File filter.php

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<?php 
/**
 * Order Delivery Date Pro for WooCommerce
 *
 * Handles the display and filtering of delivery details in WooCommerce->Orders
 *
 * @author      Tyche Softwares
 * @package     Order-Delivery-Date-Pro-for-WooCommerce/Filter
 * @since       2.7
 */

include_once( dirname( __FILE__ ) . '/orddd-common.php' );

/**
 * orddd_filter Class
 *
 * @class orddd_filter
 */
class orddd_filter {

    /**
     * This function is used to add the custom plugin column 
     * Delivery Date on WooCommerce->Orders page.
     * 
     * @param array $columns - The Existing columns for the WooCommerce->Orders table.
     * @return array $new_columns - Updated list of column names.
     * 
     * @hook manage_edit-shop_order_columns
     * @since 2.7
     */
    public static function orddd_woocommerce_order_delivery_date_column( $columns ) {
        // get all columns up to and excluding the 'order_actions' column
        $new_columns = array();
        foreach ( $columns as $name => $value ) {
            if ( $name == 'order_actions' ) {
                prev( $columns );
                break;
            }
            $new_columns[ $name ] = $value;
        }
        // inject our columns
        $new_columns[ 'order_delivery_date' ] = get_option( 'orddd_delivery_date_field_label' );
        // add the 'order_actions' column, and any others
        foreach ( $columns as $name => $value ) {
            $new_columns[ $name ] = $value;
        }
        return $new_columns;
    }

    /**
     * This function echoes the delivery details to the 
     * 'Delivery Date' column on WooCommerce->Orders for each order.
     * 
     * @param string $column - Column Name
     * 
     * @hook manage_shop_order_posts_custom_column
     * @since 2.7
     */
    public static function orddd_woocommerce_custom_column_value( $column ) {
        global $post, $orddd_date_formats;
        if ( $column == 'order_delivery_date' ) {
            $delivery_date_formatted = orddd_common::orddd_get_order_delivery_date( $post->ID  );
            echo $delivery_date_formatted;
            
            $time_slot = orddd_common::orddd_get_order_timeslot( $post->ID );
            echo '<p>' . $time_slot . '</p>';
        }   
        do_action( 'orddd_add_value_to_woocommerce_custom_column', $column, $post->ID );
    }

    /**
     * Adds the Delivery Date column in WooCommerce->Orders
     * as a sortable column. Mentions the meta key present in
     * post meta table that can be used for sorting.
     * 
     * @param array $columns - List of sortable columns
     * @return array - Sortable columns with the plugin column included.array
     * 
     * @hook manage_edit-shop_order_sortable_columns
     * @since 2.7
     */
    public static function orddd_woocommerce_custom_column_value_sort( $columns ) {
        $columns[ 'order_delivery_date' ] = '_orddd_timestamp';
        return $columns;
    }

    /**
     * Delivery date column orderby. 
     * 
     * Helps WooCommerce understand using the value based on which a column should be sorted.
     * The delivery date is stored as a timestamp in the _orddd_timestamp variable in wp_postmeta
     * 
     * @param array $vars - Query variables
     * @return array $vars - Updated Query variables.
     * 
     * @hook request
     * @since 2.7
     */
    public static function orddd_woocommerce_delivery_date_orderby( $vars ) {
        global $typenow;
        if( get_option( "orddd_show_column_on_orders_page_check" ) == 'on' ) {
            $delivery_field_label = '_orddd_timestamp';
            if ( isset( $vars[ 'orderby' ] ) ) {
                if ( $delivery_field_label == $vars[ 'orderby' ] ) {
                    $sorting_vars = array( 'orderby'  => array( 'meta_value_num' => $vars[ 'order' ], 'date' => 'ASC' ) );
                    if ( !isset( $_GET[ 'order_delivery_date_filter' ] ) || $_GET['order_delivery_date_filter'] == '') {
                        $sorting_vars[ 'meta_query' ] = array(  'relation' => 'OR', 
                            array (
                                'key'     => $delivery_field_label, 
                                'value'   => '', 
                                'compare' => 'NOT EXISTS'
                            ),
                            array (
                                    'key'     => $delivery_field_label,
                                    'compare' => 'EXISTS'
                                )
                            );
                    }
                    $vars = array_merge( $vars, $sorting_vars );
                }
            } elseif( get_option( "orddd_enable_default_sorting_of_column" ) == 'on' ) {
                if ( 'shop_order' != $typenow ) {
                    return $vars;
                }
                $sorting_vars = array(
                    'orderby'  => array( 'meta_value_num' => 'DESC', 'date' => 'ASC' ),
                    'order'    => 'DESC' );
                if ( !isset( $_GET[ 'order_delivery_date_filter' ] ) || $_GET[ 'order_delivery_date_filter'     ] == '' ) {
                    $sorting_vars[ 'meta_query' ] = array( 'relation' => 'OR', 
                            array (
                                    'key'     => $delivery_field_label, 
                                    'value'   => '', 
                                    'compare' => 'NOT EXISTS'
                                ),
                            array (
                                    'key'     => $delivery_field_label,
                                    'compare' => 'EXISTS'
                                )
                        );
                }
                $vars = array_merge( $vars, $sorting_vars );
            }
        }
        return $vars;
    }
    
