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Add access modifier (`public`) to all default widgets' class methods. See #27881, #22234. Built from https://develop.svn.wordpress.org/trunk@28532 git-svn-id: http://core.svn.wordpress.org/trunk@28358 1a063a9b-81f0-0310-95a4-ce76da25c4cd
446 lines
16 KiB
PHP
446 lines
16 KiB
PHP
<?php
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/**
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* WP_Date_Query will generate a MySQL WHERE clause for the specified date-based parameters.
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*
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* Initialize the class by passing an array of arrays of parameters.
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*
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* @link http://codex.wordpress.org/Function_Reference/WP_Query Codex page.
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*
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* @since 3.7.0
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*/
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class WP_Date_Query {
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/**
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* List of date queries.
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*
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* @since 3.7.0
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* @access public
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* @var array
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*/
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public $queries = array();
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/**
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* The relation between the queries. Can be either 'AND' or 'OR' and can be changed via the query arguments.
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*
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* @since 3.7.0
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* @access public
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* @var string
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*/
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public $relation = 'AND';
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/**
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* The column to query against. Can be changed via the query arguments.
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*
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* @since 3.7.0
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* @access public
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* @var string
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*/
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public $column = 'post_date';
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/**
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* The value comparison operator. Can be changed via the query arguments.
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*
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* @since 3.7.0
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* @access public
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* @var array
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*/
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public $compare = '=';
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/**
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* Constructor.
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*
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* @param array $date_query {
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* One or more associative arrays of date query parameters.
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*
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* @type array {
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* @type string $column Optional. The column to query against. If undefined, inherits the value of
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* the $default_column parameter. Default 'post_date'. Accepts 'post_date',
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* 'post_date_gmt', 'post_modified','post_modified_gmt', 'comment_date',
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* 'comment_date_gmt'.
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* @type string $compare Optional. The comparison operator.
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* Default '='. Accepts '=', '!=', '>', '>=', '<', '<=', 'IN', 'NOT IN',
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* 'BETWEEN', 'NOT BETWEEN'.
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* @type string $relation Optional. The boolean relationship between the date queryies.
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* Default 'OR'. Accepts 'OR', 'AND'.
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* @type array {
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* @type string|array $before Optional. Date to retrieve posts before. Accepts strtotime()-compatible
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* string, or array of 'year', 'month', 'day' values. {
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*
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* @type string $year The four-digit year. Default empty. Accepts any four-digit year.
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* @type string $month Optional when passing array.The month of the year.
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* Default (string:empty)|(array:1). Accepts numbers 1-12.
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* @type string $day Optional when passing array.The day of the month.
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* Default (string:empty)|(array:1). Accepts numbers 1-31.
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* }
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* @type string|array $after Optional. Date to retrieve posts after. Accepts strtotime()-compatible
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* string, or array of 'year', 'month', 'day' values. {
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*
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* @type string $year The four-digit year. Default empty. Accepts any four-digit year.
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* @type string $month Optional when passing array.The month of the year.
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* Default (string:empty)|(array:12). Accepts numbers 1-12.
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* @type string $day Optional when passing array.The day of the month.
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* Default (string:empty)|(array:last day of month). Accepts numbers 1-31.
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* }
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* @type string $column Optional. Used to add a clause comparing a column other than the column
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* specified in the top-level $column paramater. Default is the value
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* of top-level $column. Accepts 'post_date', 'post_date_gmt',
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* 'post_modified', 'post_modified_gmt', 'comment_date', 'comment_date_gmt'.
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* @type string $compare Optional. The comparison operator. Default '='. Accepts '=', '!=',
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* '>', '>=', '<', '<=', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN'.
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* @type bool $inclusive Optional. Include results from dates specified in 'before' or 'after'.
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* Default. Accepts.
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* @type int $year Optional. The four-digit year number. Default empty. Accepts any
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* four-digit year.
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* @type int $month Optional. The two-digit month number. Default empty. Accepts numbers 1-12.
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* @type int $week Optional. The week number of the year. Default empty. Accepts numbers 0-53.
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* @type int $dayofyear Optional. The day number of the year. Default empty. Accepts numbers 1-366.
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* @type int $day Optional. The day of the month. Default empty. Accepts numbers 1-31.
