99 lines
3.4 KiB
PHP
99 lines
3.4 KiB
PHP
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<?php
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namespace Rails\ActiveRecord\Adapter\Sqlite;
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use Rails\ActiveRecord\Adapter\Exception;
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use Rails\ActiveRecord\Adapter\AbstractQueryBuilder;
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class QueryBuilder extends AbstractQueryBuilder
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{
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public function calculate_found_rows()
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{
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$this->query->except('limit')->except('offset')->except('select')->select('COUNT(*) as count_all');
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$this->_build_sql();
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if ($stmt = $this->connection->executeSql($this->_params)) {
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$rows = $stmt->fetchAll();
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if (isset($rows[0]['count_all']))
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return $rows[0]['count_all'];
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}
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}
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protected function _build_sql()
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{
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$query = $this->query;
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$params = [];
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$sql = 'SELECT';
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if ($query->distinct)
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$sql .= ' DISTINCT';
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$sql .= ' ' . ($query->select ? implode(', ', $query->select) : '`' . $query->from . '`.*');
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$sql .= " FROM `" . $query->from . "`";
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$sql .= ' ' . implode(' ', $query->joins);
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if ($where = $this->_build_where_clause($query)) {
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$sql .= " WHERE " . $where[0];
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$params = $where[1];
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unset($where);
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}
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if ($query->group)
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$sql .= ' GROUP BY ' . implode(', ', $query->group);
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if ($query->order)
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$sql .= ' ORDER BY ' . implode(', ', $query->order);
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if ($query->having) {
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$sql .= ' HAVING ' . implode(' ', $query->having);
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$params = array_merge($params, $query->having_params);
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}
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if ($query->offset && $query->limit)
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$sql .= ' LIMIT ' . $query->offset . ', ' . $query->limit;
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elseif ($query->limit)
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$sql .= ' LIMIT ' . $query->limit;
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array_unshift($params, $sql);
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$this->_params = $params;
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}
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private function _build_where_clause($query) {
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if (!$query->where)
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return;
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$where = $where_params = [];
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$param_count = 0;
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foreach ($query->where as $condition) {
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# Case: ["foo" => $foo, "bar" => $bar];
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if (is_array($condition)) {
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foreach ($condition as $column => $value) {
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$where[] = '`' . $column . '` = ?';
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$where_params[] = $value;
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}
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} else {
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if ($count = substr_count($condition, '?')) {
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foreach (range(0, $count - 1) as $i) {
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if (!isset($query->where_params[$param_count]))
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throw new Exception\RuntimeException(sprintf("Value for question mark placeholder for WHERE clause part wasn't found (%s)", $condition));
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if (is_array($query->where_params[$param_count])) {
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$condition = preg_replace('/\?/', implode(', ', array_fill(0, count($query->where_params[$param_count]), '?')), $condition, 1);
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}
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$where_params[] = $query->where_params[$param_count];
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$param_count++;
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}
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} elseif ($count = substr_count($condition, ':')) {
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$where_params = $query->where_params;
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}
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$where[] = $condition;
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}
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}
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return [implode(' AND ', $where), $where_params];
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}
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}
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