From b00a84762c3771bd5c1bf51c01c3920f7e4a1633 Mon Sep 17 00:00:00 2001 From: p0larbeer Date: Mon, 2 Dec 2013 23:30:51 -0800 Subject: [PATCH 1/4] Create ColumnSchema.php --- framework/yii/db/oci/ColumnSchema.php | 88 +++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 framework/yii/db/oci/ColumnSchema.php diff --git a/framework/yii/db/oci/ColumnSchema.php b/framework/yii/db/oci/ColumnSchema.php new file mode 100644 index 0000000..90c80fd --- /dev/null +++ b/framework/yii/db/oci/ColumnSchema.php @@ -0,0 +1,88 @@ +dbType=$dbType; + $this->extractType($dbType); + $this->extractLimit($dbType); + if($defaultValue!==null) + $this->extractDefault($defaultValue); + } + + /** + * Extracts the PHP type from DB type. + * @param string $dbType DB type + * @return string + */ + protected function extractOraType($dbType){ + if(strpos($dbType,'FLOAT')!==false) return 'double'; + + if (strpos($dbType,'NUMBER')!==false || strpos($dbType,'INTEGER')!==false) + { + if(strpos($dbType,'(') && preg_match('/\((.*)\)/',$dbType,$matches)) + { + $values=explode(',',$matches[1]); + if(isset($values[1]) and (((int)$values[1]) > 0)) + return 'double'; + else + return 'integer'; + } + else + return 'double'; + } + else + return 'string'; + } + + /** + * Extracts the PHP type from DB type. + * @param string $dbType DB type + */ + protected function extractType($dbType) + { + $this->type=$this->extractOraType($dbType); + } + + /** + * Extracts size, precision and scale information from column's DB type. + * @param string $dbType the column's DB type + */ + protected function extractLimit($dbType) + { + if(strpos($dbType,'(') && preg_match('/\((.*)\)/',$dbType,$matches)) + { + $values=explode(',',$matches[1]); + $this->size=$this->precision=(int)$values[0]; + if(isset($values[1])) + $this->scale=(int)$values[1]; + } + } + + /** + * Extracts the default value for the column. + * The value is typecasted to correct PHP type. + * @param mixed $defaultValue the default value obtained from metadata + */ + protected function extractDefault($defaultValue) + { + if(stripos($defaultValue,'timestamp')!==false) { + $this->defaultValue=null; + } + else { + $this->defaultValue=$this->typecast($defaultValue); + } + } + +} From 32149a5bef9a6d238efc41eec0fab7aae40c8642 Mon Sep 17 00:00:00 2001 From: p0larbeer Date: Mon, 2 Dec 2013 23:31:23 -0800 Subject: [PATCH 2/4] Create QueryBuilder.php --- framework/yii/db/oci/QueryBuilder.php | 75 +++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 framework/yii/db/oci/QueryBuilder.php diff --git a/framework/yii/db/oci/QueryBuilder.php b/framework/yii/db/oci/QueryBuilder.php new file mode 100644 index 0000000..3ee27f1 --- /dev/null +++ b/framework/yii/db/oci/QueryBuilder.php @@ -0,0 +1,75 @@ + + * @since 2.0 + */ +class QueryBuilder extends \yii\db\QueryBuilder { + + private $sql; + + public function build($query) { + //var_dump($query);exit; + $params = $query->params; + $clauses = [ + $this->buildSelect($query->select, $query->distinct, $query->selectOption), + $this->buildFrom($query->from), + $this->buildJoin($query->join, $params), + $this->buildWhere($query->where, $params), + $this->buildGroupBy($query->groupBy), + $this->buildHaving($query->having, $params), + $this->buildUnion($query->union, $params), + $this->buildOrderBy($query->orderBy), + //$this->buildLimit($query->limit, $query->offset), + ]; + //var_dump( [implode($this->separator, array_filter($clauses)), $params]);exit; + $this->sql = implode($this->separator, array_filter($clauses)); + + if (!is_null($query->limit) && !is_null($query->offset)) { + $this->sql = $this->buildLimit($query->limit, $query->offset); + } + return [$this->sql, $params]; + //return [implode($this->separator, array_filter($clauses)), $params]; + } + + public function buildLimit($limit, $offset) { + //var_dump($limit >= 0); + //var_dump($offset);exit; + //var_dump($limit, $offset); + if (($limit < 0) && ($offset < 0)) { + return $this->sql; + } + $filters = array(); + if ($offset > 0) { + $filters[] = 'rowNumId > ' . (int) $offset; + } + + if ($limit >= 0) { + $filters[] = 'rownum <= ' . (int) $limit; + } + + if (count($filters) > 0) { + $filter = implode(' and ', $filters); + $filter = " WHERE " . $filter; + } else { + $filter = ''; + } + + $sql = <<sql}), + PAGINATION AS (SELECT USER_SQL.