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* @type int $dayofweek Optional. The day number of the week. Default empty. Accepts numbers 1-7.
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* @type int $hour Optional. The hour of the day. Default empty. Accepts numbers 0-23.
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* @type int $minute Optional. The minute of the hour. Default empty. Accepts numbers 0-60.
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* @type int $second Optional. The second of the minute. Default empty. Accepts numbers 0-60.
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* }
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* }
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* }
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* @param array $default_column Optional. Default column to query against. Default 'post_date'.
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* Accepts 'post_date', 'post_date_gmt', 'post_modified', 'post_modified_gmt',
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* 'comment_date', 'comment_date_gmt'.
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*/
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public function __construct( $date_query, $default_column = 'post_date' ) {
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if ( empty( $date_query ) || ! is_array( $date_query ) )
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return;
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if ( isset( $date_query['relation'] ) && strtoupper( $date_query['relation'] ) == 'OR' )
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$this->relation = 'OR';
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else
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$this->relation = 'AND';
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if ( ! empty( $date_query['column'] ) )
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$this->column = esc_sql( $date_query['column'] );
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else
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$this->column = esc_sql( $default_column );
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$this->column = $this->validate_column( $this->column );
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$this->compare = $this->get_compare( $date_query );
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// If an array of arrays wasn't passed, fix it
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if ( ! isset( $date_query[0] ) )
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$date_query = array( $date_query );
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$this->queries = array();
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foreach ( $date_query as $key => $query ) {
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if ( ! is_array( $query ) )
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continue;
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$this->queries[$key] = $query;
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}
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}
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/**
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* Determines and validates what comparison operator to use.
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*
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* @since 3.7.0
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* @access public
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*
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* @param array $query A date query or a date subquery
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* @return string The comparison operator
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*/
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public function get_compare( $query ) {
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if ( ! empty( $query['compare'] ) && in_array( $query['compare'], array( '=', '!=', '>', '>=', '<', '<=', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) )
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return strtoupper( $query['compare'] );
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return $this->compare;
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}
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/**
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* Validates a column name parameter.
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*
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* @since 3.7.0
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* @access public
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*
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* @param string $column The user-supplied column name.
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* @return string A validated column name value.
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*/
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public function validate_column( $column ) {
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$valid_columns = array(
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'post_date', 'post_date_gmt', 'post_modified',
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'post_modified_gmt', 'comment_date', 'comment_date_gmt'
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);
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/**
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* Filter the list of valid date query columns.
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*
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* @since 3.7.0
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*
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* @param array $valid_columns An array of valid date query columns. Defaults are 'post_date', 'post_date_gmt',
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* 'post_modified', 'post_modified_gmt', 'comment_date', 'comment_date_gmt'
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*/
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if ( ! in_array( $column, apply_filters( 'date_query_valid_columns', $valid_columns ) ) )
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$column = 'post_date';
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return $column;
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}
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/**
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* Turns an array of date query parameters into a MySQL string.
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*
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* @since 3.7.0
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* @access public
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*
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* @return string MySQL WHERE parameters
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*/
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public function get_sql() {
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// The parts of the final query
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$where = array();
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foreach ( $this->queries as $key => $query ) {
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$where_parts = $this->get_sql_for_subquery( $query );
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if ( $where_parts ) {
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// Combine the parts of this subquery into a single string
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$where[ $key ] = '( ' . implode( ' AND ', $where_parts ) . ' )';
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}
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}
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// Combine the subquery strings into a single string
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if ( $where )
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$where = ' AND ( ' . implode( " {$this->relation} ", $where ) . ' )';
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else
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$where = '';
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/**
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* Filter the date query WHERE clause.
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*
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* @since 3.7.0
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*
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* @param string $where WHERE clause of the date query.
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* @param WP_Date_Query $this The WP_Date_Query instance.
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*/
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return apply_filters( 'get_date_sql', $where, $this );
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}
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/**
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* Turns a single date subquery into pieces for a WHERE clause.
