Classes – myCRED Codex

myCRED_Hook

Description

This is an abstract class used to construct myCRED Hooks. It contains a set of predefined methods to help hook constructions.

Available since version 1.0

Class Properties

Property	Declared	Type	Description
`$id`	Public	string	The hook ID. Must be unique.
`$core`	Public	object	The main point type object.
`$point_types`	Public	array	All registered point type IDs.
`$is_main_type`	Public	bool	True if the current instance is the main point type (first instance) or false if not.
`$mycred_type`	Public	bool	The current point type instance.
`$prefs`	Public	array	Associative array of the hooks saved settings.

Interacting with the Class

As an abstract class, your use this by extending your own hook class.

class myCRED_Custom_Hook extends myCRED_Hook {

	function __construct( $hook_prefs, $type = MYCRED_DEFAULT_TYPE_KEY ) {

		parent::__construct( array(
			'id'       => 'hookid',
			'defaults' => array(
				'creds'   => 10,
				'log'     => '%plural% for a specific event'
			)
		), $hook_prefs, $type );

	}

}

Class Parameters

Parameter	Type	Required	Description
`$args`	array	Yes	The hook arguments containing the hooks ID and preferences.
`$hook_prefs`	array	Yes	The module settings array.
`$type`	string	Yes	The point type key instance.

Class Methods

When using this class, the only requirement is that your class must define and setup it’s own run() method, all other methods are optional and not required to use.

	Variable	Type
public function `run()` {
	Description:	If a hook is enabled, this method is run for each point type instance.
	No variables
}

	Variable	Type
public function `preferences()` {
	Description:	Method that displays the hooks settings in the admin area. If this method is not defined in your class, the hook will appear to have no settings when viewed in the admin area.
	No variables
}

	Variable	Type	Required	Description
public function `sanitise_preferences( $data )` {
	Description:	Method used to sanitize or setup hook settings after they have been saved by the user in the admin area.
	`data`	array	Yes	The hooks newly submitted settings.
}

	Variable	Type	Required	Description
public function `field_name( $field = '' )` {
	Description:	Returns the hook settings field name. Should be used when displaying settings in the admin area. Ensures that field names are always correct.
	`field`	string or array	Yes	The field name.
}

	Variable	Type	Required	Description
public function `field_id( $field = '' )` {
	Description:	Returns the hook settings field id. Should be used when displaying settings in the admin area. Ensures that field ids are always correct.
	`field`	string or array	Yes	The field id.
}

	Variable	Type	Required	Description
public function `over_hook_limit( $instance = '', $reference = '', $user_id = NULL, $ref_id = NULL )` {
	Description:	Returns true if the hook limit has been reached (assuming one has been set), else it returns false.
	`instance`	string	Yes	The hook instance to check.
	`reference`	string	Yes	The reference to check.
	`user_id`	int	Yes	The user ID to check.
	`ref_id`	int	No	Optional reference ID to check.
}

	Variable	Type
public function `get_limit_types()` {
	Description:	Returns an array of options that can be selected in the hook limit settings dropdown.
	No variables
}

	Variable	Type	Required	Description
public function `hook_limit_setting( $name = '', $id = '', $selected = '' )` {
	Description:	Returns the hook limit settings. This method can only be used in the preferences() method for instances that needs to support limits.
	`name`	string	Yes	The settings name to use.
	`id`	string	Yes	The settings id to use.
	`selected`	string	Yes	The saved settings.
	}

	Variable	Type	Required	Description
public function `has_entry( $reference = NULL, $ref_id = NULL, $user_id = NULL, $data = NULL, $type = NULL )` {
	Description:	Checks if a specific log entry exists in the database.
	`reference`	string	No	The reference to check.
	`ref_id`	int	No	The reference id to check.
	`user_id`	int	No	The user id to check.
	`data`	string	No	The data to check for. If you know the data is an array, make sure this value is a serialized array.
	`type`	string	No	The point type to check.
}

myCRED_Lottery

Package: mycred/game Category: Classes

Navigation:

Description
Usage
Properties
Methods
Lottery Parameters
Usage Examples

Description

The myCRED_Lottery class handles all lottery related information. This class does not save any information to your database, it only retrieves and processes lottery details in order for you to be able to present or retrieve.

This class requires a lottery post ID to work and only handles one lottery at a time.

Usage

$lottery = new myCRED_Lottery( $lottery_id );

Properties

$id (int)
Lottery post ID.
$post (object)
The lottery post object.
$prefs (array)
This lotteries preferences.
$state (string)
The lotteries current state.
$mycred (array)
The myCRED_Settings Object.

Methods

myCRED_Lottery()Constructs the lottery class and populates the lottery’s ID, preferences and loads the myCRED_Settings object.
lottery_exists()Checks if a lottery exists and if the lottery is found, the lottery post object is populated. If this method is not called, the post object is not populated!
default_prefs()This method holds the default settings for lotteries. It is mainly used internally though this class to populate preferences. It’s main job is to make sure there are no missing settings.
get_prefs()Returns the current lotteries preferences.
get_type()Returns the lottery type which is stored as a post meta under ‘mycred_lottery_type’.
get_schedule_prefs()Returns the lottery schedule settings.
get_game_prefs()Returns the lottery game settings.
get_participation_prefs()Returns the lottery participation settings.
get_winnings_prefs()Returns the lottery winnings settings.
get_jackpot_prefs()Returns the lottery jackpot settings.
get_exclude_prefs()Returns the lottery exclude settings.
get_requirements_prefs()Returns the lottery requirements settings.
get_templates_prefs()Returns the lottery templates.
get_state()Returns the lotteries state which is stored as a post meta under ‘mycred_lottery_status’.
get_title()Returns the lottery post title.
get_content()Returns the lottery post content.
can_play( $user_id, $entries, $repeat )Checks if a user can play this lottery. Returns a string value.
- $user_id (int) required
  The user id to check.
- $entries (int) required
  The number of entries this user would like to enter. Defaults to 1.
- $repeat (int) required
  The number of repeats that the user would like play (if allowed). Defaults to 1.
Returned string values:
- play – User can play
- visitor – User is not logged in
- closed – Lottery is closed
- excluded – User is excluded
- req – User does not meet minimum requirements
- max – User has reached heir maximum number of entries in this lottery
- insolvent – User can not afford to play
is_excluded( $user_id )Checks if a user is excluded from playing according to the “Exclude” preferences. Returns true or false.
- $user_id (int)
  The user ID to check.
fail_requirements( $user_id )Checks if a user fails to reach the minimum requirements for this lottery. Returns to true or false.
- $user_id (int)
  The user ID to check.
max_entry( $user_id )Checks if a user has reached the maximum entries allowed for this lottery according to the “Participation” settings.
- $user_id (int)
  The user ID to check.
is_insolvent( $user_id, $entries, $repeat )Checks if a user has enough points to play the number of entries and repeats that is requested. Returns true or false.
- $user_id (int) required
  The user id to check.
- $entries (int) required
  The number of entries this user would like to enter. Defaults to 1.
- $repeat (int) required
  The number of repeats that the user would like play (if allowed). Defaults to 1.
get_entries( $users )Returns either all lottery entries or all users with entries in this lottery. Returns an associative array.
- $users (bool)
  If set to true, an array of user ids are returned else if it is set to false, an associative array of user ids and entries are returned.
get_total_users_playing()Returns the number of users that are playing this lottery.
get_total_entries()Returns the total number of entries in this lottery.
get_users_entries( $user_id )Returns a given users entries.
- $user_id (int)
  The user ID.
count_users_entries( $user_id )Returns the number of entries a user has in this lottery.
- $user_id (int)
  The user ID to check.
get_ticket( $entry )Converts an entry string into an assosiative array containing the entries values.
- $entry (string)
  The entry string.
get_current_ticket_id()Returns the latest lottery ticket ID.
get_ticket_play( $ticket_id, $play )Returns the users play in this lottery. If the lottery is a draw winner type of lottery, the lottery ID is shown while in pick number lotteries, the users played number are returned.
- $ticket_id (int)
  The ticket ID.
- $play (string)
  The users play.
get_ticket_run( $repeat )Returns the number of days / weeks a play will run based on the lottery schedule.
- $repeat (int)
  The number a lottery entry is repeated.
get_current_jackpot()Returns the current jackpot (if used).
increment_current_jackpot()Returns the jackpot amount based on the current jackpot incremented according to the “Jackpot” settings.