*, rownum as rowNumId FROM USER_SQL) +SELECT * +FROM PAGINATION +{$filter} +EOD; + return $sql; + } + +} From 9f0e97ff2542a5125fbe7a62c9e88c097e9f0bb7 Mon Sep 17 00:00:00 2001 From: p0larbeer Date: Mon, 2 Dec 2013 23:31:44 -0800 Subject: [PATCH 3/4] Create Schema.php --- framework/yii/db/oci/Schema.php | 325 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) create mode 100644 framework/yii/db/oci/Schema.php diff --git a/framework/yii/db/oci/Schema.php b/framework/yii/db/oci/Schema.php new file mode 100644 index 0000000..2e247d9 --- /dev/null +++ b/framework/yii/db/oci/Schema.php @@ -0,0 +1,325 @@ +db); + } + + public function quoteTableName($name) { + if (strpos($name, '.') === false) { + return $this->quoteSimpleTableName($name); + } + $parts = explode('.', $name); + foreach ($parts as $i => $part) { + $parts[$i] = $this->quoteSimpleTableName($part); + } + return implode('.', $parts); + } + + public function quoteSimpleTableName($name) { + return '"' . $name . '"'; + //return $name; + } + + public function quoteColumnName($name) { + if (($pos = strrpos($name, '.')) !== false) { + $prefix = $this->quoteTableName(substr($name, 0, $pos)) . '.'; + $name = substr($name, $pos + 1); + } else { + $prefix = ''; + } + return $prefix . ($name === '*' ? $name : $this->quoteSimpleColumnName($name)); + } + + public function quoteSimpleColumnName($name) { + return '"' . $name . '"'; + //return $name; + } + + public function loadTableSchema($name) { + $table = new TableSchema(); + $this->resolveTableNames($table, $name); + // $this->findPrimaryKeys($table); + if ($this->findColumns($table)) { + //$this->findForeignKeys($table); + $this->findConstraints($table); + return $table; + } + } + + /** + * Resolves the table name and schema name (if any). + * + * @param TableSchema $table the table metadata object + * @param string $name the table name + */ + protected function resolveTableNames($table, $name) { + $parts = explode('.', str_replace('"', '', $name)); + if (isset($parts[1])) { + $table->schemaName = $parts[0]; + $table->name = $parts[1]; + } else { + $table->name = $parts[0]; + } + + if ($table->schemaName === null) { + $table->schemaName = $this->getDefaultSchema(); + } + } + + /** + * + * @return string default schema. + */ + public function getDefaultSchema() { + if (!strlen($this->_defaultSchema)) { + $this->setDefaultSchema(strtoupper($this->db->username)); + } + + return $this->_defaultSchema; + } + + /** + * + * @param string $schema default schema. + */ + public function setDefaultSchema($schema) { + $this->_defaultSchema = $schema; + } + + public function getLastInsertID($sequenceName = '') { + if ($this->db->isActive) { + $sql = "select {$sequenceName}.currval from dual"; + return $this->db->createCommand($sql)->queryScalar(); + } else { + throw new InvalidCallException('DB Connection is not active.'); + } + } + + /** + * Collects the table column metadata. + * @param COciTableSchema $table the table metadata + * @return boolean whether the table exists in the database + */ + protected function findColumns($table) { + $schemaName = $table->schemaName; + $tableName = $table->name; + + $sql = << 0 then ',' || a.data_scale else '' end + || ')' + when data_type = 'DATE' then '' + when data_type = 'NUMBER' then '' + else '(' || to_char(a.data_length) || ')' + end as data_type, + a.nullable, a.data_default, + ( SELECT D.constraint_type + FROM ALL_CONS_COLUMNS C + inner join ALL_constraints D on D.OWNER = C.OWNER and D.constraint_name = C.constraint_name + WHERE C.OWNER = B.OWNER + and C.table_name = B.object_name + and C.column_name = A.column_name + and D.constraint_type = 'P') as Key, + com.comments as column_comment +FROM ALL_TAB_COLUMNS A +inner join ALL_OBJECTS B ON b.owner = a.owner and ltrim(B.OBJECT_NAME) = ltrim(A.TABLE_NAME) +LEFT JOIN user_col_comments com ON (A.table_name = com.table_name AND A.column_name = com.column_name) +WHERE + a.owner = '{$schemaName}' + and (b.object_type = 'TABLE' or b.object_type = 'VIEW') + and b.object_name = '{$tableName}' +ORDER by a.column_id +EOD; + + + try { + $columns = $this->db->createCommand($sql)->queryAll(); + } catch (\Exception $e) { + return false; + } + + foreach ($columns as $column) { + $c = $this->createColumn($column); + + $table->columns[$c->name] = $c; + if ($c->isPrimaryKey) { + if ($table->primaryKey === null) { + $table->primaryKey = $c->name; + } elseif (is_string($table->primaryKey)) { + $table->primaryKey = array($table->primaryKey, $c->name); + } else { + $table->primaryKey[] = $c->name; + } + $sql = "select sequence_name +from user_tables tabs +join user_triggers trigs + on trigs.table_name = tabs.table_name +join user_dependencies deps + on deps.name = trigs.trigger_name +join user_sequences seqs + on seqs.sequence_name = deps.referenced_name +where tabs.table_name = '{$tableName}' + and trigs.triggering_event = 'INSERT'"; + try { + $seqName = $this->db->createCommand($sql)->queryScalar(); + } catch (\Exception $e) { + return false; + } + $table->sequenceName = $seqName; + $c->autoIncrement = true; + } + } + return true; + } + + protected function createColumn($column) { + $c = new ColumnSchema; + $c->name = $column['COLUMN_NAME']; + $c->allowNull = $column['NULLABLE'] === 'Y'; + $c->isPrimaryKey = strpos($column['KEY'], 'P') !== false; + $c->extract($column['DATA_TYPE'], $column['DATA_DEFAULT']); + $c->comment = $column['COLUMN_COMMENT'] === null ? '' : $column['COLUMN_COMMENT']; + + return $c; + } + + protected function findConstraints($table) { + $sql = << 'P' + order by d.constraint_name, c.position +EOD; + $command = $this->db->createCommand($sql); + foreach ($command->queryAll() as $row) { + if ($row['CONSTRAINT_TYPE'] === 'R') { // foreign key + $name = $row["COLUMN_NAME"]; + $table->foreignKeys[$name] = array($row["TABLE_REF"], $row["COLUMN_REF"]); + /* + if (isset($table->columns[$name])) { + $table->columns[$name]->isForeignKey = true; + } + * + */ + } + } + } + + /** + * Returns all table names in the database. + * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. + * If not empty, the returned table names will be prefixed with the schema name. + * @return array all table names in the database. + */ + protected function findTableNames($schema = '') { + if ($schema === '') { + $sql = <<db->createCommand($sql); + } else { + $sql = <<db > createCommand($sql); + $command->bindParam(':schema', $schema); + } + + $rows = $command->queryAll(); + $names = array(); + foreach ($rows as $row) { + if ($schema === $this->getDefaultSchema() || $schema === '') { + $names[] = $row['TABLE_NAME']; + } else { + $names[] = $row['TABLE_SCHEMA'] . '.' . $row['TABLE_NAME']; + } + } + return $names; + } + + /** + * Builds a SQL statement for renaming a DB table. + * @param string $table the table to be renamed. The name will be properly quoted by the method. + * @param string $newName the new table name. The name will be properly quoted by the method. + * @return string the SQL statement for renaming a DB table. + * @since 1.1.6 + */ + public function renameTable($table, $newName) { + return 'ALTER TABLE ' . $this->quoteTableName($table) . ' RENAME TO ' . $this->quoteTableName($newName); + } + + /** + * Builds a SQL statement for changing the definition of a column. + * @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. + * @param string $column the name of the column to be changed. The name will be properly quoted by the method. + * @param string $type the new column type. The {@link getColumnType} method will be invoked to convert abstract column type (if any) + * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. + * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. + * @return string the SQL statement for changing the definition of a column. + * @since 1.1.6 + */ + public function alterColumn($table, $column, $type) { + $type = $this->getColumnType($type); + $sql = 'ALTER TABLE ' . $this->quoteTableName($table) . ' MODIFY ' + . $this->quoteColumnName($column) . ' ' + . $this->getColumnType($type); + return $sql; + } + + /** + * Builds a SQL statement for dropping an index. + * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. + * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. + * @return string the SQL statement for dropping an index. + * @since 1.1.6 + */ + public function dropIndex($name, $table) { + return 'DROP INDEX ' . $this->quoteTableName($name); + } + + /** + * Resets the sequence value of a table's primary key. + * The sequence will be reset such that the primary key of the next new row inserted + * will have the specified value or 1. + * @param CDbTableSchema $table the table schema whose primary key sequence will be reset + * @param mixed $value the value for the primary key of the next new row inserted. If this is not set, + * the next new row's primary key will have a value 1. + * @since 1.1.13 + */ + public function resetSequence($table, $value = 1) { + $seq = $table->name . "_SEQ"; + if ($table->sequenceName !