    /**
     * Prints a dropdown to filter the orders based on Delivery Dates
     * in WooCommerce->Orders.
     * 
     * @hook restrict_manage_posts
     * @since 2.7
     */
    public static function orddd_restrict_orders() {
        global $typenow, $wpdb, $wp_locale;

        if ( 'shop_order' != $typenow ) {
            return;
        }

        $javascript = '';
        $filter_field_name = 'order_delivery_date_filter';
        $db_field_name = '_orddd_timestamp';
    
        $months = $wpdb->get_results( $wpdb->prepare( "
        SELECT YEAR( FROM_UNIXTIME( meta_value ) ) as year, MONTH( FROM_UNIXTIME( meta_value ) ) as month, CAST( meta_value AS UNSIGNED ) AS meta_value_num
        FROM " . $wpdb->postmeta . "
        WHERE meta_key = %s
        GROUP BY year, month
        ORDER BY meta_value_num DESC", $db_field_name ) );
        $month_count = count( $months );

        if ( ! $month_count || ( 1 == $month_count && 0 == $months[0]->month ) ) {
            return;
        }

        if ( isset( $_GET[ $filter_field_name ] ) && $_GET[ $filter_field_name ] == 'today' ) {
            $m = $_GET[ $filter_field_name ];
        } else if ( isset( $_GET[ $filter_field_name ] ) && $_GET[ $filter_field_name ] == 'tomorrow' ) {
            $m = $_GET[ $filter_field_name ];
        } else {
            $m = isset( $_GET[ $filter_field_name ] ) ? (int) $_GET[ $filter_field_name ] : 0;
        }
        
        $current_time = current_time( 'timestamp' );
        $today_option = array( 'year' => date( 'Y', $current_time ), 'month' => 'today', 'meta_value_num' => $current_time );

        $tomorrow_date = date( 'Y-m-d', strtotime( '+1 day', $current_time ) );
        $tomorrow_time = strtotime( $tomorrow_date );
        $tomorrow_option = array( 'year' => date( 'Y', $tomorrow_time ), 'month' => 'tomorrow', 'meta_value_num' => $tomorrow_time );
        array_unshift( $months, (object)$today_option, (object)$tomorrow_option );
        ?>
        <select name="order_delivery_date_filter" id="order_delivery_date_filter" class="orddd_filter">
            <option value=""><?php _e( "Show all Delivery Dates", "order-delivery-date" ); ?></option>
            <?php
            foreach ( $months as $arc_row ) {
                if ( $arc_row->month != 'today' && $arc_row->month != 'tomorrow' ) {
                    if ( 0 == $arc_row->year || '1969' == $arc_row->year ) {
                        continue;
                    }
                    $month = zeroise( $arc_row->month, 2 );
                    $year = $arc_row->year;
                    printf( '<option %s value="%s">%s</option>',
                        selected( $m, $year . $month, false ),
                        esc_attr( $arc_row->year . $month ),
                        /* translators: 1: month name, 2: 4-digit year */
                        sprintf( __( '%1$s %2$d', 'order-delivery-date' ), $wp_locale->get_month( $month ), $year )
                    );
                } else {
                    $arc_row->year = $year = '';
                    $month = $arc_row->month;
                    printf( '<option %s value="%s">%s</option>',
                        selected( $m, $arc_row->month, false ),
                        $arc_row->month,
                        ucfirst( $arc_row->month )
                    );
                }
            }
        ?></select><?php