Lottery Parameters

id (int)
Required Lottery Post ID.

Usage Examples

Example 1: Get the lottery post object and echo the publishing date.

$lottery_id = 1;
$lottery = new myCRED_Lottery( $lottery_id );
if ( $lottery->lottery_exists() ) {
	echo 'This lottery was published on: ' . $lottery->post->post_date;
}
else {
	echo 'Lottery not found.';
}

Example 2: Check if the current user can play the lottery and if they can not, show the appropriate template for why not.

$user_id = get_current_user_id();
$lottery_id = 1;
$lottery = new myCRED_Lottery( $lottery_id );
$can_play = $lottery->can_play( $user_id );
// can_play() will return the string 'play' if user can play
if ( $can_play == 'play' ) {
	// user can play
}
else {
	// user can not play so we get all templates
	$templates = $lottery->get_templates_prefs();
	echo $templates[ $can_play ];
}

myCRED_Module

Package: mycred/core Category: Classes

Description

The myCRED_Module is an abstract class, responsible for constructing and supporting each myCRED Module via the Module API. It contains a set of commonly used functions to help you built modules with ease.

As an abstract class, your module must extend this class which will allow you to use any of the provided functions or replace them with your own.

Navigation

Description
Usage
Properties
Methods
Module Arguments
Examples

Usage

class My_Custom_Module extends myCRED_Module {
	function __construct( $point_type ) {
		parent::__construct( $module_id, $args, $point_type );
	}
}

Properties

$module_id (string)
The unique module id. Important! Modules will fail and die if no module id is given!
$core (object)
myCRED Settings.
$module_name (string)
Required identifier for settings native to this module.
$option_id (string)
Optional option ID this module uses.
$labels (array)
Menu and Page Title labels. Only used if the module generates a sub page under the “myCRED” menu.
$register (boolean)
Option to register module settings (if used). Defaults to false.
$screen_id (string)
Screen ID for the module page (if used).
$menu_pos (int)
Menu position.

Methods

myCRED_Module( $module_id, $args )Constructs a module. If no module id is set this method will fail and die!
- $module_id (string) required
  Constructs a module. If no module id is set this method will fail and die!.
- $args (array)
  Module arguments.
set_settings( $defaults )Populates the modules settings applying defaults if not set.
- $defaults (array)
  Default settings.
load()Hooks into myCRED. A module can overwrite this with it’s own load() method.
module_pre_init()Runs before ‘init’.
module_init()Runs at ‘init’.
module_admin_init()Runs at ‘admin_init’.
module_widgets_init()Runs at ‘widgets_init’.
call( $call, $callback, $return )Either runs a given function or a class method. If $return is set, the value passed though it is passed on to the function/class method.
- $call (string)
  Class method name to call. Ignored if function is called.
- $callback (string)
  Function or Class to call.
- $return (any)
  Optional value to pass on and return.
add_menu()Adds a new sub menu item to the “myCRED” Admin Menu. Requires $labels and $screen_id to be set!
register_settings()Registers a modules custom settings.
settings_header()Outputs the “click to open” and “click to close” text to the accordion. Only used if the accordion is requested.
admin_page()Outputs the admin page content. This method must be replaced by the custom module or an empty page is returned.
sanitize_settings( $post )Used if the module has custom settings. This method must be replaced when used by the module and proper sanitation of the values must be made!
after_general_settings()Option to insert custom content after the myCRED Core settings.
sanitize_extra_settings( $new_data, $data, $core )If after_general_settings() is used, this method must be replaced by the custom module and sanitize the settings before they are saved into the DB. If not set, no settings are saved!
- $new_data (array)
  The sanitized and correct data to save in the database.
- $data (array)
  The initial posted data.
- $core (object)
  myCRED Settings.

Module Arguments

// default
$args = array(
	'module_name' => '',
	'option_id'   => '',
	'defaults'    => array(),
	'labels'      => array(
		'menu'        => '',
		'page_title'  => ''
	),
	'register'    => true,
	'screen_id'   => '',
	'add_to_core' => false,
	'accordion'   => false,
	'menu_pos'    => 10
);

module_name (string)
Module name used when modules add settings that can be accessed though myCRED_Settings.

option_id (string)
Optional option id used by this module.

defaults (array)
Default module settings.

labels (array)
Array of labels when the module has it’s own admin page.

register (boolean)
Option to register a modules settings though register_setting(). Should be set to true of option_id is set.

screen_id (string)
A screen id if the module generates a custom admin page.

add_to_core (boolean)
Option to add module settings to the myCRED Settings page. Defaults to false.

accordion (boolean)
Option to include the Accordion script on the module page. Defaults to false.

menu_pos (int)
Menu position.Default positions: Log (10), Hooks (20), Add-ons (30), Settings (99).

