diff options
author | rojaro <> | 2009-07-13 13:56:07 +0000 |
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committer | rojaro <> | 2009-07-13 13:56:07 +0000 |
commit | b4b2c7e5e2eadd48b344538823dcf5645939ba44 (patch) | |
tree | 7e10a68d038fe37d71f7f7a8552136cecfb38183 /framework/Db/schema/oci/TOciSchema.php | |
parent | d6ef8e39d858de50107950180ea111349e4b0d6f (diff) |
- removed old schema directory
- some cleanups
Diffstat (limited to 'framework/Db/schema/oci/TOciSchema.php')
-rwxr-xr-x | framework/Db/schema/oci/TOciSchema.php | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/framework/Db/schema/oci/TOciSchema.php b/framework/Db/schema/oci/TOciSchema.php deleted file mode 100755 index 5c4dd8e2..00000000 --- a/framework/Db/schema/oci/TOciSchema.php +++ /dev/null @@ -1,278 +0,0 @@ -<?php -/** - * TOciSchema class file. - * - * @author Ricardo Grana <rickgrana@yahoo.com.br> - * @link http://www.yiiframework.com/ - * @copyright Copyright © 2008-2009 Yii Software LLC - * @license http://www.yiiframework.com/license/ - */ - -prado::using('System.db.schema.TDbSchema'); - -/** - * TOciSchema is the class for retrieving metadata information from a PostgreSQL database. - * - * @author Ricardo Grana <qiang.xue@gmail.com> - * @version $Id$ - * @package system.db.schema.oci - * @since 1.0.5 - */ -class TOciSchema extends TDbSchema -{ - private $_defaultSchema = ''; - private $_sequences=array(); - - /** - * Quotes a table name for use in a query. - * @param string table name - * @return string the properly quoted table name - */ - public function quoteTableName($name) - { - return $name; - } - - /** - * Quotes a column name for use in a query. - * @param string column name - * @return string the properly quoted column name - */ - public function quoteColumnName($name) - { - return $name; - } - - /** - * Creates a command builder for the database. - * This method may be overridden by child classes to create a DBMS-specific command builder. - * @return TDbCommandBuilder command builder instance - */ - protected function createCommandBuilder() - { - return new TOciCommandBuilder($this); - } - - /** - * @param string default schema. - */ - public function setDefaultSchema($schema) - { - $this->_defaultSchema=$schema; - } - - /** - * @return string default schema. - */ - public function getDefaultSchema() - { - if (!strlen($this->_defaultSchema)) - { - $this->setDefaultSchema(strtoupper($this->getDbConnection()->username)); - } - - return $this->_defaultSchema; - } - - /** - * @param string table name with optional schema name prefix, uses default schema name prefix is not provided. - * @return array tuple as ($schemaName,$tableName) - */ - protected function getSchemaTableName($table) - { - $table = strtoupper($table); - if(count($parts= explode('.', str_replace('"','',$table))) > 1) - return array($parts[0], $parts[1]); - else - return array($this->getDefaultSchema(),$parts[0]); - } - - /** - * Creates a table instance representing the metadata for the named table. - * @return TDbTableSchema driver dependent table metadata. - */ - protected function createTable($name) - { - $table=new TOciTableSchema; - $this->resolveTableNames($table,$name); - - if(!$this->findColumns($table)) - return null; - $this->findConstraints($table); - - return $table; - } - - /** - * Generates various kinds of table names. - * @param TOciTableSchema the table instance - * @param string the unquoted table name - */ - protected function resolveTableNames($table,$name) - { - $parts=explode('.',str_replace('"','',$name)); - if(isset($parts[1])) - { - $schemaName=$parts[0]; - $tableName=$parts[1]; - } - else - { - $schemaName=$this->getDefaultSchema(); - $tableName=$parts[0]; - } - - $table->name=$tableName; - $table->schemaName=$schemaName; - if($schemaName===$this->getDefaultSchema()) - $table->rawName=$this->quoteTableName($tableName); - else - $table->rawName=$this->quoteTableName($schemaName).'.'.