== null) { + $this->db->createCommand("DROP SEQUENCE " . $seq)->execute(); + + $createSequenceSql = <<< SQL +create sequence $seq +start with $value +increment by 1 +nomaxvalue +nocache +SQL; + $this->db->createCommand($createSequenceSql)->execute(); + } + } + +} From d30aa3efef42aa62f49b7f57e2e38c309e075c5d Mon Sep 17 00:00:00 2001 From: p0larbeer Date: Mon, 9 Dec 2013 10:38:08 +0400 Subject: [PATCH 4/4] Coding style PSR-2 --- framework/yii/db/oci/ColumnSchema.php | 124 ++++---- framework/yii/db/oci/QueryBuilder.php | 117 +++---- framework/yii/db/oci/Schema.php | 555 ++++++++++++++++++---------------- 3 files changed, 421 insertions(+), 375 deletions(-) diff --git a/framework/yii/db/oci/ColumnSchema.php b/framework/yii/db/oci/ColumnSchema.php index 90c80fd..9436c78 100644 --- a/framework/yii/db/oci/ColumnSchema.php +++ b/framework/yii/db/oci/ColumnSchema.php @@ -1,88 +1,92 @@ dbType=$dbType; + $this->dbType = $dbType; $this->extractType($dbType); $this->extractLimit($dbType); - if($defaultValue!==null) + if ($defaultValue !== null) $this->extractDefault($defaultValue); } - + /** * Extracts the PHP type from DB type. - * @param string $dbType DB type + * + * @param string $dbType + * DB type * @return string */ - protected function extractOraType($dbType){ - if(strpos($dbType,'FLOAT')!==false) return 'double'; - - if (strpos($dbType,'NUMBER')!==false || strpos($dbType,'INTEGER')!==false) - { - if(strpos($dbType,'(') && preg_match('/\((.*)\)/',$dbType,$matches)) - { - $values=explode(',',$matches[1]); - if(isset($values[1]) and (((int)$values[1]) > 0)) + protected function extractOraType($dbType) + { + if (strpos($dbType, 'FLOAT') !== false) + return 'double'; + + if (strpos($dbType, 'NUMBER') !== false || strpos($dbType, 'INTEGER') !== false) { + if (strpos($dbType, '(') && preg_match('/\((.*)\)/', $dbType, $matches)) { + $values = explode(',', $matches[1]); + if (isset($values[1]) and (((int) $values[1]) > 0)) return 'double'; else return 'integer'; - } - else + } else return 'double'; - } - else + } else return 'string'; } - + + /** + * Extracts the PHP type from DB type. + * + * @param string $dbType + * DB type + */ + protected function extractType($dbType) + { + $this->type = $this->extractOraType($dbType); + } + /** - * Extracts the PHP type from DB type. - * @param string $dbType DB type - */ - protected function extractType($dbType) - { - $this->type=$this->extractOraType($dbType); - } - - /** - * Extracts size, precision and scale information from column's DB type. - * @param string $dbType the column's DB type - */ - protected function extractLimit($dbType) - { - if(strpos($dbType,'(') && preg_match('/\((.*)\)/',$dbType,$matches)) - { - $values=explode(',',$matches[1]); - $this->size=$this->precision=(int)$values[0]; - if(isset($values[1])) - $this->scale=(int)$values[1]; - } - } - + * Extracts size, precision and scale information from column's DB type. + * + * @param string $dbType + * the column's DB type + */ + protected function extractLimit($dbType) + { + if (strpos($dbType, '(') && preg_match('/\((.*)\)/', $dbType, $matches)) { + $values = explode(',', $matches[1]); + $this->size = $this->precision = (int) $values[0]; + if (isset($values[1])) + $this->scale = (int) $values[1]; + } + } + /** - * Extracts the default value for the column. - * The value is typecasted to correct PHP type. - * @param mixed $defaultValue the default value obtained from metadata - */ - protected function extractDefault($defaultValue) - { - if(stripos($defaultValue,'timestamp')!==false) { - $this->defaultValue=null; - } - else { - $this->defaultValue=$this->typecast($defaultValue); - } - } - + * Extracts the default value for the column. + * The value is typecasted to correct PHP type. + * + * @param mixed $defaultValue + * the default value obtained from metadata + */ + protected function extractDefault($defaultValue) + { + if (stripos($defaultValue, 'timestamp') !