Examples

Example 1: A module which generates a new menu item between Log and Hooks called “Custom”.

class My_Custom_Module extends myCRED_Module {
	function __construct() {
		parent::__construct( 'My_Custom_Module', array(
			'module_name' => 'custom',
			'labels'      => array(
				'menu'        => __( 'Custom' ),      // Menu Label
				'page_title'  => __( 'Custom Page' )  // Page Title
			),
			'screen_id'   => 'myCRED_page_custom',
			'menu_pos'    => 15
		) );
	}

	function admin_page() {
		echo 'This is my custom page!';
	}
}

Example 2: A module which does not add a new page but instead adds new settings under myCred Settings.

class My_Custom_Module extends myCRED_Module {
	function __construct() {
		parent::__construct( 'My_Custom_Module', array(
			'module_name' => 'custom',
			'defaults'    => array(
				'foo'   => 1,
				'bar'   => ''
			),
			'register'    => false,
			'add_to_core' => true
		) );
	}

	// Output our settings or content
	function after_general_settings() {
		// We can access our custom settings under $this->$module_name
		$custom_settings = $this->custom;
		echo 'Custom settings output.';
	}

	// Sanitize our settings
	function sanitize_extra_settings( $new_data, $data, $core ) {
		// Our custom settings are found under $data[$module_name]
		$new_data['custom']['foo'] = sanitize_text_field( $data['custom']['foo'] );
		$new_data['custom']['bar'] = sanitize_text_field( $data['custom']['bar'] );
	}
}

myCRED_Payment_Gateway

Package: mycred/purchase Category: Classes

Navigation:

Description
Usage
Properties
Methods

Description

The myCRED_Payment_Gateway is a template class used by the Buy Creds Add-on. It contains all the neccessery class methods along with a set of template functions.

Note! You should never initiate this class directly! Instead make sure your custom hook extends it (see usage example bellow).

Usage

class My_Custom_Gateway extends myCRED_Payment_Gateway {
	function __construct( $gateway_prefs ) {
		parent::__construct( $args, $gateway_prefs );
	}
}

Properties

$id (string)
Gateway ID.
$core (object)
myCRED Settings.
$prefs (array)
This gateways preferences.
$current_user_id (int)
The current users id (if logged in).
$response (string)
Responses from the gateway or via the execution of the gateway. It can for example hold information when an error occurs.
$request (array)
The purchase request being sent to the gateway to process.
$status (int|string)
Payment status.
$errors (array)
Holds (if any) error objects.

Methods

myCRED_Payment_Gateway()Class constructor populating $current_user_id, $args, $prefs and $core.
process()This method must be replaced by the child class and should manage requests from either form submissions resulting in contacting a payment gateway or by incoming notifications/verifications from a gateway.
buy()This method must be replaced by the child class and should manage requests made to purchase creds. All purchase requests must nominate the gateway to avoid multiple gateway attempting to process the same purchase.
returning()This method must be replaced by the child class if a purchase request were processed remotely.
preferences()Outputs the gateways preferences. If not set, the default “This Gateway has no settings” is shown.
sanitise_preferences( $data )Option to sanitize the gateways settings before they are saved in the database.
- $data (array)
  The posted data.
field_name( $data )Outputs this gateways field name.
- $data (string|array)
  Either a string with the field id or an array if hook has multiple settings.
field_id( $data )Outputs this gateways field id.
- $data (string|array)
  Either a string with the field id or an array if hook has multiple settings.
decode_log_entries( $entry, $object )This method decodes the log entry for purchases. When purchases are made, the buyers ID is saved under ref_id allowing us to use this users data as template tags.
- $entry (type)
  The log entry.
- $object (type)
  The log object.
callback_url()Returns the callback URL for this gateway. Used by PayPal as the URL for the IPN callback. Can be used by any gateway that requires a callback URL.
purchase_header( $title, $reload )Purchase page header.
purchase_footer()The purchase page’s footer.
form_with_redirect( $hidden_fields, $location, $logo_url, $custom_html, $sales_data )Generates a purchase form with the given hidden fields along with a gateway logo and optional custom html. Used by gateways with remote processors (i.e. PayPal or Skrill).
- $hidden_fields (array)
  Required hidden form fields needed by the gateway.
- $location (string)
  Form action URL.
- $logo_url (string)
  Optional gateway logo URL.
- $custom_html (string)
  Optional HTML to insert in page.
- $sales_data (string|array)
  Optional sales data to include in page.
get_to()Returns either the current user id or if gifting is enabled and used the id of the user this is gifted to.
get_thankyou()Returns the “Thank You” page URL.
get_cancelled()Returns the “Cancelled” page URL.
get_entry( $_to, $_from )Returns the appropriate log entry template. If “Gifting” is enabled and the two values do not match the gift template is returned.
- $_to (int)
  The user id of the recipient.
- $_from (int)
  The user id of the purchaser.
POST_to_data( $unset )Converts posted variables to local with the option to unset $_POST once done.
- $unset (bool)
  Option to unser $_POST before returning the variables.
transaction_id_is_unique( $transaction_id )Searches the log for a given transaction id. Returns false if id was found else true. Used to make sure purchases are unique.
- $transaction_id (string|int) required
  The transaction id to look for.
create_token()Returns a WP Nonce for the purchase. Uses wp_create_nonce().
verify_token( $user_id, $nonce )Based on wp_verify_nonce() with the difference that a user id must be given. Returns true or false.
- $user_id (type) required
  User id for the nonce in question.
- $nonce (type) required
  The nonce.
encode_sales_data( $data )Encodes the sales data. Uses the myCRED_Protect() class.
- $data (string) required
  The data to be encoded.
decode_sales_data( $data )Decodes the sales data. Uses the myCRED_Protect() class.
- $data (string) required
  The data to be decoded.
currencies_dropdown( $name )Generates a drop-down menu with accepted currencies. Uses the ‘mycred_dropdown_currencies’ filter.
- $name (string) required
  The drop-down elements name.
item_types_dropdown( $name )Generates a drop-down menu with available item types. Used by PayPal. Uses the ‘mycred_dropdown_item_types’ filter.
- $name (string) required
  description.
list_option_countries( $selected )Echos a list of html options for nations, highlighting the selected. Uses the ‘mycred_list_option_countries’ filter.
- $selected (string)
  The selected countries two letter code.
list_option_us_states( $selected, $non_us )Echos a list of html options for US states. If $non_us is set to true the “Outside US” option is appended.
- $selected (string)
  The selected states two letter abbreviation.
- $non_us (boolean)
  Option to add “Outside US”.
list_option_months( $selected )Echos a list of html options for each month.
- $selected (int) required
  The selected month number with leading zero.
list_option_card_years( $selected, $number )Echos a list of html options for credit card expiry years.
- $selected (type) required
  The selected years last two digits.
- $number (type) required
  The number of years into the future to generate. Defaults to 16.

myCRED_Query_Log

Package: mycred/log Category: Classes

Description

This class allows you to search the myCRED Log for entries based on a large variety of options. Similar to the WP_Query class, you can use this class to query and then loop through the results in order to show the results in any way you like. Currently the class also has a large set of functions to help you render a table where these results are presented. This feature is currently used by the Log module in your admin area and by the mycred_history shortcode / widget.

