/**
* Migrate method.
*
* @param boolean $version Version string.
*
* @return void
*/
public static function migrate($version = null)
{
$query = new Query();
$executed_migrations = Core\Utils::arrayFlatten($query->select('*')->from('migrations')->all());
$migrations_to_execute = array();
$dir = 'up';
if ($version) {
/* Migrate to specific version */
preg_match('/[0-9]{10}$/', $version, $matches);
if ($execute_to = $matches[0]) {
$migrations_to_execute = $query->select('*')->from('migrations')->where('version > ?', array($execute_to))->order('version', 'desc')->all();
if (count($migrations_to_execute) == 0) {
$migrations_to_execute = array_filter(self::$migrations, function ($item) use($executed_migrations, $execute_to) {
return !in_array($item['version'], $executed_migrations) && $item['version'] <= $execute_to;
});
} else {
$dir = 'down';
}
}
} else {
/* Execute all new migrations */
$migrations_to_execute = array_reverse(array_filter(self::$migrations, function ($item) use($executed_migrations) {
return !in_array($item['version'], $executed_migrations);
}));
}
foreach ($migrations_to_execute as $item) {
DB\Migrate::$dir($item['version']);
}
}
/**
* Builds a sql query.
*
* @param DB\Query $query SQL Query.
*
* @throws \DomainException DB Adapter does not support the required JOIN type.
*
* @return string
*/
private function buildSql(DB\Query $query)
{
$sql = array();
if ($query->type === 'select') {
$sql[] = 'SELECT';
$sql[] = $query->db_fields === 'all' ? '*' : (is_array($query->db_fields) ? implode(',', $query->db_fields) : $query->db_fields);
$sql[] = 'FROM';
$sql[] = $query->table;
if ($query->join) {
foreach ($query->join as $join) {
if (!in_array($join['type'], self::getSupportedJoinTypes(), true)) {
throw new \DomainException('DB Adapter not supporting the required JOIN type:' . $join['type']);
}
$sql[] = $join['type'];
$sql[] = 'JOIN';
$sql[] = Core\Config()->DB['tables_prefix'] . $join['table'];
if ($join['condition']) {
$sql[] = 'ON (' . $join['condition'] . ')';
}
}
}
if ($query->where) {
$sql[] = 'WHERE';
$sql[] = implode(' AND ', array_map(function ($item) {
return '(' . $item . ')';
}, $query->where));
}
if ($query->order) {
$sql[] = 'ORDER BY';
$sql[] = implode(', ', array_map(function ($item) {
return "{$item['field']} {$item['direction']}";
}, $query->order));
}
if ($query->limit) {
$sql[] = 'LIMIT';
$sql[] = $query->limit;
if ($query->offset) {
$sql[] = 'OFFSET';
$sql[] = $query->offset;
}
}
} elseif ($query->type === 'insert') {
$sql[] = 'INSERT IGNORE INTO';
$sql[] = $query->table;
$sql[] = '(' . implode(',', $query->db_fields) . ')';
$sql[] = 'VALUES';
if (is_array(current($query->bind_params))) {
$sql[] = implode(',', array_map(function ($item) {
return '(' . implode(',', array_map(function () {
return '?';
}, $item)) . ')';
}, $query->bind_params));
$query->bind_params = Core\Utils::arrayFlatten($query->bind_params);
} else {
$sql[] = '(' . implode(',', array_map(function () {
return '?';
}, $query->bind_params)) . ')';
}
} elseif ($query->type === 'update') {
$sql[] = 'UPDATE';
$sql[] = $query->table;
$sql[] = 'SET';
$sql[] = implode(',', array_map(function ($item) {
return $item . ' = ?';
}, $query->db_fields));
$sql[] = 'WHERE';
$sql[] = implode(' AND ', array_map(function ($item) {
return '(' . $item . ')';
}, $query->where));
} elseif ($query->type === 'remove') {
$sql[] = 'DELETE FROM';
$sql[] = $query->table;
$sql[] = 'WHERE';
$sql[] = implode(' AND ', array_map(function ($item) {
return '(' . $item . ')';
}, $query->where));
}
return implode(' ', $sql);
}
/**
* Builds the SQL part of the query.
*
* @param DB\Query $query Query object.
*
* @throws \DomainException DB Adapter does not support the required JOIN type.