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*
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* @since 3.7.0
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* return array
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*/
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protected function get_sql_for_subquery( $query ) {
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global $wpdb;
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// The sub-parts of a $where part
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$where_parts = array();
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$column = ( ! empty( $query['column'] ) ) ? esc_sql( $query['column'] ) : $this->column;
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$column = $this->validate_column( $column );
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$compare = $this->get_compare( $query );
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$lt = '<';
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$gt = '>';
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if ( ! empty( $query['inclusive'] ) ) {
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$lt .= '=';
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$gt .= '=';
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}
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// Range queries
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if ( ! empty( $query['after'] ) )
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$where_parts[] = $wpdb->prepare( "$column $gt %s", $this->build_mysql_datetime( $query['after'], true ) );
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if ( ! empty( $query['before'] ) )
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$where_parts[] = $wpdb->prepare( "$column $lt %s", $this->build_mysql_datetime( $query['before'], false ) );
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// Specific value queries
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if ( isset( $query['year'] ) && $value = $this->build_value( $compare, $query['year'] ) )
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$where_parts[] = "YEAR( $column ) $compare $value";
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if ( isset( $query['month'] ) && $value = $this->build_value( $compare, $query['month'] ) )
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$where_parts[] = "MONTH( $column ) $compare $value";
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else if ( isset( $query['monthnum'] ) && $value = $this->build_value( $compare, $query['monthnum'] ) )
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$where_parts[] = "MONTH( $column ) $compare $value";
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if ( isset( $query['week'] ) && false !== ( $value = $this->build_value( $compare, $query['week'] ) ) )
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$where_parts[] = _wp_mysql_week( $column ) . " $compare $value";
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else if ( isset( $query['w'] ) && false !== ( $value = $this->build_value( $compare, $query['w'] ) ) )
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$where_parts[] = _wp_mysql_week( $column ) . " $compare $value";
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if ( isset( $query['dayofyear'] ) && $value = $this->build_value( $compare, $query['dayofyear'] ) )
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$where_parts[] = "DAYOFYEAR( $column ) $compare $value";
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if ( isset( $query['day'] ) && $value = $this->build_value( $compare, $query['day'] ) )
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$where_parts[] = "DAYOFMONTH( $column ) $compare $value";
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if ( isset( $query['dayofweek'] ) && $value = $this->build_value( $compare, $query['dayofweek'] ) )
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$where_parts[] = "DAYOFWEEK( $column ) $compare $value";
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if ( isset( $query['hour'] ) || isset( $query['minute'] ) || isset( $query['second'] ) ) {
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// Avoid notices
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foreach ( array( 'hour', 'minute', 'second' ) as $unit ) {
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if ( ! isset( $query[$unit] ) ) {
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$query[$unit] = null;
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}
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}
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if ( $time_query = $this->build_time_query( $column, $compare, $query['hour'], $query['minute'], $query['second'] ) ) {
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$where_parts[] = $time_query;
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}
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}
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return $where_parts;
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}
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/**
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* Builds and validates a value string based on the comparison operator.
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*
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* @since 3.7.0
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* @access public
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*
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* @param string $compare The compare operator to use
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* @param string|array $value The value
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* @return string|int|false The value to be used in SQL or false on error.
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*/
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public function build_value( $compare, $value ) {
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if ( ! isset( $value ) )
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return false;
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switch ( $compare ) {
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case 'IN':
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case 'NOT IN':
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return '(' . implode( ',', array_map( 'intval', (array) $value ) ) . ')';
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case 'BETWEEN':
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case 'NOT BETWEEN':
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if ( ! is_array( $value ) || 2 != count( $value ) || ! isset( $value[0] ) || ! isset( $value[1] ) )
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$value = array( $value, $value );
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$value = array_map( 'intval', $value );
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return $value[0] . ' AND ' . $value[1];
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default;
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return (int) $value;
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}
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}
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/**
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* Builds a MySQL format date/time based on some query parameters.
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*
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* You can pass an array of values (year, month, etc.) with missing parameter values being defaulted to
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* either the maximum or minimum values (controlled by the $default_to parameter). Alternatively you can
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* pass a string that that will be run through strtotime().
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*
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* @since 3.7.0
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* @access public
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*
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* @param string|array $datetime An array of parameters or a strotime() string
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* @param string $default_to Controls what values default to if they are missing from $datetime. Pass "min" or "max".