In version 1.8, this class will be split up and focus on running queries in the database while a separate class will be made available that will render the table to show the results.

This documentation is for version 1.7 or later which was introduced in myCRED 1.7.5.

Interacting with the Class

While the class offers a large number of functions for you to use, your most common interaction will be with constructing and providing arguments for your search.

// Example 1: Show the last 10 entries
$args = array(
	'number' => 10
);

// The Query
$log = new myCRED_Query_Log( $args );

// The Loop
if ( $log->have_entries() ) {

	// Display using the built-in table
	$log->display();

}

// Example 2: Get log entries for user 1
$args = array(
	'user_id' => 1
);

// The Query
$log = new myCRED_Query_Log( $args );

// The Loop
if ( $log->have_entries() ) {

	// Build your custom loop
	foreach ( $log->results as $entry ) {

		// Present the results anyway you like

	}

}

Class Properties

Property	Declared	Type	Description
`$now`	Public	int	The current unix timestamp. Used for date / time rendering and parsing.
`$render_mode`	Public	bool	Indicates if the class allows results to be rendered using the built-in methods or if only queries can be made. Added in 1.7.5
`$args`	Public	array	Holds the arguments that the class was constructed around.
`$request`	Public	string	The SQL query that was run to get the results you are seeing.
`$num_rows`	Public	int	The number of rows the query returned.
`$max_num_pages`	Public	string	The maximum number of pages the results span over. Defaults to 1.
`$total_rows`	Public	int	The total number of rows in the database.
`$results`	Public	array	The results of your query.
`$headers`	Public	array	Holds an associative array of headers that the table will render.
`$hidden_headers`	Public	array	Holds an array of header ids that you have selected to hide.
`$core`	Public	object	The myCRED_Settings class object.
`$is_admin`	Public	bool	Indicates if the class is used in the front end or in the wp-admin area.
`$references`	Public	array	An array of reference IDs and their labels. This is used to translate each log entries reference when displayed in the table.
`$refs`	Public	array	An array containing all references that exists in the database, based on the current query. Added in 1.7.5
`$types`	Public	array	Populated with the myCRED_Settings object for each point type we are searching for. This is used when you are rendering a table for the query results with multiple point types. Added in 1.7.5

Class Parameters

The class has only two parameters that you can use.

Parameter	Type	Required	Description
`$args`	array	Yes	The query arguments to return results for.
`$array`	bool	No	Option to return entries in an array format instead of object format. Can not be used when the `fields` argument is set to return a specific column.

Query Arguments

Arguments can be passed in string or array format. When using a string format, you separate each argument with an & character. String format is well suited in simple straightforward queries, however for more advanced queries, an array format is required.

Entry IDs

Argument	Type	Description
`entry_id`	array or int	Retrieve log entries based on their unique ids. Supports queries of a single id or multiple ids. Supports `=`, `!=`, `IN` and `NOT IN` comparisons.

Example 1: Get a single entry that has the id 1

$log = new myCRED_Query_Log( 'entry_id=1' );

Example 2: Get multiple entries

$log = new myCRED_Query_Log( array( 'entry_id' => array( 1, 2, 3 ) );

Example 3: Get entries that does not have the ids 1 or 2

$args = array(
	'entry_id' => array(
		'ids'     => array( 1, 2 ),
		'compare' => 'NOT IN'
	)
);
$log  = new myCRED_Query_Log( $args );

Example 4: Get entries that does not have the id 5

$args = array(
	'entry_id' => array(
		'ids'     => 5,
		'compare' => '!='
	)
);
$log  = new myCRED_Query_Log( $args );

Point Types

Argument	Type	Description
`ctype`	array or string	Retrieve log entries of a particular point type or multiple types based on the point type key. Supports `=`, `!=`, `IN` and `NOT IN` comparisons.

If this argument is not set, the class will set it to show entries of the main point type. To show entries no matter which point type they belong to, make sure you set this attribute to an empty string.

Example 1: Get entries of the default point type

$log = new myCRED_Query_Log( 'ctype=mycred_default' );

Example 2: Get entries of a custom point type

$log = new myCRED_Query_Log( array( 'ctype' => 'mycustom_type' ) );

Example 3: Get entries that are not of a custom point type

$args = array(
	'ctype' => array(
		'ids'     => array( 'mycustom_type', 'anothertype' ),
		'compare' => 'NOT IN'
	)
);
$log  = new myCRED_Query_Log( $args );

Example 4: Get entries of all point types

$log = new myCRED_Query_Log( array( 'ctype' => '' ) );

User IDs

Argument	Type	Description
`user_id`	array or int	Retrieve log entries one or multiple users based on their numeric IDs. Supports `=`, `!=`, `IN` and `NOT IN` comparisons.

If you do not know the users numeric ID, you can always use the mycred_get_user_id function which supports converting usernames, email addresses or slugs into numeric IDs (assuming a user is found to match).

Example 1: Get entries for the user with the ID 1

$log = new myCRED_Query_Log( 'user_id=1' );

Example 2: Get entries for a set of users

$log = new myCRED_Query_Log( array( 'user_id' => array( 1, 2, 4 ) ) );

Example 3: Get entries that do not belong to users 1, 2 and 6

$args = array(
	'user_id' => array(
		'ids'     => array( 1, 2, 6 ),
		'compare' => 'NOT IN'
	)
);
$log  = new myCRED_Query_Log( $args );

References

Argument	Type	Description
`ref`	array or string	Retrieve log entries based on one or multiple references. Supports `=`, `!=`, `IN` and `NOT IN` comparisons.

Example 1: Get all manual entries

$log = new myCRED_Query_Log( 'ref=manual' );

Example 2: Get entries for approved comments and published content

$log = new myCRED_Query_Log( array( 'ref' => array( 'approved_comment', 'published_content' ) ) );

Example 3: Get all entries that are not manual

$args = array(
	'ref' => array(
		'ids'     => 'manual',
		'compare' => '!='
	)
);
$log  = new myCRED_Query_Log( $args );

Example 4: Get all entries of a custom reference

$args = array(
	'ref' => array(
		'ids'     => 'mycustomreference',
		'compare' => '='
	)
);
$log  = new myCRED_Query_Log( $args );

Reference IDs

Argument	Type	Description
`ref_id`	array or int	Retrieve log entries based on one or multiple reference IDs. Supports `=`, `!=`, `<`, `<=`, `>=`, `IN` and `NOT IN` comparisons.