== false) { + $this->defaultValue = null; + } else { + $this->defaultValue = $this->typecast($defaultValue); + } + } } diff --git a/framework/yii/db/oci/QueryBuilder.php b/framework/yii/db/oci/QueryBuilder.php index 3ee27f1..ac3aebb 100644 --- a/framework/yii/db/oci/QueryBuilder.php +++ b/framework/yii/db/oci/QueryBuilder.php @@ -1,75 +1,78 @@ - * @since 2.0 + * QueryBuilder is the query builder for Oracle databases. + * */ -class QueryBuilder extends \yii\db\QueryBuilder { - - private $sql; - - public function build($query) { - //var_dump($query);exit; - $params = $query->params; - $clauses = [ - $this->buildSelect($query->select, $query->distinct, $query->selectOption), - $this->buildFrom($query->from), - $this->buildJoin($query->join, $params), - $this->buildWhere($query->where, $params), - $this->buildGroupBy($query->groupBy), - $this->buildHaving($query->having, $params), - $this->buildUnion($query->union, $params), - $this->buildOrderBy($query->orderBy), - //$this->buildLimit($query->limit, $query->offset), - ]; - //var_dump( [implode($this->separator, array_filter($clauses)), $params]);exit; - $this->sql = implode($this->separator, array_filter($clauses)); - - if (!is_null($query->limit) && !is_null($query->offset)) { - $this->sql = $this->buildLimit($query->limit, $query->offset); - } - return [$this->sql, $params]; - //return [implode($this->separator, array_filter($clauses)), $params]; - } +class QueryBuilder extends \yii\db\QueryBuilder +{ - public function buildLimit($limit, $offset) { - //var_dump($limit >= 0); - //var_dump($offset);exit; - //var_dump($limit, $offset); - if (($limit < 0) && ($offset < 0)) { - return $this->sql; - } - $filters = array(); - if ($offset > 0) { - $filters[] = 'rowNumId > ' . (int) $offset; - } + private $sql; - if ($limit >= 0) { - $filters[] = 'rownum <= ' . (int) $limit; - } - - if (count($filters) > 0) { - $filter = implode(' and ', $filters); - $filter = " WHERE " . $filter; - } else { - $filter = ''; - } + public function build($query) + { + // var_dump($query);exit; + $params = $query->params; + $clauses = [ + $this->buildSelect ( $query->select, $query->distinct, $query->selectOption ), + $this->buildFrom ( $query->from ), + $this->buildJoin ( $query->join, $params ), + $this->buildWhere ( $query->where, $params ), + $this->buildGroupBy ( $query->groupBy ), + $this->buildHaving ( $query->having, $params ), + $this->buildUnion ( $query->union, $params ), + $this->buildOrderBy ( $query->orderBy ) + // $this->buildLimit($query->limit, $query->offset), + + ; + // var_dump( [implode($this->separator, array_filter($clauses)), $params]);exit; + $this->sql = implode($this->separator, array_filter($clauses)); + + if (! is_null($query->limit) && ! is_null($query->offset)) { + $this->sql = $this->buildLimit($query->limit, $query->offset); + } + return [ + $this->sql, + $params + ]; + // return [implode($this->separator, array_filter($clauses)), $params]; + } - $sql = <<= 0); + // var_dump($offset);exit; + // var_dump($limit, $offset); + if (($limit < 0) && ($offset < 0)) { + return $this->sql; + } + $filters = array(); + if ($offset > 0) { + $filters[] = 'rowNumId > ' . (int) $offset; + } + + if ($limit >= 0) { + $filters[] = 'rownum <= ' . (int) $limit; + } + + if (count($filters) > 0) { + $filter = implode(' and ', $filters); + $filter = " WHERE " . $filter; + } else { + $filter = ''; + } + + $sql = <<sql}), PAGINATION AS (SELECT USER_SQL.*, rownum as rowNumId FROM USER_SQL) SELECT * FROM PAGINATION {$filter} EOD; - return $sql; - } - + return $sql; + } } diff --git a/framework/yii/db/oci/Schema.php b/framework/yii/db/oci/Schema.php index 2e247d9..2830faf 100644 --- a/framework/yii/db/oci/Schema.php +++ b/framework/yii/db/oci/Schema.php @@ -1,119 +1,137 @@ db); - } - - public function quoteTableName($name) { - if (strpos($name, '.') === false) { - return $this->quoteSimpleTableName($name); - } - $parts = explode('.', $name); - foreach ($parts as $i => $part) { - $parts[$i] = $this->quoteSimpleTableName($part); - } - return implode('.', $parts); - } - - public function quoteSimpleTableName($name) { - return '"' . $name . '"'; - //return $name; - } - - public function quoteColumnName($name) { - if (($pos = strrpos($name, '.')) !