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Editing: class-entry-fields.php

<?php

/**
 * Entry fields DB class.
 *
 * @since 1.4.3
 */
class WPForms_Entry_Fields_Handler extends WPForms_DB {

/**
	 * Primary class constructor.
	 *
	 * @since 1.4.3
	 */
	public function __construct() {

global $wpdb;

$this->table_name  = $wpdb->prefix . 'wpforms_entry_fields';
		$this->primary_key = 'id';
		$this->type        = 'entry_fields';
	}

/**
	 * Get table columns.
	 *
	 * @since 1.4.3
	 */
	public function get_columns() {

return array(
			'id'       => '',
			'entry_id' => '%d',
			'form_id'  => '%d',
			'field_id' => '%d',
			'value'    => '%s',
			'date'     => '%s',
		);
	}

/**
	 * Default column values.
	 *
	 * @since 1.4.3
	 */
	public function get_column_defaults() {

return array(
			'entry_id' => '',
			'form_id'  => '',
			'field_id' => '',
			'value'    => '',
			'date'     => date( 'Y-m-d H:i:s' ),
		);
	}

/**
	 * Get entry meta rows from the database.
	 *
	 * @since 1.4.3
	 *
	 * @param array $args  Modify the query with these params.
	 * @param bool  $count Whether to return only the number of rows, or rows themselves.
	 *
	 * @return array|int
	 */
	public function get_fields( $args = array(), $count = false ) {

global $wpdb;

$defaults = array(
			'select'        => 'all',
			'number'        => 30,
			'offset'        => 0,
			'id'            => 0,
			'entry_id'      => 0,
			'form_id'       => 0,
			'field_id'      => 0,
			'value'         => '',
			'value_compare' => '',
			'date'          => '',
			'orderby'       => 'id',
			'order'         => 'DESC',
		);

$args = apply_filters(
			'wpforms_entry_fields_get_fields_args',
			wp_parse_args( $args, $defaults )
		);

if ( $args['number'] < 1 ) {
			$args['number'] = PHP_INT_MAX;
		}

/*
		 * Modify the SELECT.
		 */
		$select = '*';

$possible_select_values = apply_filters(
			'wpforms_entries_fields_get_fields_select',
			array(
				'all'       => '*',
				'entry_ids' => '`entry_id`',
			)
		);
		if ( array_key_exists( $args['select'], $possible_select_values ) ) {
			$select = esc_sql( $possible_select_values[ $args['select'] ] );
		}

/*
		 * Modify the WHERE.
		 */
		$where = array(
			'default' => '1=1',
		);

// Allowed int arg items.
		$keys = array( 'id', 'entry_id', 'form_id', 'field_id' );
		foreach ( $keys as $key ) {
			// Value `$args[ $key ]` can be a natural number and a numeric string.
			// We should skip empty string values, but continue working with '0'.
			if ( ! is_array( $args[ $key ] ) && ( ! is_numeric( $args[ $key ] ) || 0 === $args[ $key ] ) ) {
				continue;
			}

if ( is_array( $args[ $key ] ) && ! empty( $args[ $key ] ) ) {
				$ids = implode( ',', array_map( 'intval', $args[ $key ] ) );
			} else {
				$ids = (int) $args[ $key ];
			}

$where[ 'arg_' . $key ] = "`{$key}` IN ( {$ids} )";
		}

// Processing value and value_compare.
		if ( ! empty( $args['value'] ) ) {
			switch ( $args['value_compare'] ) {
				case '': // Preserving backward compatibility.
				case 'is':
					$where['arg_value'] = "`value` = '" . esc_sql( $args['value'] ) . "'";
					break;

case 'is_not':
					$where['arg_value'] = "`value` <> '" . esc_sql( $args['value'] ) . "'";
					break;

case 'contains':
					$where['arg_value'] = "`value` LIKE '%" . esc_sql( $args['value'] ) . "%'";
					break;

case 'contains_not':
					$where['arg_value'] = "`value` NOT LIKE '%" . esc_sql( $args['value'] ) . "%'";
					break;
			}
		} else {
			// Empty value should be allowed in case certain comparisons are used.
			if (
				$args['value_compare'] === 'is' ||
				$args['value_compare'] === 'is_not'
			) {
				switch ( $args['value_compare'] ) {
					case 'is':
						$where['arg_value'] = "`value` = ''";
						break;

case 'is_not':
						$where['arg_value'] = "`value` <> ''";
						break;
				}
			}
		}