Example 1: Get all entries with the reference id 1

$log = new myCRED_Query_Log( 'ref_id=1' );

Example 2: Get entries with a reference id of 1, 2 or 3

$log = new myCRED_Query_Log( array( 'ref_id' => array( 1, 2, 3 ) ) );

Example 3: Get all entries with a reference id lower than 100

$args = array(
	'ref_id' => array(
		'ids'     => 100,
		'compare' => '<'
	)
);
$log  = new myCRED_Query_Log( $args );

Example 4: Get all entries that have a reference id higher or equal to 10, no matter which point type the entry belongs to

$args = array(
	'ref_id' => array(
		'ids'     => 10,
		'compare' => '>='
	),
	'ctype' => ''
);
$log  = new myCRED_Query_Log( $args );

Point Amounts

Argument	Type	Description
`amount`	array or int or float	Retrieve log entries based on one or multiple amounts. Supports `=`, `!=`, `<`, `<=`, `>=`, `BETWEEN`, `NOT BETWEEN`, `IN` and `NOT IN` comparisons.

Example 1: Get all entries were users gained 1000 points

$log = new myCRED_Query_Log( 'amount=1000' );

Example 2: Get entries where a user gained 10, 20 or 50 points

$log = new myCRED_Query_Log( array( 'amount' => array( 10, 20, 50 ) ) );

Example 3: Get all entries where a user has gained between 0 and 100 points

$args = array(
	'amount' => array(
		'num'     => array( 0, 100 ),
		'compare' => 'BETWEEN'
	)
);
$log  = new myCRED_Query_Log( $args );

Example 4: Get all entries where a user lost points, no matter which point type

$args = array(
	'amount' => array(
		'num'     => 0,
		'compare' => '<'
	),
	'ctype' => ''
);
$log  = new myCRED_Query_Log( $args );

Time

Argument	Type	Description
`time`	array or int or string	Retrieve log entries for a given time period or date/time. You can supply a well formatted date/time string, a unix timestamp or a keyword. Supported keywords: `today`, `yesterday`, `thisweek` and `thismonth`. Supports `=`, `!=`, `<`, `<=`, `>=`, `BETWEEN`, `NOT BETWEEN`, `IN` and `NOT IN` comparisons.

myCRED stores dates in unix timestamp format. If you do not provide a unix timestamp, the class will use strtotime to convert your given date/time into a unix timestamp. This allows you to to use keywords that strtotime accepts along with dates/times.

If you provide a date but not a time, the class will query entries up until the end of the day and not the beginning of the day! If this is not desired, make sure you also include a time with your date.

Example 1: Get todays entries

$log = new myCRED_Query_Log( 'time=today' );

Example 2: Get all entries for a specific date

$log = new myCRED_Query_Log( array( 'time' => '2016-10-01' ) );

Example 3: Get all entries between two dates

$args = array(
	'time' => array(
		'dates'   => array( '2016-01-01 00:00:01', '2016-12-31 23:59:59' ),
		'compare' => 'BETWEEN'
	)
);
$log  = new myCRED_Query_Log( $args );

Example 4: Get all entries before the start of today

$args = array(
	'time' => array(
		'dates'   => 'today midnight',
		'compare' => '<'
	)
);
$log  = new myCRED_Query_Log( $args );

Searching

Argument	Type	Description
`s`	int or string	Search the "entry" columns and retrieve entries that match. You can use wildcards `%` for LIKE comparisons.
`data`	int or string	Search the "data" columns and retrieve entries that match. You can use wildcards `%` for LIKE comparisons.

As of version 1.7.5, no wildcards are added to the search string automatically. Instead you are required to add them in. If no wildcards are used, the class will search the value exactly.

Example 1: Get entries that has the string “boo“ in their description

$log = new myCRED_Query_Log( 's=boo' );

Example 2: Get entries where the “entry“ columns content starts with “Tokens“

$log = new myCRED_Query_Log( array( 's' => 'Tokens%' ) );

Example 3: Get entries that has the string “boo“ in their data column

$log = new myCRED_Query_Log( 'data=boo' );

Example 4: Get entries where the “data“ columns content a serialized array

$log = new myCRED_Query_Log( array( 'data' => 'a:1:{s:8:"ref_type";s:4:"user";}' ) );

Sorting of Results

Argument	Type	Description
`orderby`	array or string	Sort the retrieved log entries. As of version 1.7.5 you can sort by multiple columns by providing an array of columns and their order.
`order`	string	Either `ASC` for ascending or `DESC` for descending. Ignored if `orderby` is an array.

Example 1: Get entries for the user 1 ordered by time in an ascending order (latest entry is shown last)

$args = array(
	'user_id' => 1,
	'orderby' => 'time',
	'order'   => 'ASC'
);
$log  = new myCRED_Query_Log( $args );

Example 2: Get “Manual“ entries sorted by the point amount (largest first), then by time

$args = array(
	'ref'     => 'manual',
	'orderby' => array( 'creds' => 'DESC', 'time' => 'DESC' )
);
$log  = new myCRED_Query_Log( $args );

Return Fields

Argument	Type	Description
`fields`	array or string	Either the name of a particular column or an array of column names you want returned in your results. See the log structure documentation for accepted values.
`ids`	bool	Option to only return the log entries unique ID. Depreciated since 1.7.5 and will be removed in future versions in favour for `fields`.

The fields argument was introduced in version 1.7.5 and is not available on older versions! If you use this argument, you will not have access to the table rendering methods in this class as these methods were built to show results from all columns and not just some / one. If used, the $render_mode Parameter will switch to FALSE.

Example 1: Get the log entry ids only for a specific user

$args = array(
	'user_id' => 1,
	'fields'  => 'id'
);
$log  = new myCRED_Query_Log( $args );

Example 2: Get the log entry ids and the point amounts only for a specific user

$args = array(
	'user_id' => 5,
	'fields'  => array( 'id', 'creds' )
);
$log  = new myCRED_Query_Log( $args );

Pagination

Argument	Type	Description
`number`	int	The number of entries to return. By default this is 25. Use `-1` to return all entries. If you are rendering the results in the class table, this will be the number of entries shown per page.
`paged`	int	The page number. Retrieve entries that would show on page x when using the navigation. Defaults to `1` as in the first page.
`offset`	int	Number of entries to displace or pass over. Should be used in combination with `number`. Defaults to zero.

It is not recommended to show all log entries when you intend to render then in the class table! If you do, the page will load slower and slower as the number of entries increase!

Example 1: Show 15 entries per page

$args = array(
	'user_id' => 1,
	'number'  => 15
);
$log  = new myCRED_Query_Log( $args );

Example 2: Get all manual log entries

$args = array(
	'ref'    => 'manual',
	'number' => -1
);
$log  = new myCRED_Query_Log( $args );

Query Filters

Your query will trigger the following filters whenever the class is constructed:

Filter	Description
mycred_query_log_args	Allows you to manipulate the query arguments before it is processed by the class.
mycred_allowed_sortby	Controls what values the query can be sorted by. By default this is the log column headers.

myCRED_Remote

Package: mycred/api Category: Classes

Navigation:

Description
Supported Actions
Properties
Methods
Error Messages

Description

This is the main myCRED API class allowing your site to award / deduct points based on requests from other websites. Just like everything else in myCRED, this class is pluggable and can be replaced / altered. There are also several actions and filters associated with this class allowing further customizations / expansion.