$this->quoteTableName($tableName); - } - - /** - * Collects the table column metadata. - * @param TOciTableSchema the table metadata - * @return boolean whether the table exists in the database - */ - protected function findColumns($table) - { - list($schemaName,$tableName) = $this->getSchemaTableName($table->name); - - $sql=<<<EOD -SELECT a.column_name, a.data_type || - case - when data_precision is not null - then '(' || a.data_precision || - case when a.data_scale > 0 then ',' || a.data_scale else '' end - || ')' - when data_type = 'DATE' then '' - else '(' || to_char(a.data_length) || ')' - end as data_type, - a.nullable, a.data_default, - ( SELECT D.constraint_type - FROM ALL_CONS_COLUMNS C - inner join ALL_constraints D on D.OWNER = C.OWNER and D.constraint_name = C.constraint_name - WHERE C.OWNER = B.OWNER - and C.table_name = B.object_name - and C.column_name = A.column_name - and D.constraint_type = 'P') as Key -FROM ALL_TAB_COLUMNS A -inner join ALL_OBJECTS B ON b.owner = a.owner and ltrim(B.OBJECT_NAME) = ltrim(A.TABLE_NAME) -WHERE - a.owner = '{$schemaName}' - and b.object_type = 'TABLE' - and b.object_name = '{$tableName}' -ORDER by a.column_id -EOD; - - $command=$this->getDbConnection()->createCommand($sql); - - if(($columns=$command->queryAll())===array()){ - return false; - } - - foreach($columns as $column) - { - $c=$this->createColumn($column); - - $table->columns[$c->name]=$c; - if($c->isPrimaryKey) - { - if($table->primaryKey===null) - $table->primaryKey=$c->name; - else if(is_string($table->primaryKey)) - $table->primaryKey=array($table->primaryKey,$c->name); - else - $table->primaryKey[]=$c->name; - } - } - return true; - } - - /** - * Creates a table column. - * @param array column metadata - * @return TDbColumnSchema normalized column metadata - */ - protected function createColumn($column) - { - $c=new TOciColumnSchema; - $c->name=$column['COLUMN_NAME']; - $c->rawName=$this->quoteColumnName($c->name); - $c->allowNull=$column['NULLABLE']==='Y'; - $c->isPrimaryKey=strpos($column['KEY'],'P')!==false; - $c->isForeignKey=false; - $c->init($column['DATA_TYPE'],$column['DATA_DEFAULT']); - - return $c; - } - - /** - * Collects the primary and foreign key column details for the given table. - * @param TOciTableSchema the table metadata - */ - protected function findConstraints($table) - { - $sql=<<<EOD - SELECT D.constraint_type, C.COLUMN_NAME, C.position, D.r_constraint_name, - E.table_name as table_ref, f.column_name as column_ref - FROM ALL_CONS_COLUMNS C - inner join ALL_constraints D on D.OWNER = C.OWNER and D.constraint_name = C.constraint_name - left join ALL_constraints E on E.OWNER = D.r_OWNER and E.constraint_name = D.r_constraint_name - left join ALL_cons_columns F on F.OWNER = E.OWNER and F.constraint_name = E.constraint_name and F.position = c.position - WHERE C.OWNER = '{$table->schemaName}' - and C.table_name = '{$table->name}' - and D.constraint_type <> 'P' - order by d.constraint_name, c.position -EOD; - $command=$this->getDbConnection()->createCommand($sql); - foreach($command->queryAll() as $row) - { - if($row['constraint_type']==='R') // foreign key - { - $name = $row["COLUMN_NAME"]; - $table->foreignKeys[$name]=array($row["TABLE_REF"], array($row["COLUMN_REF"])); - if(isset($table->columns[$name])) - $table->columns[$name]->isForeignKey=true; - } - - } - } - - - /** - * Returns all table names in the database. - * @return array all table names in the database. - */ - protected function findTableNames($schema='') - { - if($schema==='') - { - $sql=<<<EOD -SELECT table_name, '{$schema}' as table_schema FROM user_tables -EOD; - $command=$this->getDbConnection()->createCommand($sql); - } - else - { - $sql=<<<EOD -SELECT object_name as table_name, owner as table_schema FROM all_objects -WHERE object_type = 'TABLE' AND owner=:schema -EOD; - $command=$this->getDbConnection()->createCommand($sql); - $command->bindParam(':schema',$schema); - } - - $rows=$command->queryAll(); - $names=array(); - foreach($rows as $row) - { - if($schema===$this->getDefaultSchema()) - $names[]=$row['table_name']; - else - $names[]=$row['schema_name'].'.'.$row['table_name']; - } - return $names; - } -} |