== false) { - $prefix = $this->quoteTableName(substr($name, 0, $pos)) . '.'; - $name = substr($name, $pos + 1); - } else { - $prefix = ''; - } - return $prefix . ($name === '*' ? $name : $this->quoteSimpleColumnName($name)); - } - - public function quoteSimpleColumnName($name) { - return '"' . $name . '"'; - //return $name; - } - - public function loadTableSchema($name) { - $table = new TableSchema(); - $this->resolveTableNames($table, $name); - // $this->findPrimaryKeys($table); - if ($this->findColumns($table)) { - //$this->findForeignKeys($table); - $this->findConstraints($table); - return $table; - } - } - - /** - * Resolves the table name and schema name (if any). - * - * @param TableSchema $table the table metadata object - * @param string $name the table name - */ - protected function resolveTableNames($table, $name) { - $parts = explode('.', str_replace('"', '', $name)); - if (isset($parts[1])) { - $table->schemaName = $parts[0]; - $table->name = $parts[1]; - } else { - $table->name = $parts[0]; - } - - if ($table->schemaName === null) { - $table->schemaName = $this->getDefaultSchema(); - } - } - - /** - * - * @return string default schema. - */ - public function getDefaultSchema() { - if (!strlen($this->_defaultSchema)) { - $this->setDefaultSchema(strtoupper($this->db->username)); - } - - return $this->_defaultSchema; - } - - /** - * - * @param string $schema default schema. - */ - public function setDefaultSchema($schema) { - $this->_defaultSchema = $schema; - } - - public function getLastInsertID($sequenceName = '') { - if ($this->db->isActive) { - $sql = "select {$sequenceName}.currval from dual"; - return $this->db->createCommand($sql)->queryScalar(); - } else { - throw new InvalidCallException('DB Connection is not active.'); - } - } - - /** - * Collects the table column metadata. - * @param COciTableSchema $table the table metadata - * @return boolean whether the table exists in the database - */ - protected function findColumns($table) { - $schemaName = $table->schemaName; - $tableName = $table->name; - - $sql = <<db); + } + + public function quoteTableName($name) + { + if (strpos($name, '.') === false) { + return $this->quoteSimpleTableName($name); + } + $parts = explode('.', $name); + foreach ($parts as $i => $part) { + $parts[$i] = $this->quoteSimpleTableName($part); + } + return implode('.', $parts); + } + + public function quoteSimpleTableName($name) + { + return '"' . $name . '"'; + // return $name; + } + + public function quoteColumnName($name) + { + if (($pos = strrpos($name, '.')) !== false) { + $prefix = $this->quoteTableName(substr($name, 0, $pos)) . '.'; + $name = substr($name, $pos + 1); + } else { + $prefix = ''; + } + return $prefix . ($name === '*' ? $name : $this->quoteSimpleColumnName($name)); + } + + public function quoteSimpleColumnName($name) + { + return '"' . $name . '"'; + // return $name; + } + + public function loadTableSchema($name) + { + $table = new TableSchema(); + $this->resolveTableNames($table, $name); + // $this->findPrimaryKeys($table); + if ($this->findColumns($table)) { + // $this->findForeignKeys($table); + $this->findConstraints($table); + return $table; + } + } + + /** + * Resolves the table name and schema name (if any). + * + * @param TableSchema $table + * the table metadata object + * @param string $name + * the table name + */ + protected function resolveTableNames($table, $name) + { + $parts = explode('.', str_replace('"', '', $name)); + if (isset($parts[1])) { + $table->schemaName = $parts[0]; + $table->name = $parts[1]; + } else { + $table->name = $parts[0]; + } + + if ($table->schemaName === null) { + $table->schemaName = $this->getDefaultSchema(); + } + } + + /** + * + * @return string default schema. + */ + public function getDefaultSchema() + { + if (! strlen($this->_defaultSchema)) { + $this->setDefaultSchema(strtoupper($this->db->username)); + } + + return $this->_defaultSchema; + } + + /** + * + * @param string $schema + * default schema. + */ + public function setDefaultSchema($schema) + { + $this->_defaultSchema = $schema; + } + + public function getLastInsertID($sequenceName = '') + { + if ($this->db->isActive) { + $sql = "select {$sequenceName}.currval from dual"; + return $this->db->createCommand($sql)->queryScalar(); + } else { + throw new InvalidCallException('DB Connection is not active.'); + } + } + + /** + * Collects the table column metadata. + * + */ + protected function findColumns($table) + { + $schemaName = $table->schemaName; + $tableName = $table->name; + + $sql = <<db->createCommand($sql)->queryAll(); - } catch (\Exception $e) { - return false; - } - - foreach ($columns as $column) { - $c = $this->createColumn($column); - - $table->columns[$c->name] = $c; - if ($c->isPrimaryKey) { - if ($table->primaryKey === null) { - $table->primaryKey = $c->name; - } elseif (is_string($table->primaryKey)) { - $table->primaryKey = array($table->primaryKey, $c->name); - } else { - $table->primaryKey[] = $c->name; - } - $sql = "select sequence_name + + try { + $columns = $this->db->createCommand($sql)->queryAll(); + } catch (\Exception $e) { + return false; + } + + foreach ($columns as $column) { + $c = $this->createColumn($column); + + $table->columns[$c->name] = $c; + if ($c->isPrimaryKey) { + if ($table->primaryKey === null) { + $table->primaryKey = $c->name; + } elseif (is_string($table->primaryKey)) { + $table->primaryKey = array( + $table->primaryKey, + $c->name + ); + } else { + $table->primaryKey[] = $c->name; + } + $sql = "select sequence_name from user_tables tabs join user_triggers trigs on trigs.table_name = tabs.table_name @@ -172,31 +192,33 @@ join user_sequences seqs on seqs.sequence_name = deps.referenced_name where tabs.table_name = '{$tableName}' and trigs.triggering_event = 'INSERT'"; - try { - $seqName = $this->db->createCommand($sql)->queryScalar(); - } catch (\Exception $e) { - return false; - } - $table->sequenceName = $seqName; - $c->autoIncrement = true; - } - } - return true; - } - - protected function createColumn($column) { - $c = new ColumnSchema; - $c->name = $column['COLUMN_NAME']; - $c->allowNull = $column['NULLABLE'] === 'Y'; - $c->isPrimaryKey = strpos($column['KEY'], 'P') !== false; - $c->extract($column['DATA_TYPE'], $column['DATA_DEFAULT']); - $c->comment = $column['COLUMN_COMMENT'] === null ? '' : $column['COLUMN_COMMENT']; - - return $c; - } - - protected function findConstraints($table) { - $sql = <<db->createCommand($sql)->queryScalar(); + } catch (\Exception $e) { + return false; + } + $table->sequenceName = $seqName; + $c->autoIncrement = true; + } + } + return true; + } + + protected function createColumn($column) + { + $c = new ColumnSchema(); + $c->name = $column['COLUMN_NAME']; + $c->allowNull = $column['NULLABLE'] === 'Y'; + $c->isPrimaryKey = strpos($column['KEY'], 'P') !== false; + $c->extract($column['DATA_TYPE'], $column['DATA_DEFAULT']); + $c->comment = $column['COLUMN_COMMENT'] === null ? '' : $column['COLUMN_COMMENT']; + + return $c; + } + + protected function findConstraints($table) + { + $sql = << 'P' order by d.constraint_name, c.position EOD; - $command = $this->db->createCommand($sql); - foreach ($command->queryAll() as $row) { - if ($row['CONSTRAINT_TYPE'] === 'R') { // foreign key - $name = $row["COLUMN_NAME"]; - $table->foreignKeys[$name] = array($row["TABLE_REF"], $row["COLUMN_REF"]); - /* - if (isset($table->columns[$name])) { - $table->columns[$name]->isForeignKey = true; - } - * - */ - } - } - } - - /** - * Returns all table names in the database. - * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema. - * If not empty, the returned table names will be prefixed with the schema name. - * @return array all table names in the database. - */ - protected function findTableNames($schema = '') { - if ($schema === '') { - $sql = <<db->createCommand($sql); + foreach ($command->queryAll() as $row) { + if ($row['CONSTRAINT_TYPE'] === 'R') { // foreign key + $name = $row["COLUMN_NAME"]; + $table->foreignKeys[$name] = array( + $row["TABLE_REF"], + $row["COLUMN_REF"] + ); + /* + * if (isset($table->columns[$name])) { $table->columns[$name]->isForeignKey = true; } + */ + } + } + } + + /** + * Returns all table names in the database. + * + * @param string $schema + * the schema of the tables. Defaults to empty string, meaning the current or default schema. + * If not empty, the returned table names will be prefixed with the schema name. + * @return array all table names in the database. + */ + protected function findTableNames($schema = '') + { + if ($schema === '') { + $sql = <<db->createCommand($sql); - } else { - $sql = <<db->createCommand($sql); + } else { + $sql = <<db > createCommand($sql); - $command->bindParam(':schema', $schema); - } - - $rows = $command->queryAll(); - $names = array(); - foreach ($rows as $row) { - if ($schema === $this->getDefaultSchema() || $schema === '') { - $names[] = $row['TABLE_NAME']; - } else { - $names[] = $row['TABLE_SCHEMA'] . '.' . $row['TABLE_NAME']; - } - } - return $names; - } - - /** - * Builds a SQL statement for renaming a DB table. - * @param string $table the table to be renamed. The name will be properly quoted by the method. - * @param string $newName the new table name. The name will be