Requires myCRED 1.3 or higher.

Supported Actions

CREDIT
Add points to a specific user.
DEBIT
Deduct points from a specific user.
GET
Get the current balance of a specific user.
PAY
Deduct points from one user and credit the amount deducted to another user.

Supported Methods

JSON
_GET
_POST

If you are looking to create call scripts to interact with this class, please consider using the wp_remote_get or wp_remote_post WordPress functions.

Properties

$method (string)
The method used for the incoming API call.
$uri (array)
The $_SERVER[‘REQUEST_URI’] value in an array format.
$request (array)
The API call request array.
$host (string)
The remote callers IP address.
$format (string)
The format of the API call.
$user (object)
The requested user object.
$recipient (object)
The requested recipient user object. Only used for transfers.
$reply (string)
The reply sent back once the call has been processed. Defaults to ‘PROCESSING’. See the error list for a complete list of possible replies.
$core (object)
The myCRED_Settings object.
$key (string)
The API Key.

Methods

myCRED_Remote( $key )Handles magic quotes, populates $method, $uri, $format, $host and $core. Requires the API key.

Action: mycred_remote (ref array)
handle_magic()Handles magic quotes for $_GET, $_POST, $_COOKIE and $_REQUEST.

Action: mycred_remote_magic(ref array)
set_headers()Sets the API reply headers.

Action: mycred_remote_headers (ref array)
parse_call()Parses the API call to determine how the API call is made. Supports JSON or HTML. Populates $request and $format.

Action: mycred_remote_parse (ref array)
get_host_IP()Retreaves the IP address of the caller.

Action: mycred_remote_host_IP (ref array)
validate_call()Validates the API call. This method either returns an error message or true if the call passes validation.

Action: mycred_remote_validate (ref array)
Returns: True (bool) or an error code (string).
process()The main API processor. Processes the API request and returns a string reply. Possible values:

Filter: mycred_transfer_acc_limit
Action: mycred_remote_process (ref array)
Action: mycred_remote_process_{$action} (ref array)
Returns: The process result (string).
- COMPLETEDThe request has been successfully completed.
- FAILEDThe request failed.
- DUPLICATEThe request is deemed to be a duplicate and was rejected.
- DECLINEDThe request was declined due to insufficient funds.
- UNKNOWNUnknown / unsupported request.

Error Messages

Important! The following error messages is only available if you have enabled “Debug Mode”. It is very important to disable “Debug Mode” once you are done testing / developing to prevent mischievous calls from learning about your setup!

0 – 100 Plugin related issues.
- ERROR: 99 The API Key has not been set or is empty.
100 – 199 API Call related issues.
- ERROR: 101 The request is empty.
- ERROR: 102 The required “action” key is missing or empty in the request.
- ERROR: 103 The required “account” key is missing or empty in the request.
- ERROR: 104 The required “token” key is missing or empty in the request.
- ERROR: 105 The required “host” key is missing or empty in the request.
200 – 299 User related issues.
- ERROR: 201 The user count not be found. Remember that the API only supports users identified via an email address.
- ERROR: 202 The user is excluded from using myCRED.
300 – 399 Request specific issues regardless of what action is requested.
- ERROR: 301 Invalid security token.
- ERROR: 302 Unknown / Unsupported Action request.
400 – 499 CREDIT & DEBIT related issues.
- ERROR: 401 The required “ref” key is missing or empty in the request.
- ERROR: 402 The required “entry” key is missing or empty in the request.
- ERROR: 403 The required “amount” key is missing or empty in the request.
500 – 599 GET related issues.
- none
600 – 699 PAY related issues.
- ERROR: 501 The required “ref” key is missing or empty in the request.
- ERROR: 502 The required “entry” key is missing or empty in the request.
- ERROR: 503 The required “amount” key is missing or empty in the request.
- ERROR: 504 The required “to” key is missing or empty in the request.
- ERROR: 505 The required “data” key is missing or empty in the request.
- ERROR: 506 The recipient user could not be found.
- ERROR: 507 The recipient user ID is the same as the sender.
- ERROR: 508 The recipient user has been excluded from using myCRED.

myCRED_Settings

Package: mycred/core Category: Classes

Description

This class constructs and enables a set of core tools that allows you to execute point related actions or retrieve points related details.

Multiple point type support was added in version 1.4. Older versions of this class differ significantly and are no longer supported!

Available since version 1.0

Interacting with the Class

While the class can be called directly, it is highly recommended that you instead use the mycred function.

// Default usage
$mycred = mycred();

// Setup for a custom point type
$mycred = mycred( 'customtypekey' );

Class Properties

Property	Declared	Type	Description
`$core`	Public	array	The settings array for the current point type.
`$log_table`	Public	string	The database table name based on your Network settings (if you use Multisite).
`$cred_id`	Public	string	The meta key ID of the current point type.
`$is_multisite`	Public	bool	The value of the is_multisite function.
`$use_master_template`	Public	bool	True if the master template feature is enabled. False if not using multisite.
`$use_central_logging`	Public	bool	True if the central logging is enabled. False if not using multisite.

Class Parameters

The class has only one parameter that can be used.

Parameter	Type	Required	Description
`$typekey`	string	No	The point type key to construct.

Class Methods

While you can interact with balances without using this class, the methods offered here will make sure your interaction happens faster and safer. Using these methods also ensures that you always have access to all point related features in myCRED.

	Variable	Type
public function `defaults()` {
	Description:	Returns the default settings array which is used when compiling the point type's settings.
	No variables
}

	Variable	Type
public function `singular()` {
	Description:	Returns the current point types name in singular form.
	No variables
}

Example 1: Display the point types given name in singular form

$mycred = mycred();

echo $mycred->singular();

	Variable	Type
public function `plural()` {
	Description:	Returns the current point types name in plural form.
	No variables
}

Example 1: Display the point types given name in plural form

$mycred = mycred();

echo $mycred->plural();

	Variable	Type
public function `zero()` {
	Description:	Returns zero formatted according to the point type setup.
	No variables
}

	Variable	Type	Required	Description
public function `number( $number = '' )` {
	Description:	Returns the given value formatted according to the point types setup. Should be used when points are used in calculations.
	`number`	int or float	Yes	The value to format.
}

	Variable	Type	Required	Description
public function `format_number( $number = '' )` {
	Description:	Returns a given value formatted based on the point types settings as a string. Should be used when points are intended to be displayed and not used in calculations.
	`number`	int or float	Yes	The value to format.
}

