379 lines
8.5 KiB
PHP
Executable file
379 lines
8.5 KiB
PHP
Executable file
<?php
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namespace b8;
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use b8\Exception\HttpException;
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use b8\Database,
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b8\Model;
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abstract class Store
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{
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protected $modelName = null;
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protected $tableName = null;
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protected $primaryKey = null;
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/**
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* @return \b8\Model
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*/
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abstract public function getByPrimaryKey($key, $useConnection = 'read');
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public function getWhere($where = array(), $limit = 25, $offset = 0, $joins = array(), $order = array(), $manualJoins = array(), $group = null, $manualWheres = array(), $whereType = 'AND')
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{
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$query = 'SELECT ' . $this->tableName . '.* FROM ' . $this->tableName;
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$countQuery = 'SELECT COUNT(*) AS cnt FROM ' . $this->tableName;
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$wheres = array();
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$params = array();
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foreach($where as $key => $value)
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{
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$key = $this->fieldCheck($key);
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if(!is_array($value))
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{
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$params[] = $value;
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$wheres[] = $key . ' = ?';
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}
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else
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{
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if(isset($value['operator']))
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{
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if(is_array($value['value']))
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{
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if($value['operator'] == 'between')
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{
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$params[] = $value['value'][0];
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$params[] = $value['value'][1];
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$wheres[] = $key . ' BETWEEN ? AND ?';
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}
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elseif($value['operator'] == 'IN')
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{
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$in = array();
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foreach($value['value'] as $item)
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{
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$params[] = $item;
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$in[] = '?';
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}
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$wheres[] = $key . ' IN (' . implode(', ', $in) . ') ';
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}
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else
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{
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$ors = array();
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foreach($value['value'] as $item)
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{
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if($item == 'null')
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{
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switch($value['operator'])
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{
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case '!=':
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$ors[] = $key . ' IS NOT NULL';
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break;
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case '==':
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default:
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$ors[] = $key . ' IS NULL';
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break;
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}
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}
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else
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{
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$params[] = $item;
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$ors[] = $this->fieldCheck($key) . ' ' . $value['operator'] . ' ?';
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}
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}
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$wheres[] = '(' . implode(' OR ', $ors) . ')';
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}
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}
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else
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{
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if($value['operator'] == 'like')
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{
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$params[] = '%' . $value['value'] . '%';
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$wheres[] = $key . ' ' . $value['operator'] . ' ?';
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}
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else
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{
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if($value['value'] === 'null')
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{
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switch($value['operator'])
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{
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case '!=':
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$wheres[] = $key . ' IS NOT NULL';
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break;
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case '==':
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default:
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$wheres[] = $key . ' IS NULL';
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break;
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}
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}
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else
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{
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$params[] = $value['value'];
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$wheres[] = $key . ' ' . $value['operator'] . ' ?';
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}
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}
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}
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}
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else
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{
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$wheres[] = $key . ' IN (' . implode(', ', array_map(array(Database::getConnection('read'), 'quote'), $value)) . ')';
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}
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}
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}
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if(count($joins))
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{
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foreach($joins as $table => $join)
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{
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$query .= ' LEFT JOIN ' . $table . ' ' . $join['alias'] . ' ON ' . $join['on'] . ' ';
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$countQuery .= ' LEFT JOIN ' . $table . ' ' . $join['alias'] . ' ON ' . $join['on'] . ' ';
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}
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}
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if(count($manualJoins))
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{
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foreach($manualJoins as $join)
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{
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$query .= ' ' . $join . ' ';
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$countQuery .= ' ' . $join . ' ';
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}
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}
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$hasWhere = false;
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if(count($wheres))
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{
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$hasWhere = true;
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$query .= ' WHERE (' . implode(' ' . $whereType . ' ', $wheres) . ')';
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$countQuery .= ' WHERE (' . implode(' ' . $whereType . ' ', $wheres) . ')';
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}
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if(count($manualWheres))
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{
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foreach($manualWheres as $where)
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{
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if(!$hasWhere)
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{
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$hasWhere = true;
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$query .= ' WHERE ';
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$countQuery .= ' WHERE ';
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}
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else
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{
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$query .= ' ' . $where['type'] . ' ';
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$countQuery .= ' ' . $where['type'] . ' ';
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}
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$query .= ' ' . $where['query'];
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$countQuery .= ' ' . $where['query'];
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if(isset($where['params']))
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{
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foreach($where['params'] as $param)
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{
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$params[] = $param;
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}
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}
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}
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}
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if(!is_null($group))
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{
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$query .= ' GROUP BY ' . $group . ' ';
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}
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if(count($order))
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{
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$orders = array();
