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<?php
namespace Laminas\Db\Metadata\Source;
use Exception;
use Laminas\Db\Adapter\Adapter;
use Laminas\Db\Metadata\MetadataInterface;
use Laminas\Db\Metadata\Object\ColumnObject;
use Laminas\Db\Metadata\Object\ConstraintKeyObject;
use Laminas\Db\Metadata\Object\ConstraintObject;
use Laminas\Db\Metadata\Object\TableObject;
use Laminas\Db\Metadata\Object\TriggerObject;
use Laminas\Db\Metadata\Object\ViewObject;
use function array_keys;
use function func_get_args;
use function str_replace;
abstract class AbstractSource implements MetadataInterface
{
public const DEFAULT_SCHEMA = '__DEFAULT_SCHEMA__';
/** @var Adapter */
protected $adapter;
/** @var string */
protected $defaultSchema;
/** @var array */
protected $data = [];
/**
* Constructor
*/
public function __construct(Adapter $adapter)
{
$this->adapter = $adapter;
$this->defaultSchema = $adapter->getCurrentSchema() ?: self::DEFAULT_SCHEMA;
}
/**
* Get schemas
*
* @return string[]
*/
public function getSchemas()
{
$this->loadSchemaData();
return $this->data['schemas'];
}
/**
* {@inheritdoc}
*/
public function getTableNames($schema = null, $includeViews = false)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadTableNameData($schema);
if ($includeViews) {
return array_keys($this->data['table_names'][$schema]);
}
$tableNames = [];
foreach ($this->data['table_names'][$schema] as $tableName => $data) {
if ('BASE TABLE' === $data['table_type']) {
$tableNames[] = $tableName;
}
}
return $tableNames;
}
/**
* {@inheritdoc}
*/
public function getTables($schema = null, $includeViews = false)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$tables = [];
foreach ($this->getTableNames($schema, $includeViews) as $tableName) {
$tables[] = $this->getTable($tableName, $schema);
}
return $tables;
}
/**
* {@inheritdoc}
*/
public function getTable($tableName, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadTableNameData($schema);
if (! isset($this->data['table_names'][$schema][$tableName])) {
throw new Exception('Table "' . $tableName . '" does not exist');
}
$data = $this->data['table_names'][$schema][$tableName];
switch ($data['table_type']) {
case 'BASE TABLE':
$table = new TableObject($tableName);
break;
case 'VIEW':
$table = new ViewObject($tableName);
$table->setViewDefinition($data['view_definition']);
$table->setCheckOption($data['check_option']);
$table->setIsUpdatable($data['is_updatable']);
break;
default:
throw new Exception(
'Table "' . $tableName . '" is of an unsupported type "' . $data['table_type'] . '"'
);
}
$table->setColumns($this->getColumns($tableName, $schema));
$table->setConstraints($this->getConstraints($tableName, $schema));
return $table;
}
/**
* {@inheritdoc}
*/
public function getViewNames($schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadTableNameData($schema);
$viewNames = [];
foreach ($this->data['table_names'][$schema] as $tableName => $data) {
if ('VIEW' === $data['table_type']) {
$viewNames[] = $tableName;
}
}
return $viewNames;
}
/**
* {@inheritdoc}
*/
public function getViews($schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$views = [];
foreach ($this->getViewNames($schema) as $tableName) {
$views[] = $this->getTable($tableName, $schema);
}
return $views;
}
/**
* {@inheritdoc}
*/
public function getView($viewName, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadTableNameData($schema);
$tableNames = $this->data['table_names'][$schema];
if (isset($tableNames[$viewName]) && 'VIEW' === $tableNames[$viewName]['table_type']) {
return $this->getTable($viewName, $schema);
}
throw new Exception('View "' . $viewName . '" does not exist');
}
/**
* {@inheritdoc}
*/
public function getColumnNames($table, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadColumnData($table, $schema);
if (! isset($this->data['columns'][$schema][$table])) {
throw new Exception('"' . $table . '" does not exist');