	Variable	Type	Required	Description
public function `format_creds( $creds = 0, $before = '', $after = '', $force_in = false )` {
	Description:	Returns a given value formatted based on the point types settings with prefix / suffix added (if used). Can not be used in calculations!
	`creds`	int or float	Yes	The value to format.
	`before`	string	No	Optional string to attach before the formatted point value. If you use a prefix, this string is appended before the prefix.
	`after`	string	No	Optional string to attach after the formatted point value. If you use a suffix, this string is appended after the suffix.
	`force_in`	bool	No	Option to force the $before or $after variables before / after the prefix / suffix.
}

Example 1: Display a users balance formatted with a prefix / suffix (if used)

$mycred  = mycred();
$balance = $mycred->get_users_balance( get_current_user_id() );

echo $mycred->format_creds( $balance );

	Variable	Type	Required	Description
public function `round_value( $amount = 0, $up_down = false, $precision = 0 )` {
	Description:	Rounds a given value either up or down with an option to set the precision.
	`amount`	int or float	Yes	The value to round.
	`up_down`	string	Yes	Either "up" to round up or "down" to round down.
	`precision`	int	No	Rounding precision. Defaults to zero.
}

	Variable	Type
public function `get_lowest_value()` {
	Description:	Returns the lowest possible points value above zero based on the point type setup. A point type setup that does not uses any decimals would return 1 while a point type using for example 2 decimal places would return 0.01. Mainly used to prevent users from sending partial points.
	No variables
}

	Variable	Type	Required	Description
public function `apply_exchange_rate( $amount = 0, $rate = 1, $round = true )` {
	Description:	Divides the amount by the given rate.
	`amount`	int or float	Yes	The initial point amount.
	`rate`	int or float	Yes	The exchange rate that are applied to the amount.
	`round`	bool	No	Option to round the value. Uses PHP round.
}

	Variable	Type	Required	Description
public function `parse_template_tags( $content = '', $log_entry )` {
	Description:	Parses template tags in a given string. Can only be used when a log entry object is available. Based on the data column details, this method loads the appropriate template tag processor (see below).
	`content`	string	Yes	The string that potentially contain template tags.
	`log_entry`	object	Yes	The log entry object.
}

	Variable	Type	Required	Description
public function `template_tags_general( $content = '' )` {
	Description:	Converts general template tags into their appropriate values.
	`content`	string	Yes	The string that potentially contain template tags.
}

	Variable	Type	Required	Description
public function `template_tags_amount( $content = '', $amount = 0 )` {
	Description:	Converts amount related template tags into their appropriate values. Uses template_tags_general().
	`content`	string	Yes	The string that potentially contain template tags.
	`amount`	int or float	Yes	The amount to use when replacing amount related template tags.
}

	Variable	Type	Required	Description
public function `template_tags_post( $content = '', $ref_id = NULL, $data = '' )` {
	Description:	Converts post related template tags into their appropriate values. Uses template_tags_general().
	`content`	string	Yes	The string that potentially contain template tags.
	`ref_id`	int	Yes	The reference ID stored with the log entry, usually the post object ID.
	`data`	string or array	No	The data stored with the log entry. Mainly used when a post has been deleted as the old past data is stored in the data column.
}

	Variable	Type	Required	Description
public function `template_tags_user( $content = '', $ref_id = NULL, $data = '' )` {
	Description:	Converts user related template tags into their appropriate values. Uses template_tags_general().
	`content`	string	Yes	The string that potentially contain template tags.
	`ref_id`	int	Yes	The reference ID stored with the log entry, usually the user object ID.
	`data`	string or array	No	The data stored with the log entry.
}

	Variable	Type	Required	Description
public function `template_tags_comment( $content = '', $ref_id = NULL, $data = '' )` {
	Description:	Converts comment related template tags into their appropriate values. Uses template_tags_general().
	`content`	string	Yes	The string that potentially contain template tags.
	`ref_id`	int	Yes	The reference ID stored with the log entry, usually the comment object ID.
	`data`	string or array	No	The data stored with the log entry.
}

	Variable	Type	Required	Description
public function `has_tags( $type = '', $tags = '', $content = '' )` {
	Description:	Checks if a given string contains any template tags based on a set type e.g. comment, post or user. Returns true or false.
	`type`	string	Yes	The template tag type.
	`tags`	string	Yes	List of template tags to check for. This list is passed on to preg_match so if more then one tag needs to be checked for, this must be separated with a horizontal line \|.
	`content`	string	Yes	The content string that needs to be checked.
}

	Variable	Type	Required	Description
public function `available_template_tags( $available = array(), $custom = '' )` {
	Description:	Returns a string indicating the available template tags that can be used.
	`available`	array	Yes	An array or template tag types. These will be listed after the sentence: `Available Template Tags:`.
	`custom`	string	No	Optional list of additional / special template tags that are appended at the end of the string.
}

	Variable	Type	Required	Description
public function `allowed_tags( $data = '', $allow = '' )` {
	Description:	Strips HTML tags of a given string based on the allowed html tags list provided by the allowed_html_tags method.
	`data`	string	Yes	The string that contains HTML tags that needs to be stripped.
	`allow`	array or bool	No	Either `false` to strip all tags, an array or allowed HTML tags not to strip of or if left empty, a default set of tags are removed.
}

	Variable	Type
public function `edit_creds_cap()` {
	Description:	Returns the capability set for point editors.
	No variables
}

Example 1: Make sure the current user is a point editor.

$mycred = mycred();

// If the current user is a "point editor"
if ( current_user_can( $mycred->edit_creds_cap() ) ) {

}

	Variable	Type	Required	Description
public function `can_edit_creds( $user_id = '' )` {
	Description:	Checks if a given user is a "point editor" based on the current point type. Uses user_can.
	`user_id`	int	Yes	The user ID to check.
}

	Variable	Type
public function `edit_plugin_cap()` {
	Description:	Returns the capability set for point administrators.
	No variables
}

Example 1: Make sure the current user is a point editor.

$mycred = mycred();

// If the current user is a "point administrator"
if ( current_user_can( $mycred->edit_plugin_cap() ) ) {

}

	Variable	Type	Required	Description
public function `can_edit_plugin( $user_id = '' )` {
	Description:	Checks if a given user is a "point administrator" based on the current point type. Uses user_can.
	`user_id`	int	Yes	The user ID to check.
}

	Variable	Type	Required	Description
public function `in_exclude_list( $user_id = '' )` {
	Description:	Checks if a given user is in the list of excluded users. The ID is checked against the comma separated list of IDs you might have set to the current point type.
	`user_id`	int	Yes	The user ID to check.
}

	Variable	Type
public function `exclude_plugin_editors()` {
	Description:	Checks if the current point type has been set to exclude "point administrators". Returns true or false.
	No variables
}

	Variable	Type
public function `exclude_creds_editors()` {
	Description:	Checks if the current point type has been set to exclude "point editors". Returns true or false.
	No variables
}

	Variable	Type	Required	Description
public function `exclude_user( $user_id = NULL )` {
	Description:	Checks if the given user is excluded from the current point type.
	`user_id`	int	Yes	The user object ID.
}

Example 1: Check if the current user is excluded from using the current point type.