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* @return string|false A MySQL format date/time or false on failure
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*/
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public function build_mysql_datetime( $datetime, $default_to_max = false ) {
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$now = current_time( 'timestamp' );
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if ( ! is_array( $datetime ) ) {
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// @todo Timezone issues here possibly
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return gmdate( 'Y-m-d H:i:s', strtotime( $datetime, $now ) );
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}
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$datetime = array_map( 'absint', $datetime );
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if ( ! isset( $datetime['year'] ) )
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$datetime['year'] = gmdate( 'Y', $now );
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if ( ! isset( $datetime['month'] ) )
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$datetime['month'] = ( $default_to_max ) ? 12 : 1;
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if ( ! isset( $datetime['day'] ) )
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$datetime['day'] = ( $default_to_max ) ? (int) date( 't', mktime( 0, 0, 0, $datetime['month'], 1, $datetime['year'] ) ) : 1;
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if ( ! isset( $datetime['hour'] ) )
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$datetime['hour'] = ( $default_to_max ) ? 23 : 0;
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if ( ! isset( $datetime['minute'] ) )
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$datetime['minute'] = ( $default_to_max ) ? 59 : 0;
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if ( ! isset( $datetime['second'] ) )
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$datetime['second'] = ( $default_to_max ) ? 59 : 0;
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return sprintf( '%04d-%02d-%02d %02d:%02d:%02d', $datetime['year'], $datetime['month'], $datetime['day'], $datetime['hour'], $datetime['minute'], $datetime['second'] );
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}
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/**
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* Builds a query string for comparing time values (hour, minute, second).
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*
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* If just hour, minute, or second is set than a normal comparison will be done.
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* However if multiple values are passed, a pseudo-decimal time will be created
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* in order to be able to accurately compare against.
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*
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* @since 3.7.0
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* @access public
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*
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* @param string $column The column to query against. Needs to be pre-validated!
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* @param string $compare The comparison operator. Needs to be pre-validated!
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* @param int|null $hour Optional. An hour value (0-23).
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* @param int|null $minute Optional. A minute value (0-59).
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* @param int|null $second Optional. A second value (0-59).
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* @return string|false A query part or false on failure.
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*/
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public function build_time_query( $column, $compare, $hour = null, $minute = null, $second = null ) {
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global $wpdb;
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// Have to have at least one
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if ( ! isset( $hour ) && ! isset( $minute ) && ! isset( $second ) )
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return false;
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// Complex combined queries aren't supported for multi-value queries
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if ( in_array( $compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) {
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$return = array();
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if ( isset( $hour ) && false !== ( $value = $this->build_value( $compare, $hour ) ) )
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$return[] = "HOUR( $column ) $compare $value";
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if ( isset( $minute ) && false !== ( $value = $this->build_value( $compare, $minute ) ) )
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$return[] = "MINUTE( $column ) $compare $value";
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if ( isset( $second ) && false !== ( $value = $this->build_value( $compare, $second ) ) )
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$return[] = "SECOND( $column ) $compare $value";
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return implode( ' AND ', $return );
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}
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// Cases where just one unit is set
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if ( isset( $hour ) && ! isset( $minute ) && ! isset( $second ) && false !== ( $value = $this->build_value( $compare, $hour ) ) ) {
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return "HOUR( $column ) $compare $value";
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} elseif ( ! isset( $hour ) && isset( $minute ) && ! isset( $second ) && false !== ( $value = $this->build_value( $compare, $minute ) ) ) {
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return "MINUTE( $column ) $compare $value";
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} elseif ( ! isset( $hour ) && ! isset( $minute ) && isset( $second ) && false !== ( $value = $this->build_value( $compare, $second ) ) ) {
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return "SECOND( $column ) $compare $value";
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}
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// Single units were already handled. Since hour & second isn't allowed, minute must to be set.
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if ( ! isset( $minute ) )
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return false;
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$format = $time = '';
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// Hour
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if ( $hour ) {
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$format .= '%H.';
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$time .= sprintf( '%02d', $hour ) . '.';
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} else {
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$format .= '0.';
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$time .= '0.';
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}
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// Minute
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$format .= '%i';
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$time .= sprintf( '%02d', $minute );
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if ( isset( $second ) ) {
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$format .= '%s';
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$time .= sprintf( '%02d', $second );
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}
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return $wpdb->prepare( "DATE_FORMAT( $column, %s ) $compare %f", $format, $time );
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}
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}
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