}
return array_keys($this->data['columns'][$schema][$table]);
}
/**
* {@inheritdoc}
*/
public function getColumns($table, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadColumnData($table, $schema);
$columns = [];
foreach ($this->getColumnNames($table, $schema) as $columnName) {
$columns[] = $this->getColumn($columnName, $table, $schema);
}
return $columns;
}
/**
* {@inheritdoc}
*/
public function getColumn($columnName, $table, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadColumnData($table, $schema);
if (! isset($this->data['columns'][$schema][$table][$columnName])) {
throw new Exception('A column by that name was not found.');
}
$info = $this->data['columns'][$schema][$table][$columnName];
$column = new ColumnObject($columnName, $table, $schema);
$props = [
'ordinal_position',
'column_default',
'is_nullable',
'data_type',
'character_maximum_length',
'character_octet_length',
'numeric_precision',
'numeric_scale',
'numeric_unsigned',
'erratas',
];
foreach ($props as $prop) {
if (isset($info[$prop])) {
$column->{'set' . str_replace('_', '', $prop)}($info[$prop]);
}
}
$column->setOrdinalPosition($info['ordinal_position']);
$column->setColumnDefault($info['column_default']);
$column->setIsNullable($info['is_nullable']);
$column->setDataType($info['data_type']);
$column->setCharacterMaximumLength($info['character_maximum_length']);
$column->setCharacterOctetLength($info['character_octet_length']);
$column->setNumericPrecision($info['numeric_precision']);
$column->setNumericScale($info['numeric_scale']);
$column->setNumericUnsigned($info['numeric_unsigned']);
$column->setErratas($info['erratas']);
return $column;
}
/**
* {@inheritdoc}
*/
public function getConstraints($table, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadConstraintData($table, $schema);
$constraints = [];
foreach (array_keys($this->data['constraints'][$schema][$table]) as $constraintName) {
$constraints[] = $this->getConstraint($constraintName, $table, $schema);
}
return $constraints;
}
/**
* {@inheritdoc}
*/
public function getConstraint($constraintName, $table, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadConstraintData($table, $schema);
if (! isset($this->data['constraints'][$schema][$table][$constraintName])) {
throw new Exception('Cannot find a constraint by that name in this table');
}
$info = $this->data['constraints'][$schema][$table][$constraintName];
$constraint = new ConstraintObject($constraintName, $table, $schema);
foreach (
[
'constraint_type' => 'setType',
'match_option' => 'setMatchOption',
'update_rule' => 'setUpdateRule',
'delete_rule' => 'setDeleteRule',
'columns' => 'setColumns',
'referenced_table_schema' => 'setReferencedTableSchema',
'referenced_table_name' => 'setReferencedTableName',
'referenced_columns' => 'setReferencedColumns',
'check_clause' => 'setCheckClause',
] as $key => $setMethod
) {
if (isset($info[$key])) {
$constraint->{$setMethod}($info[$key]);
}
}
return $constraint;
}
/**
* {@inheritdoc}
*/
public function getConstraintKeys($constraint, $table, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadConstraintReferences($table, $schema);
// organize references first
$references = [];
foreach ($this->data['constraint_references'][$schema] as $refKeyInfo) {
if ($refKeyInfo['constraint_name'] === $constraint) {
$references[$refKeyInfo['constraint_name']] = $refKeyInfo;
}
}
$this->loadConstraintDataKeys($schema);
$keys = [];
foreach ($this->data['constraint_keys'][$schema] as $constraintKeyInfo) {
if ($constraintKeyInfo['table_name'] === $table && $constraintKeyInfo['constraint_name'] === $constraint) {
$keys[] = $key = new ConstraintKeyObject($constraintKeyInfo['column_name']);
$key->setOrdinalPosition($constraintKeyInfo['ordinal_position']);
if (isset($references[$constraint])) {
//$key->setReferencedTableSchema($constraintKeyInfo['referenced_table_schema']);
$key->setForeignKeyUpdateRule($references[$constraint]['update_rule']);
