/**
* Fetches the first row
- *
- * Please use dba::selectOne or dba::exists whenever this is possible.
+ *
+ * Please use dba::selectFirst or dba::exists whenever this is possible.
*
* @brief Fetches the first row
* @param string $sql SQL statement
/**
* @brief Delete a row from a table
*
- * @param string $table Table name
- * @param array $param parameter array
- * @param boolean $in_process Internal use: Only do a commit after the last delete
- * @param array $callstack Internal use: prevent endless loops
+ * @param string $table Table name
+ * @param array $conditions Field condition(s)
+ * @param boolean $in_process Internal use: Only do a commit after the last delete
+ * @param array $callstack Internal use: prevent endless loops
*
- * @return boolean|array was the delete successfull? When $in_process is set: deletion data
+ * @return boolean|array was the delete successful? When $in_process is set: deletion data
*/
- public static function delete($table, $param, $in_process = false, &$callstack = array()) {
-
- if (empty($table) || empty($param)) {
- logger('Table and condition have to be set');
+ public static function delete($table, array $conditions, $in_process = false, array &$callstack = [])
+ {
+ if (empty($table) || empty($conditions)) {
+ logger('Table and conditions have to be set');
return false;
}
- $commands = array();
+ $commands = [];
// Create a key for the loop prevention
- $key = $table.':'.implode(':', array_keys($param)).':'.implode(':', $param);
+ $key = $table . ':' . implode(':', array_keys($conditions)) . ':' . implode(':', $conditions);
// We quit when this key already exists in the callstack.
if (isset($callstack[$key])) {
$table = self::escape($table);
- $commands[$key] = array('table' => $table, 'param' => $param);
+ $commands[$key] = ['table' => $table, 'conditions' => $conditions];
// To speed up the whole process we cache the table relations
if (count(self::$relation) == 0) {
$rel_def = array_values(self::$relation[$table])[0];
// Create a key for preventing double queries
- $qkey = $field.'-'.$table.':'.implode(':', array_keys($param)).':'.implode(':', $param);
+ $qkey = $field . '-' . $table . ':' . implode(':', array_keys($conditions)) . ':' . implode(':', $conditions);
// When the search field is the relation field, we don't need to fetch the rows
// This is useful when the leading record is already deleted in the frontend but the rest is done in the backend
- if ((count($param) == 1) && ($field == array_keys($param)[0])) {
+ if ((count($conditions) == 1) && ($field == array_keys($conditions)[0])) {
foreach ($rel_def AS $rel_table => $rel_fields) {
foreach ($rel_fields AS $rel_field) {
- $retval = self::delete($rel_table, array($rel_field => array_values($param)[0]), true, $callstack);
+ $retval = self::delete($rel_table, array($rel_field => array_values($conditions)[0]), true, $callstack);
$commands = array_merge($commands, $retval);
}
}
- // We quit when this key already exists in the callstack.
+ // We quit when this key already exists in the callstack.
} elseif (!isset($callstack[$qkey])) {
$callstack[$qkey] = true;
// Fetch all rows that are to be deleted
- $data = self::select($table, array($field), $param);
+ $data = self::select($table, array($field), $conditions);
while ($row = self::fetch($data)) {
// Now we accumulate the delete commands
self::transaction();
}
- $compacted = array();
- $counter = array();
+ $compacted = [];
+ $counter = [];
foreach ($commands AS $command) {
- $condition = $command['param'];
- $array_element = each($condition);
+ $conditions = $command['conditions'];
+ $array_element = each($conditions);
$array_key = $array_element['key'];
if (is_int($array_key)) {
- $condition_string = " WHERE ".array_shift($condition);
+ $condition_string = " WHERE " . array_shift($conditions);
} else {
- $condition_string = " WHERE `".implode("` = ? AND `", array_keys($condition))."` = ?";
+ $condition_string = " WHERE `" . implode("` = ? AND `", array_keys($conditions)) . "` = ?";
}
- if ((count($command['param']) > 1) || is_int($array_key)) {
- $sql = "DELETE FROM `".$command['table']."`".$condition_string;
- logger(self::replace_parameters($sql, $condition), LOGGER_DATA);
+ if ((count($command['conditions']) > 1) || is_int($array_key)) {
+ $sql = "DELETE FROM `" . $command['table'] . "`" . $condition_string;
+ logger(self::replace_parameters($sql, $conditions), LOGGER_DATA);
- if (!self::e($sql, $condition)) {
+ if (!self::e($sql, $conditions)) {
if ($do_transaction) {
self::rollback();
}
}
} else {
$key_table = $command['table'];
- $key_param = array_keys($command['param'])[0];
- $value = array_values($command['param'])[0];
+ $key_condition = array_keys($command['conditions'])[0];
+ $value = array_values($command['conditions'])[0];
// Split the SQL queries in chunks of 100 values
// We do the $i stuff here to make the code better readable
- $i = $counter[$key_table][$key_param];
- if (count($compacted[$key_table][$key_param][$i]) > 100) {
+ $i = $counter[$key_table][$key_condition];
+ if (count($compacted[$key_table][$key_condition][$i]) > 100) {
++$i;
}
- $compacted[$key_table][$key_param][$i][$value] = $value;
- $counter[$key_table][$key_param] = $i;
+ $compacted[$key_table][$key_condition][$i][$value] = $value;
+ $counter[$key_table][$key_condition] = $i;
}
}
foreach ($compacted AS $table => $values) {
foreach ($values AS $field => $field_value_list) {
foreach ($field_value_list AS $field_values) {
- $sql = "DELETE FROM `".$table."` WHERE `".$field."` IN (".
- substr(str_repeat("?, ", count($field_values)), 0, -2).");";
+ $sql = "DELETE FROM `" . $table . "` WHERE `" . $field . "` IN (" .
+ substr(str_repeat("?, ", count($field_values)), 0, -2) . ");";
logger(self::replace_parameters($sql, $field_values), LOGGER_DATA);
if (is_bool($old_fields)) {
$do_insert = $old_fields;
- $old_fields = self::selectOne($table, [], $condition);
+ $old_fields = self::selectFirst($table, [], $condition);
if (is_bool($old_fields)) {
if ($do_insert) {
/**
* Retrieve a single record from a table and returns it in an associative array
- *
+ *
* @brief Retrieve a single record from a table
* @param string $table
* @param array $fields
* @return bool|array
* @see dba::select
*/
- public static function selectOne($table, array $fields = [], array $condition = [], $params = [])
+ public static function selectFirst($table, array $fields = [], array $condition = [], $params = [])
{
$params['limit'] = 1;
$result = self::select($table, $fields, $condition, $params);
projects / friendica.git / blobdiff