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<?php
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/**
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* @addtogroup database
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* @{
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*/
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/**
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* @file
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* Query code for MySQL embedded database engine.
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*/
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class InsertQuery_mysql extends InsertQuery {
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public function execute() {
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if (!$this->preExecute()) {
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return NULL;
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}
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// If we're selecting from a SelectQuery, finish building the query and
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// pass it back, as any remaining options are irrelevant.
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if (empty($this->fromQuery)) {
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$max_placeholder = 0;
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$values = array();
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foreach ($this->insertValues as $insert_values) {
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foreach ($insert_values as $value) {
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$values[':db_insert_placeholder_' . $max_placeholder++] = $value;
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}
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}
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}
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else {
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$values = $this->fromQuery->getArguments();
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}
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$last_insert_id = $this->connection->query((string) $this, $values, $this->queryOptions);
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// Re-initialize the values array so that we can re-use this query.
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$this->insertValues = array();
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return $last_insert_id;
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}
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public function __toString() {
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// Create a sanitized comment string to prepend to the query.
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$comments = $this->connection->makeComment($this->comments);
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// Default fields are always placed first for consistency.
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$insert_fields = array_merge($this->defaultFields, $this->insertFields);
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if (method_exists($this->connection, 'escapeFields')) {
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$insert_fields = $this->connection->escapeFields($insert_fields);
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}
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// If we're selecting from a SelectQuery, finish building the query and
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// pass it back, as any remaining options are irrelevant.
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if (!empty($this->fromQuery)) {
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$insert_fields_string = $insert_fields ? ' (' . implode(', ', $insert_fields) . ') ' : ' ';
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return $comments . 'INSERT INTO {' . $this->table . '}' . $insert_fields_string . $this->fromQuery;
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}
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$query = $comments . 'INSERT INTO {' . $this->table . '} (' . implode(', ', $insert_fields) . ') VALUES ';
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$max_placeholder = 0;
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$values = array();
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if (count($this->insertValues)) {
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foreach ($this->insertValues as $insert_values) {
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$placeholders = array();
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// Default fields aren't really placeholders, but this is the most convenient
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// way to handle them.
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$placeholders = array_pad($placeholders, count($this->defaultFields), 'default');
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$new_placeholder = $max_placeholder + count($insert_values);
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for ($i = $max_placeholder; $i < $new_placeholder; ++$i) {
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$placeholders[] = ':db_insert_placeholder_' . $i;
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}
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$max_placeholder = $new_placeholder;
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$values[] = '(' . implode(', ', $placeholders) . ')';
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}
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}
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else {
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// If there are no values, then this is a default-only query. We still need to handle that.
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$placeholders = array_fill(0, count($this->defaultFields), 'default');
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$values[] = '(' . implode(', ', $placeholders) . ')';
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}
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$query .= implode(', ', $values);
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return $query;
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}
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}
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class TruncateQuery_mysql extends TruncateQuery { }
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class UpdateQuery_mysql extends UpdateQuery {
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public function __toString() {
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if (method_exists($this->connection, 'escapeField')) {
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$escapedFields = array();
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foreach ($this->fields as $field => $data) {
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$field = $this->connection->escapeField($field);
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$escapedFields[$field] = $data;
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}
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$this->fields = $escapedFields;
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}
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return parent::__toString();
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}
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}
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/**
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* @} End of "addtogroup database".
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*/
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