        $javascript .= "jQuery( 'select#order_delivery_date_filter' ).select2();";
        wc_enqueue_js( $javascript );
    }
    
    /**
     * Filter the orders displayed in WooCommerce->Orders
     * based on the Delivery Dates filter dropdown.
     *
     * @param array $vars - Query Variables
     * @return array $vars - Updated Query Variables
     * 
     * @hook request
     * @since 2.7
     */
    public static function orddd_add_filterable_field( $vars ) {
        global $typenow;
        if ( 'shop_order' != $typenow ) {
            return $vars;
        }
        $meta_queries = array( 'relation' => 'AND' );

        // if the field is filterable and selected by the user
        if ( isset( $_GET[ 'order_delivery_date_filter' ] ) && $_GET[ 'order_delivery_date_filter' ] ) {
            $date = $_GET[ 'order_delivery_date_filter' ];
            if ( $date == 'today' ) {
                // from the start to the end of the month
                $current_time = current_time( 'timestamp' );
                $current_date = date( 'Y-m-d', $current_time );
                 
                $from_date = date( 'Y-m-d H:i:s', strtotime( $current_date . '00:00:00' ) );
                $to_date = date( 'Y-m-d H:i:s', strtotime( $current_date . '23:59:59' ) );
                
                $meta_queries[] = array(
                    'key'     => '_orddd_timestamp',
                    'value'   => array( strtotime( $from_date ), strtotime( $to_date ) ),
                    'type'    => 'NUMERIC',
                    'compare' => 'BETWEEN'
                );
            } else if ( $date == 'tomorrow' ) {             
                $current_time = current_time( 'timestamp' );
                $current_date = date( 'Y-m-d', strtotime('+1 day', $current_time ) );
                 
                $from_date = date( 'Y-m-d H:i:s', strtotime( $current_date . '00:00:00' ) );
                $to_date = date( 'Y-m-d H:i:s', strtotime( $current_date . '23:59:59' ) );
                
                $meta_queries[] = array(
                    'key'     => '_orddd_timestamp',
                    'value'   => array( strtotime( $from_date ), strtotime( $to_date ) ),
                    'type'    => 'NUMERIC',
                    'compare' => 'BETWEEN'
                );
            } else {
                // from the start to the end of the month
                $from_date = substr( $date, 0, 4 ) . '-' . substr( $date, 4, 2 ) . '-01';
                $to_date   = substr( $date, 0, 4 ) . '-' . substr( $date, 4, 2 ) . '-' . date( 't', strtotime( $from_date ) );
                $meta_queries[] = array(
                    'key'     => '_orddd_timestamp',
                    'value'   => array( strtotime( $from_date.' 00:00:00' ), strtotime( $to_date .' 23:59:59' ) ),
                    'type'    => 'NUMERIC',
                    'compare' => 'BETWEEN'
                );
            }
        }
        // update the query vars with our meta filter queries, if needed
        if ( count( $meta_queries ) > 1 ) {
            $vars = array_merge(
                $vars,
                array( 'meta_query' => $meta_queries )
            );
        }
        return $vars;
    }

    /** 
     * Adds the Delivery Date field to the set of searchable fields so that
     * the orders can be searched based on Delivery details.
     *
     * @param array $search_fields - Array of post meta fields to search by 
     * @return array $search_fields - Updated array of post meta fields to search by 
     *  
     * @hook woocommerce_shop_order_search_fields
     * @since 2.7 
     */
    public static function orddd_add_search_fields( $search_fields ) {
        array_push( $search_fields, get_option( 'orddd_delivery_date_field_label' ) );
        return $search_fields;
    }