$key->setForeignKeyDeleteRule($references[$constraint]['delete_rule']);
//$key->setReferencedTableSchema($references[$constraint]['referenced_table_schema']);
$key->setReferencedTableName($references[$constraint]['referenced_table_name']);
$key->setReferencedColumnName($references[$constraint]['referenced_column_name']);
}
}
}
return $keys;
}
/**
* {@inheritdoc}
*/
public function getTriggerNames($schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadTriggerData($schema);
return array_keys($this->data['triggers'][$schema]);
}
/**
* {@inheritdoc}
*/
public function getTriggers($schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$triggers = [];
foreach ($this->getTriggerNames($schema) as $triggerName) {
$triggers[] = $this->getTrigger($triggerName, $schema);
}
return $triggers;
}
/**
* {@inheritdoc}
*/
public function getTrigger($triggerName, $schema = null)
{
if ($schema === null) {
$schema = $this->defaultSchema;
}
$this->loadTriggerData($schema);
if (! isset($this->data['triggers'][$schema][$triggerName])) {
throw new Exception('Trigger "' . $triggerName . '" does not exist');
}
$info = $this->data['triggers'][$schema][$triggerName];
$trigger = new TriggerObject();
$trigger->setName($triggerName);
$trigger->setEventManipulation($info['event_manipulation']);
$trigger->setEventObjectCatalog($info['event_object_catalog']);
$trigger->setEventObjectSchema($info['event_object_schema']);
$trigger->setEventObjectTable($info['event_object_table']);
$trigger->setActionOrder($info['action_order']);
$trigger->setActionCondition($info['action_condition']);
$trigger->setActionStatement($info['action_statement']);
$trigger->setActionOrientation($info['action_orientation']);
$trigger->setActionTiming($info['action_timing']);
$trigger->setActionReferenceOldTable($info['action_reference_old_table']);
$trigger->setActionReferenceNewTable($info['action_reference_new_table']);
$trigger->setActionReferenceOldRow($info['action_reference_old_row']);
$trigger->setActionReferenceNewRow($info['action_reference_new_row']);
$trigger->setCreated($info['created']);
return $trigger;
}
/**
* Prepare data hierarchy
*
* @param string $type
* @return void
*/
protected function prepareDataHierarchy($type)
{
$data = &$this->data;
foreach (func_get_args() as $key) {
if (! isset($data[$key])) {
$data[$key] = [];
}
$data = &$data[$key];
}
}
/**
* Load schema data
*/
protected function loadSchemaData()
{
}
/**
* Load table name data
*
* @param string $schema
*/
protected function loadTableNameData($schema)
{
if (isset($this->data['table_names'][$schema])) {
return;
}
$this->prepareDataHierarchy('table_names', $schema);
}
/**
* Load column data
*
* @param string $table
* @param string $schema
*/
protected function loadColumnData($table, $schema)
{
if (isset($this->data['columns'][$schema][$table])) {
return;
}
$this->prepareDataHierarchy('columns', $schema, $table);
}
/**
* Load constraint data
*
* @param string $table
* @param string $schema
*/
protected function loadConstraintData($table, $schema)
{
if (isset($this->data['constraints'][$schema])) {
return;
}
$this->prepareDataHierarchy('constraints', $schema);
}
/**
* Load constraint data keys
*
* @param string $schema
*/
protected function loadConstraintDataKeys($schema)
{
if (isset($this->data['constraint_keys'][$schema])) {
return;
}
$this->prepareDataHierarchy('constraint_keys', $schema);
}
/**
* Load constraint references
*
* @param string $table
* @param string $schema
*/
protected function loadConstraintReferences($table, $schema)
{
if (isset($this->data['constraint_references'][$schema])) {
return;
}
$this->prepareDataHierarchy('constraint_references', $schema);
}
/**
* Load trigger data
*
* @param string $schema
*/
protected function loadTriggerData($schema)
{
if (isset($this->data['triggers'][$schema])) {
return;
}
$this->prepareDataHierarchy('triggers', $schema);
}
}