103 lines
3.0 KiB
PHP
103 lines
3.0 KiB
PHP
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<?php
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/**
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* Class file for EwwwDB
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*
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* EwwwDB contains methods for working with the ewwwio_images table.
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*
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* @link https://ewww.io
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* @package EWWW_Image_Optimizer
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* DB class extension to for working with the ewwwio_images table.
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*
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* Provides functions needed to ensure that all data in the table is in utf8 format.
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*
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* @see wpdb
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*/
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class EwwwDB extends wpdb {
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/**
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* Ensures use of some variant of utf8 for interacting with the images table.
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*/
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public function init_charset() {
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parent::init_charset();
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if ( strpos( $this->charset, 'utf8' ) === false ) {
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$this->charset = 'utf8';
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}
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}
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/**
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* Inserts multiple records into the table at once.
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*
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* Takes an associative array and creates a database record for each array item, using a single
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* MySQL query. Column names are extracted from the key names of the first record.
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*
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* @param string $table Name of table to be used in INSERT statement.
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* @param array $data Records to be inserted into table. Default none. Accepts an array of arrays,
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* see example below.
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* @param array $format List of formats for values in each record. Each sub-array should have the
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* same number of items as $formats. Default '%s'. Accepts '%s', '%d', '%f'.
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* @return int|false Number of rows affected or false on error.
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*/
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public function insert_multiple( $table, $data, $format ) {
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if ( empty( $table ) || ! ewww_image_optimizer_iterable( $data ) || ! ewww_image_optimizer_iterable( $format ) ) {
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return false;
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}
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/*
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* Given a multi-dimensional array like so:
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* array(
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* [0] =>
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* 'path' => '/some/image/path/here.jpg'
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* 'gallery' => 'something'
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* 'orig_size => 5678
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* 'attachment_id => 2
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* 'resize' => 'thumb'
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* 'pending' => 1
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* [1] =>
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* 'path' => '/some/image/path/another.jpg'
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* 'gallery' => 'something'
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* 'orig_size => 1234
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* 'attachment_id => 3
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* 'resize' => 'full'
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* 'pending' => 1
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* )
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*/
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ewwwio_debug_message( 'we have records to store via ewwwdb' );
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$multi_formats = array();
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$values = array();
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foreach ( $data as $record ) {
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if ( ! ewww_image_optimizer_iterable( $record ) ) {
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continue;
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}
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$record = $this->process_fields( $table, $record, $format );
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if ( false === $record ) {
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return false;
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}
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$formats = array();
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foreach ( $record as $value ) {
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if ( is_null( $value['value'] ) ) {
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$formats[] = 'NULL';
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continue;
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}
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$formats[] = $value['format'];
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$values[] = $value['value'];
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}
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$multi_formats[] = '(' . implode( ',', $formats ) . ')';
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}
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$first = reset( $data );
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$fields = '`' . implode( '`, `', array_keys( $first ) ) . '`';
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$multi_formats = implode( ',', $multi_formats );
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$this->check_current_query = false;
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return $this->query( $this->prepare( "INSERT INTO `$table` ($fields) VALUES $multi_formats", $values ) );
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}
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}
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