// Process dates.
		if ( ! empty( $args['date'] ) ) {
			// We can pass array and treat it as a range from:to.
			if ( is_array( $args['date'] ) && count( $args['date'] ) === 2 ) {
				$date_start = wpforms_get_day_period_date( 'start_of_day', strtotime( $args['date'][0] ) );
				$date_end   = wpforms_get_day_period_date( 'end_of_day', strtotime( $args['date'][1] ) );

if ( ! empty( $date_start ) && ! empty( $date_end ) ) {
					$where['arg_date_start'] = "`date` >= '{$date_start}'";
					$where['arg_date_end']   = "`date` <= '{$date_end}'";
				}
			} elseif ( is_string( $args['date'] ) ) {
				/*
				 * If we pass the only string representation of a date -
				 * that means we want to get records of that day only.
				 * So we generate start and end MySQL dates for the specified day.
				 */
				$timestamp  = strtotime( $args['date'] );
				$date_start = wpforms_get_day_period_date( 'start_of_day', $timestamp );
				$date_end   = wpforms_get_day_period_date( 'end_of_day', $timestamp );

if ( ! empty( $date_start ) && ! empty( $date_end ) ) {
					$where['arg_date_start'] = "`date` >= '{$date_start}'";
					$where['arg_date_end']   = "`date` <= '{$date_end}'";
				}
			}
		}

// Give developers an ability to modify WHERE (unset clauses, add new, etc).
		$where     = (array) apply_filters( 'wpforms_entry_fields_get_fields_where', $where, $args );
		$where_sql = implode( ' AND ', $where );

/*
		 * Modify the ORDER BY.
		 */
		$args['orderby'] = ! array_key_exists( $args['orderby'], $this->get_columns() ) ? $this->primary_key : $args['orderby'];

if ( 'ASC' === strtoupper( $args['order'] ) ) {
			$args['order'] = 'ASC';
		} else {
			$args['order'] = 'DESC';
		}

/*
		 * Modify the OFFSET / NUMBER.
		 */
		$args['offset'] = absint( $args['offset'] );
		$args['number'] = absint( $args['number'] );

/*
		 * Retrieve the results.
		 */

if ( true === $count ) {

// @codingStandardsIgnoreStart
			$results = absint( $wpdb->get_var(
				"SELECT COUNT({$this->primary_key})
				FROM {$this->table_name}
				WHERE {$where_sql};"
			) );
			// @codingStandardsIgnoreEnd

} else {

// @codingStandardsIgnoreStart
			$results = $wpdb->get_results(
				"SELECT {$select}
				FROM {$this->table_name}
				WHERE {$where_sql}
				ORDER BY {$args['orderby']} {$args['order']}
				LIMIT {$args['offset']}, {$args['number']};"
			);
			// @codingStandardsIgnoreEnd
		}

return $results;
	}

/**
	 * Create custom entry meta database table.
	 *
	 * @since 1.4.3
	 */
	public function create_table() {

global $wpdb;

require_once ABSPATH . 'wp-admin/includes/upgrade.php';

$charset_collate = '';

if ( ! empty( $wpdb->charset ) ) {
			$charset_collate .= "DEFAULT CHARACTER SET {$wpdb->charset}";
		}
		if ( ! empty( $wpdb->collate ) ) {
			$charset_collate .= " COLLATE {$wpdb->collate}";
		}

$sql = "CREATE TABLE {$this->table_name} (
			id bigint(20) NOT NULL AUTO_INCREMENT,
			entry_id bigint(20) NOT NULL,
			form_id bigint(20) NOT NULL,
			field_id int(11) NOT NULL,
			value longtext NOT NULL,
			date datetime NOT NULL,
			PRIMARY KEY  (id),
			KEY entry_id (entry_id),
			KEY form_id (form_id),
			KEY field_id (field_id)
		) {$charset_collate};";

dbDelta( $sql );
	}
}