    /**
     * Echoes the Delivery date on WooCommerce->Orders->Edit Order page.
     * 
     * @param WC_Order $order - Order object
     * 
     * @hook woocommerce_admin_order_data_after_billing_address
     *       woocommerce_admin_order_data_after_shipping_address
     * @since 2.7      
     */
    public static function orddd_display_delivery_date_admin_order_meta( $order ) {
        global $orddd_date_formats;
        
        if( version_compare( get_option( 'woocommerce_version' ), '3.0.0', ">=" ) ) {            
            $order_id = $order->get_id();
        } else {
            $order_id = $order->id;
        }
        
        $delivery_date_formatted = orddd_common::orddd_get_order_delivery_date( $order_id );
        
        $post_array = array();
        $post_array[ 'billing_country' ] = get_post_meta( $order_id, '_billing_country', true );
        $post_array[ 'billing_state' ] = get_post_meta( $order_id, '_billing_state', true );
        $post_array[ 'billing_postcode' ] = get_post_meta( $order_id, '_billing_postcode', true );
        $post_array[ 'ID' ] = $order_id;
        $zone_details = explode( "-", orddd_common::orddd_get_zone_id( $post_array, false ) );

        $zone_id = $zone_details[ 0 ];

        $shipping_method = orddd_common::orddd_get_order_shipping_method( $order_id );
        if( '' != $zone_id ) {
             if( false !== strpos( $shipping_method, 'usps' ) ) {
                $shipping_method = $zone_id . ":" . $shipping_method;
            }
            if( false !== strpos( $shipping_method, 'fedex' ) ) {
                $shipping_method = $zone_id . ":" . $shipping_method;
            }
        }

        $product_category = orddd_common::orddd_get_order_product_category( $order_id );
        $shipping_class = orddd_common::orddd_get_product_shipping_class( $order_id );

        $field_date_label = orddd_common::orddd_get_delivery_date_field_label( $shipping_method, $product_category, $shipping_class ); 
        
        if( $delivery_date_formatted != '' ) {
            echo '<p><strong>' . __( $field_date_label, 'order-delivery-date' ) . ': </strong>' . $delivery_date_formatted;
        }
    }
    
    /**
     * Echoes the Delivery time on WooCommerce->Orders->Edit Order page.
     * 
     * @param WC_Order $order - Order object
     * 
     * @hook woocommerce_admin_order_data_after_billing_address
     *       woocommerce_admin_order_data_after_shipping_address
     * @since 2.7      
     */
    public static function orddd_display_time_slot_admin_order_meta( $order ) {
        if( version_compare( get_option( 'woocommerce_version' ), '3.0.0', ">=" ) ) {            
            $order_id = $order->get_id();
        } else {
            $order_id = $order->id;
        }
        $time_slot = orddd_common::orddd_get_order_timeslot( $order_id );

        $post_array = array();
        $post_array[ 'billing_country' ] = get_post_meta( $order_id, '_billing_country', true );
        $post_array[ 'billing_state' ] = get_post_meta( $order_id, '_billing_state', true );
        $post_array[ 'billing_postcode' ] = get_post_meta( $order_id, '_billing_postcode', true );
        $post_array[ 'ID' ] = $order_id;
        $zone_details = explode( "-", orddd_common::orddd_get_zone_id( $post_array, false ) );

        $zone_id = $zone_details[ 0 ];

        $shipping_method = orddd_common::orddd_get_order_shipping_method( $order_id );
        if( '' != $zone_id ) {
             if( false !== strpos( $shipping_method, 'usps' ) ) {
                $shipping_method = $zone_id . ":" . $shipping_method;
            }
            if( false !== strpos( $shipping_method, 'fedex' ) ) {
                $shipping_method = $zone_id . ":" . $shipping_method;
            }
        }

        $product_category = orddd_common::orddd_get_order_product_category( $order_id );
        $shipping_class = orddd_common::orddd_get_product_shipping_class( $order_id );

        $time_field_label = orddd_common::orddd_get_delivery_time_field_label( $shipping_method, $product_category, $shipping_class ); 

        if ( $time_slot != '' && $time_slot != '' ) {
            echo '<p>' . $time_field_label . ': ' . $time_slot . '</p>';
        }
    }
}
$orddd_filter = new orddd_filter();
?>

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