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Code Issues Releases Wiki Activity

Update FieldtypeMulti to isolate some existing functionality into dedicated methods for better reusability

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This commit is contained in:
Ryan Cramer
2020-04-10 12:38:21 -04:00
parent 9a1f842437
commit ac7c9da4d1
1 changed files with 80 additions and 22 deletions
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100
wire/core/FieldtypeMulti.php
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@@ -42,6 +42,14 @@ abstract class FieldtypeMulti extends Fieldtype {
*/
protected static $getMatchQueryCount = 0;
/**
* Do we currently have a locked table?
*
* @var bool
*
*/
protected $lockedTable = false;
/**
* Modify the default schema provided by Fieldtype to include a 'sort' field, and integrate that into the primary key.
*
@@ -619,18 +627,11 @@ abstract class FieldtypeMulti extends Fieldtype {
$hasInserts = false;
$sort = null;
$numSaved = 0;
$locked = false;
// sleep the values for storage
$sleepValue = $this->sleepValue($page, $field, $value);
try {
// attempt lock if possible
if($database->exec("LOCK TABLES `$table` WRITE"));
$locked = true;
} catch(\Exception $e) {
// nothing ever happened, it's all just stories
}
$this->lockForWriting($field);
if(isset($schema['sort'])) {
// determine if there are any INSERTs and what the next sort value(s) should be
@@ -642,12 +643,7 @@ abstract class FieldtypeMulti extends Fieldtype {
}
if($hasInserts) {
// determine max sort value for new items inserted
$sql = "SELECT MAX(sort) FROM `$table` WHERE pages_id=:pages_id";
$query = $database->prepare($sql);
$query->bindValue(':pages_id', $page->id, \PDO::PARAM_INT);
$query->execute();
$sort = (int) $query->fetchColumn();
$query->closeCursor();
$sort = $this->getMaxColumnValue($page, $field, 'sort');
}
}
@@ -693,17 +689,79 @@ abstract class FieldtypeMulti extends Fieldtype {
}
}
if($locked) {
try {
$database->exec("UNLOCK TABLES");
} catch(\Exception $e) {
// indeed there is no thing here
}
}
$this->unlockForWriting();
return $numSaved;
}
/**
* Lock field table for writing
*
* @param Field $field
* @return bool
*
*/
protected function lockForWriting(Field $field) {
$database = $this->wire('database');
$table = $database->escapeTable($field->getTable());
$locked = false;
try {
// attempt lock if possible
if($database->exec("LOCK TABLES `$table` WRITE")) {
$this->lockedTable = true;
$locked = true;
}
} catch(\Exception $e) {
// ignore
}
return $locked;
}
/**
* Unlock for writing
*
* @return bool
*
*/
protected function unlockForWriting() {
$result = false;
if($this->lockedTable) try {
$this->wire('database')->exec("UNLOCK TABLES");
$this->lockedTable = false;
$result = true;
} catch(\Exception $e) {
// ignore
}
return $result;
}
/**
* Get max value of column for given Page and Field
*
* @param Page $page
* @param Field $field
* @param string $column
* @return int|mixed
* @throws WireException
* @since 3.0.154
*
*/
protected function getMaxColumnValue(Page $page, Field $field, $column) {
// determine max sort value for new items inserted
/** @var WireDatabasePDO $database */
$database = $this->wire('database');
$table = $database->escapeTable($field->getTable());
$column = $database->escapeCol($column);
$sql = "SELECT MAX($column) FROM `$table` WHERE pages_id=:pages_id";
$query = $database->prepare($sql);
$query->bindValue(':pages_id', $page->id, \PDO::PARAM_INT);
$query->execute();
$value = $query->fetchColumn();
$query->closeCursor();
return $value;
}
/**
* Delete specific rows (for tables with single primary key)
*