$user_id = get_current_user_id();
$mycred  = mycred();

if ( ! $mycred->exclude_user( $user_id ) ) {

	// User is not excluded

}

	Variable	Type
public function `count_members()` {
	Description:	Returns the total number of users with a balance of the current point type.
	No variables
}

	Variable	Type
public function `get_cred_id()` {
	Description:	Returns ID of the current point type.
	No variables
}

	Variable	Type
public function `max()` {
	Description:	Returns the highest value allowed for the current point type.
	No variables
}

	Variable	Type	Required	Description
public function `get_users_balance( $user_id = NULL, $type = NULL )` {
	Description:	Returns the given users current balance for either a given point type or the current point type.
	`user_id`	int	Yes	The users numeric ID.
	`type`	string	No	Option to retrieve a users balance for a different point type then the current one. If you are want the current point types balance then this should not be used.
}

Example 1: Get the current users balance for the current point type

$user_id = get_current_user_id();
$mycred  = mycred();
$balance = 0;

// Get the balance if the user is not excluded
if ( ! $mycred->exclude_user( $user_id ) )
	$balance = $mycred->get_users_balance( $user_id );

It is highly recommended that you always check if a user is excluded before attempting to get their balance or before you introduce the user to balance related features. You might not be excluding a user right now but might do so at a later stage.

	Variable	Type	Required	Description
public function `update_users_balance( $user_id = NULL, $amount = NULL, $type = NULL )` {
	Description:	Updates a given users points balance by a given value. This value can be positive to increase a users balance or negative to reduce a balance.
	`user_id`	int	Yes	The users numeric ID.
	`amount`	int or float	Yes	The point amount to adjust the balance with. This value must be properly formatted. If the point type does not use decimals, then the amount can not use decimals either.
	`type`	string	No	Option to update a different point balance then the current point type.
}

Example 1: Add 10 points to the current users balance.

$user_id = get_current_user_id();
$mycred  = mycred();
$amount  = 10;

// Update the balance if the user is not excluded
if ( ! $mycred->exclude_user( $user_id ) )
	$mycred->update_users_balance( $user_id, $amount );

Example 2: Deduct 50 points to the current users balance.

$user_id = get_current_user_id();
$mycred  = mycred();
$amount  = -50;

// Update the balance if the user is not excluded
if ( ! $mycred->exclude_user( $user_id ) )
	$mycred->update_users_balance( $user_id, $amount );

This method does not check if the user you are adjusting the balance for is excluded or not! This needs to be done before using this method.

	Variable	Type	Required	Description
public function `set_users_balance( $user_id = NULL, $new_balance = NULL )` {
	Description:	Changes a users balance to the given value. Added in 1.7.3. Can only be used for the current point type.
	`user_id`	int	Yes	The users numeric ID.
	`new_balance`	int or float	Yes	The point amount to adjust the balance with. This value must be properly formatted. If the point type does not use decimals, then the amount can not use decimals either.
}

Example 1: Change the current users balance to 100 points.

$user_id     = get_current_user_id();
$mycred      = mycred();
$new_balance = 100;

// Update the balance if the user is not excluded
if ( ! $mycred->exclude_user( $user_id ) )
	$mycred->set_users_balance( $user_id, $new_balance );

	Variable	Type	Required	Description
public function `add_creds( $ref = '', $user_id = '', $amount = '', $entry = '', $ref_id = '', $data = '', $type = MYCRED_DEFAULT_TYPE_KEY )` {
	Description:	Adds or deducts points from a given users account and saves a log entry of the transaction. Contrarily to what the name suggests, this method can be used to adding points as well as deducting points.
	`ref`	string	Yes	The reference to log the transaction under.
	`user_id`	int	Yes	The users numeric ID.
	`amount`	int or float	Yes	The point amount to adjust the balance with. This value must be properly formatted. If the point type does not use decimals, then the amount can not use decimals either.
	`entry`	string	Yes	The log entry of the transaction. This is what is shown to users in the logs.
	`ref_id`	int	No	Optional reference ID to save with the log entry.
	`data`	string or array	No	Optional data to save with the log entry. This can be a string or an array. Note that arrays will be serialized before saved to the log.
	`type`	string	No	The point type to adjust and log the transaction under. Should only be used if the point type is not the current point type set in this class.
}

Example 1: Give a user 10 points and log it as a “Donation“.

$user_id = 1;
$amount  = 10;
$mycred  = mycred();

if ( ! $mycred->exclude_user( $user_id ) )
	$mycred->add_creds(
		'donation',
		$user_id,
		$amount,
		'%plural% donation'
	);

	Variable	Type	Required	Description
public function `add_to_log( $ref = '', $user_id = '', $amount = '', $entry = '', $ref_id = '', $data = '', $type = MYCRED_DEFAULT_TYPE_KEY )` {
	Description:	Adds a log entry to the myCRED Log database table. Used by add_creds().
	`ref`	string	Yes	The reference to log the transaction under.
	`user_id`	int	Yes	The users numeric ID.
	`amount`	int or float	Yes	The point amount. If the point type does not use decimals, then the amount can not use decimals either.
	`entry`	string	Yes	The log entry of the transaction.
	`ref_id`	int	No	Optional reference ID to save with the log entry.
	`data`	string or array	No	Optional data to save with the log entry. This can be a string or an array. Note that arrays will be serialized before saved to the log.
	`type`	string	No	The point type to adjust and log the transaction under. Should only be used if the point type is not the current point type set in this class.
}

	Variable	Type	Required	Description
public function `update_log_entry( $entry_id = NULL, $data = array(), $prep = array() )` {
	Description:	Updates a given log entry. Requires that you have the log entries ID. Added in 1.6.7
	`entry_id`	int	Yes	The unique log entry ID.
	`data`	array	Yes	An array of new data. Uses the $wpdb->update().
	`prep`	array	Yes	An array of formats to be mapped to each of the values in $data..
}

	Variable	Type	Required	Description
public function `has_entry( $reference = NULL, $ref_id = NULL, $user_id = NULL, $data = NULL, $type = NULL )` {
	Description:	Checks if a specific log entry exists in the database.
	`reference`	string	No	The reference to check.
	`ref_id`	int	No	The reference id to check.
	`user_id`	int	No	The user id to check.
	`data`	string	No	The data to check for. If you know the data is an array, make sure this value is a serialized array.
	`type`	string	No	The point type to check.
}