*
* @return string
*/
private function buildSql(DB\Query $query)
{
$sql = array();
if ($query->type === 'select') {
$sql[] = 'SELECT';
$sql[] = $query->db_fields === 'all' ? '*' : (is_array($query->db_fields) ? implode(',', $query->db_fields) : $query->db_fields);
$sql[] = 'FROM';
$sql[] = $query->table;
if ($query->join) {
foreach ($query->join as $join) {
if (!in_array($join['type'], self::getSupportedJoinTypes(), true)) {
throw new \DomainException('DB Adapter does not support the JOIN type:' . $join['type']);
}
$sql[] = $join['type'];
$sql[] = 'JOIN';
$sql[] = Core\Config()->DB['tables_prefix'] . $join['table'];
if ($join['condition']) {
$sql[] = 'ON (' . $join['condition'] . ')';
}
}
}
if ($query->where) {
$sql[] = 'WHERE';
$sql[] = implode(' AND ', array_map(function ($item) {
return '(' . $item . ')';
}, $query->where));
}
if ($query->order) {
$sql[] = 'ORDER BY';
$sql[] = implode(', ', array_map(function ($item) {
return "{$item['field']} {$item['direction']}";
}, $query->order));
}
if ($query->limit) {
$sql[] = 'LIMIT';
$sql[] = $query->limit;
if ($query->offset) {
$sql[] = 'OFFSET';
$sql[] = $query->offset;
}
}
} elseif ($query->type === 'insert') {
$sql[] = 'INSERT IGNORE INTO';
$sql[] = $query->table;
$sql[] = '(' . implode(',', $query->db_fields) . ')';
$sql[] = 'VALUES';
if (isset($query->bind_params[0]) && is_array($query->bind_params[0])) {
$sql[] = implode(',', array_map(function ($item) {
return '(' . implode(',', array_map(function () {
return '?';
}, $item)) . ')';
}, $query->bind_params));
$query->bind_params = Core\Utils::arrayFlatten($query->bind_params);
} else {
$sql[] = '(' . implode(',', array_map(function () {
return '?';
}, $query->bind_params)) . ')';
}
} elseif ($query->type === 'update') {
$sql[] = 'UPDATE';
$sql[] = $query->table;
$sql[] = 'SET';
$sql[] = implode(',', array_map(function ($item) {
return $item . ' = ?';
}, $query->db_fields));
$sql[] = 'WHERE';
$sql[] = implode(' AND ', array_map(function ($item) {
return '(' . $item . ')';
}, $query->where));
} elseif ($query->type === 'remove') {
$sql[] = 'DELETE FROM';
$sql[] = $query->table;
$sql[] = 'WHERE';
$sql[] = implode(' AND ', array_map(function ($item) {
return '(' . $item . ')';
}, $query->where));
} elseif ($query->type === 'create_table') {
$sql[] = 'CREATE TABLE IF NOT EXISTS';
$sql[] = $query->table;
$fields = array();
foreach ($query->db_fields as $field => $attributes) {
$is_primary_key = false;
$attrs = $this->convertAttributes($attributes);
if ($pos = array_search('pk', $attrs)) {
unset($attrs[$pos]);
$is_primary_key = true;
}
$fields[] = $field . ' ' . implode(' ', $attrs);
if ($is_primary_key) {
$fields[] = 'PRIMARY KEY(' . $field . ')';
}
}
$sql[] = '(' . implode(',', $fields) . ')';
$sql[] = 'ENGINE ' . $query->table_engine;
} elseif ($query->type === 'drop_table') {
$sql[] = 'DROP TABLE ' . $query->table;
} elseif ($query->type === 'add_columns') {
$sql[] = 'ALTER TABLE';
$sql[] = $query->table;
$sql[] = 'ADD COLUMN';
$fields = array();
foreach ($query->db_fields as $field => $attributes) {
$is_primary_key = false;
$attrs = $this->convertAttributes($attributes);
if ($pos = array_search('pk', $attrs)) {
unset($attrs[$pos]);
$is_primary_key = true;
}
$fields[] = $field . ' ' . implode(' ', $attrs);
if ($is_primary_key) {
$fields[] = 'PRIMARY KEY(' . $field . ')';
}
}
$sql[] = '(' . implode(',', $fields) . ')';
} elseif ($query->type === 'drop_columns') {
$sql[] = 'ALTER TABLE';
$sql[] = $query->table;
$cols = array();
foreach ($query->db_fields as $column) {
$cols[] = 'DROP COLUMN ' . $column;
}
$sql[] = implode(',', $cols);
}
return implode(' ', $sql);
}
/**
* Delete associated objects and records.
*
* @access private
*
* @return void
*/
private function deleteAssociations()
{
/* Delete objects of the habtm associations */
foreach ($this->hasAndBelongsToMany as $k => $rel) {
if (isset($this->{$k}) && is_array($this->{$k})) {
$association_table = $rel['table'];
$key = $rel['key'];
$relative_key = $rel['relative_key'];
$primary_key = $this->{static::$primaryKeyField};
/* Gets the id of the original associated objects */
$query = new DB\Query();
$result = Core\DB()->run($query->select($relative_key)->from($association_table)->where("{$key} = ?", array($primary_key)));
if ($result) {
$original_ids = Core\Utils::arrayFlatten($result);
/* Fills the ids of the current associated objects */
$passed_ids = array();
foreach ($this->{$k} as $item) {
$passed_ids[] = is_object($item) ? $item->id : $item;
}
/* Get the difference */
$to_delete = array_diff($original_ids, $passed_ids);
/* Delete if there are differences */
if (!empty($to_delete)) {
/* @TODO implement the "where in (smt., smt.)" in the DB driver */
Core\DB()->run($query->remove()->from($association_table)->where("{$key} = ?", array($primary_key))->where("{$relative_key} IN (" . implode(',', array_map(function () {
return '?';
}, $to_delete)) . ")", $to_delete));
}
}
}
}
}
