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Merge pull request #6224 from annando/dba-delete-contact

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Avoid duplicated contacts, improve contact deletion, avoid memory issues
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Hypolite Petovan 2018-12-02 16:16:59 -05:00 • committed by GitHub
commit c5558cc459
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4 changed files with 74 additions and 73 deletions
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121
src/Database/DBA.php
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@ -1044,12 +1044,11 @@ class DBA
* @param array $options
* - cascade: If true we delete records in other tables that depend on the one we're deleting through
* relations (default: true)
* @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 successful? When $in_process is set: deletion data
* @return boolean was the delete successful?
*/
public static function delete($table, array $conditions, array $options = [], $in_process = false, array &$callstack = [])
public static function delete($table, array $conditions, array $options = [], array &$callstack = [])
{
if (empty($table) || empty($conditions)) {
Logger::log('Table and conditions have to be set');
@ -1098,22 +1097,18 @@ class DBA
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, [$rel_field => array_values($conditions)[0]], $options, true, $callstack);
$commands = array_merge($commands, $retval);
$retval = self::delete($rel_table, [$rel_field => array_values($conditions)[0]], $options, $callstack);
}
}
// We quit when this key already exists in the callstack.
} elseif (!isset($callstack[$qkey])) {
$callstack[$qkey] = true;
// Fetch all rows that are to be deleted
$data = self::select($table, [$field], $conditions);
while ($row = self::fetch($data)) {
// Now we accumulate the delete commands
$retval = self::delete($table, [$field => $row[$field]], $options, true, $callstack);
$commands = array_merge($commands, $retval);
self::delete($table, [$field => $row[$field]], $options, $callstack);
}
self::close($data);
@ -1123,74 +1118,70 @@ class DBA
}
}
if (!$in_process) {
// Now we finalize the process
$do_transaction = !self::$in_transaction;
// Now we finalize the process
$do_transaction = !self::$in_transaction;
if ($do_transaction) {
self::transaction();
if ($do_transaction) {
self::transaction();
}
$compacted = [];
$counter = [];
foreach ($commands AS $command) {
$conditions = $command['conditions'];
reset($conditions);
$first_key = key($conditions);
$condition_string = self::buildCondition($conditions);
if ((count($command['conditions']) > 1) || is_int($first_key)) {
$sql = "DELETE FROM `" . $command['table'] . "`" . $condition_string;
Logger::log(self::replaceParameters($sql, $conditions), Logger::DATA);
if (!self::e($sql, $conditions)) {
if ($do_transaction) {
self::rollback();
}
return false;
}
} else {
$key_table = $command['table'];
$key_condition = array_keys($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
$i = isset($counter[$key_table][$key_condition]) ? $counter[$key_table][$key_condition] : 0;
if (isset($compacted[$key_table][$key_condition][$i]) && count($compacted[$key_table][$key_condition][$i]) > 100) {
++$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) . ");";
$compacted = [];
$counter = [];
Logger::log(self::replaceParameters($sql, $field_values), Logger::DATA);
foreach ($commands AS $command) {
$conditions = $command['conditions'];
reset($conditions);
$first_key = key($conditions);
$condition_string = self::buildCondition($conditions);
if ((count($command['conditions']) > 1) || is_int($first_key)) {
$sql = "DELETE FROM `" . $command['table'] . "`" . $condition_string;
Logger::log(self::replaceParameters($sql, $conditions), Logger::DATA);
if (!self::e($sql, $conditions)) {
if (!self::e($sql, $field_values)) {
if ($do_transaction) {
self::rollback();
}
return false;
}
} else {
$key_table = $command['table'];
$key_condition = array_keys($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
$i = isset($counter[$key_table][$key_condition]) ? $counter[$key_table][$key_condition] : 0;
if (isset($compacted[$key_table][$key_condition][$i]) && count($compacted[$key_table][$key_condition][$i]) > 100) {
++$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) . ");";
Logger::log(self::replaceParameters($sql, $field_values), Logger::DATA);
if (!self::e($sql, $field_values)) {
if ($do_transaction) {
self::rollback();
}
return false;
}
}
}
}
if ($do_transaction) {
self::commit();
}
return true;
}
return $commands;
if ($do_transaction) {
self::commit();
}
return true;
}
/**