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if(is_string($order) && $order == 'rand')
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{
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$query .= ' ORDER BY RAND() ';
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}
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else
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{
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foreach($order as $key => $value)
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{
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$orders[] = $this->fieldCheck($key) . ' ' . $value;
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}
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$query .= ' ORDER BY ' . implode(', ', $orders);
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}
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}
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if($limit)
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{
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$query .= ' LIMIT ' . $limit;
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}
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if($offset)
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{
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$query .= ' OFFSET ' . $offset;
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}
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try
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{
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$stmt = Database::getConnection('read')->prepare($countQuery);
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$stmt->execute($params);
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$res = $stmt->fetch(\PDO::FETCH_ASSOC);
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$count = (int)$res['cnt'];
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}
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catch(\PDOException $ex)
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{
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$count = 0;
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}
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try
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{
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$stmt = Database::getConnection('read')->prepare($query);
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$stmt->execute($params);
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$res = $stmt->fetchAll(\PDO::FETCH_ASSOC);
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$rtn = array();
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foreach($res as $data)
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{
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$rtn[] = new $this->modelName($data);
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}
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return array('items' => $rtn, 'count' => $count);
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}
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catch(\PDOException $ex)
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{
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throw $ex;
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}
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}
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public function save(Model $obj, $saveAllColumns = false)
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{
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if(!isset($this->primaryKey))
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{
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throw new HttpException\BadRequestException('Save not implemented for this store.');
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}
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if(!($obj instanceof $this->modelName))
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{
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throw new HttpException\BadRequestException(get_class($obj) . ' is an invalid model type for this store.');
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}
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$data = $obj->getDataArray();
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if(isset($data[$this->primaryKey]))
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{
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$rtn = $this->saveByUpdate($obj, $saveAllColumns);
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}
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else
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{
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$rtn = $this->saveByInsert($obj, $saveAllColumns);
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}
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return $rtn;
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}
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public function saveByUpdate(Model $obj, $saveAllColumns = false)
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{
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$rtn = null;
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$data = $obj->getDataArray();
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$modified = ($saveAllColumns) ? array_keys($data) : $obj->getModified();
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$updates = array();
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$update_params = array();
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foreach($modified as $key)
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{
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$updates[] = $key . ' = :' . $key;
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$update_params[] = array($key, $data[$key]);
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}
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if(count($updates))
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{
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$qs = 'UPDATE ' . $this->tableName . '
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SET ' . implode(', ', $updates) . '
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WHERE ' . $this->primaryKey . ' = :primaryKey';
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$q = Database::getConnection('write')->prepare($qs);
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foreach($update_params as $update_param)
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{
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$q->bindValue(':' . $update_param[0], $update_param[1]);
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}
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$q->bindValue(':primaryKey', $data[$this->primaryKey]);
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$q->execute();
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$rtn = $this->getByPrimaryKey($data[$this->primaryKey], 'write');
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}
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else
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{
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$rtn = $obj;
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}
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return $rtn;
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}
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public function saveByInsert(Model $obj, $saveAllColumns = false)
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{
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$rtn = null;
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$data = $obj->getDataArray();
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$modified = ($saveAllColumns) ? array_keys($data) : $obj->getModified();
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$cols = array();
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$values = array();
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$qParams = array();
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foreach($modified as $key)
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{
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$cols[] = $key;
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$values[] = ':' . $key;
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$qParams[':' . $key] = $data[$key];
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}
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if(count($cols))
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{
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$qs = 'INSERT INTO ' . $this->tableName . ' (' . implode(', ', $cols) . ') VALUES (' . implode(', ', $values) . ')';
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$q = Database::getConnection('write')->prepare($qs);
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if($q->execute($qParams))
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{
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$id = !empty($data[$this->primaryKey]) ? $data[$this->primaryKey] : Database::getConnection('write')->lastInsertId();
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$rtn = $this->getByPrimaryKey($id, 'write');
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}
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}
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return $rtn;
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}
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public function delete(Model $obj)
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{
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if(!isset($this->primaryKey))
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{
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throw new HttpException\BadRequestException('Delete not implemented for this store.');
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}
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if(!($obj instanceof $this->modelName))
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{
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throw new HttpException\BadRequestException(get_class($obj) . ' is an invalid model type for this store.');
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}
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$data = $obj->getDataArray();
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$q = Database::getConnection('write')->prepare('DELETE FROM ' . $this->tableName . ' WHERE ' . $this->primaryKey . ' = :primaryKey');
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$q->bindValue(':primaryKey', $data[$this->primaryKey]);
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$q->execute();
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return true;
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}
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/**
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*
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*/
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protected function fieldCheck($field)
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{
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if(empty($field))
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{
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throw new HttpException('You cannot have an empty field name.');
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}
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if(strpos($field, '.') === false)
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{
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return $this->tableName . '.' . $field;
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}
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return $field;
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}
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}
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