本文整理汇总了PHP中xmldb_field::setPrevious方法的典型用法代码示例。如果您正苦于以下问题：PHP xmldb_field::setPrevious方法的具体用法？PHP xmldb_field::setPrevious怎么用？PHP xmldb_field::setPrevious使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类xmldb_field的用法示例。
在下文中一共展示了xmldb_field::setPrevious方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: addField
/**
* Add one field to the table, allowing to specify the desired order
* If it's not specified, then the field is added at the end
* @param xmldb_field $field
* @param xmldb_object $after
* @return xmldb_field
*/
public function addField($field, $after = null)
{
// Detect duplicates first
if ($this->getField($field->getName())) {
throw new coding_exception('Duplicate field ' . $field->getName() . ' specified in table ' . $this->getName());
}
// Calculate the previous and next fields
$prevfield = null;
$nextfield = null;
if (!$after) {
$allfields = $this->getFields();
if (!empty($allfields)) {
end($allfields);
$prevfield = $allfields[key($allfields)];
}
} else {
$prevfield = $this->getField($after);
}
if ($prevfield && $prevfield->getNext()) {
$nextfield = $this->getField($prevfield->getNext());
}
// Set current field previous and next attributes
if ($prevfield) {
$field->setPrevious($prevfield->getName());
$prevfield->setNext($field->getName());
}
if ($nextfield) {
$field->setNext($nextfield->getName());
$nextfield->setPrevious($field->getName());
}
// Some more attributes
$field->setLoaded(true);
$field->setChanged(true);
// Add the new field
$this->fields[] = $field;
// Reorder the field
$this->orderFields($this->fields);
// Recalculate the hash
$this->calculateHash(true);
// We have one new field, so the table has changed
$this->setChanged(true);
return $field;
}示例2: xmldb_hotpot_fix_previous_field
/**
* xmldb_hotpot_fix_previous_field
*
* @param xxx $dbman
* @param xmldb_table $table
* @param xmldb_field $field (passed by reference)
* @return void, but may update $field->previous
*/
function xmldb_hotpot_fix_previous_field($dbman, $table, &$field)
{
$previous = $field->getPrevious();
if (empty($previous) || $dbman->field_exists($table, $previous)) {
// $previous field exists - do nothing
} else {
// $previous field does not exist, so remove it
$field->setPrevious(null);
}
}