properly quoted by the method. - * @return string the SQL statement for renaming a DB table. - * @since 1.1.6 - */ - public function renameTable($table, $newName) { - return 'ALTER TABLE ' . $this->quoteTableName($table) . ' RENAME TO ' . $this->quoteTableName($newName); - } - - /** - * Builds a SQL statement for changing the definition of a column. - * @param string $table the table whose column is to be changed. The table name will be properly quoted by the method. - * @param string $column the name of the column to be changed. The name will be properly quoted by the method. - * @param string $type the new column type. The {@link getColumnType} method will be invoked to convert abstract column type (if any) - * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. - * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. - * @return string the SQL statement for changing the definition of a column. - * @since 1.1.6 - */ - public function alterColumn($table, $column, $type) { - $type = $this->getColumnType($type); - $sql = 'ALTER TABLE ' . $this->quoteTableName($table) . ' MODIFY ' - . $this->quoteColumnName($column) . ' ' - . $this->getColumnType($type); - return $sql; - } - - /** - * Builds a SQL statement for dropping an index. - * @param string $name the name of the index to be dropped. The name will be properly quoted by the method. - * @param string $table the table whose index is to be dropped. The name will be properly quoted by the method. - * @return string the SQL statement for dropping an index. - * @since 1.1.6 - */ - public function dropIndex($name, $table) { - return 'DROP INDEX ' . $this->quoteTableName($name); - } - - /** - * Resets the sequence value of a table's primary key. - * The sequence will be reset such that the primary key of the next new row inserted - * will have the specified value or 1. - * @param CDbTableSchema $table the table schema whose primary key sequence will be reset - * @param mixed $value the value for the primary key of the next new row inserted. If this is not set, - * the next new row's primary key will have a value 1. - * @since 1.1.13 - */ - public function resetSequence($table, $value = 1) { - $seq = $table->name . "_SEQ"; - if ($table->sequenceName !== null) { - $this->db->createCommand("DROP SEQUENCE " . $seq)->execute(); - - $createSequenceSql = <<< SQL + $command = $this->db > createCommand($sql); + $command->bindParam(':schema', $schema); + } + + $rows = $command->queryAll(); + $names = array(); + foreach ($rows as $row) { + if ($schema === $this->getDefaultSchema() || $schema === '') { + $names[] = $row['TABLE_NAME']; + } else { + $names[] = $row['TABLE_SCHEMA'] . '.' . $row['TABLE_NAME']; + } + } + return $names; + } + + /** + * Builds a SQL statement for renaming a DB table. + * + * @param string $table + * the table to be renamed. The name will be properly quoted by the method. + * @param string $newName + * the new table name. The name will be properly quoted by the method. + * @return string the SQL statement for renaming a DB table. + * @since 1.1.6 + */ + public function renameTable($table, $newName) + { + return 'ALTER TABLE ' . $this->quoteTableName($table) . ' RENAME TO ' . $this->quoteTableName($newName); + } + + /** + * Builds a SQL statement for changing the definition of a column. + * + * @param string $table + * the table whose column is to be changed. The table name will be properly quoted by the method. + * @param string $column + * the name of the column to be changed. The name will be properly quoted by the method. + * @param string $type + * the new column type. The {@link getColumnType} method will be invoked to convert abstract column type (if any) + * into the physical one. Anything that is not recognized as abstract type will be kept in the generated SQL. + * For example, 'string' will be turned into 'varchar(255)', while 'string not null' will become 'varchar(255) not null'. + * @return string the SQL statement for changing the definition of a column. + * @since 1.1.6 + */ + public function alterColumn($table, $column, $type) + { + $type = $this->getColumnType($type); + $sql = 'ALTER TABLE ' . $this->quoteTableName($table) . ' MODIFY ' . $this->quoteColumnName($column) . ' ' . $this->getColumnType($type); + return $sql; + } + + /** + * Builds a SQL statement for dropping an index. + * + * @param string $name + * the name of the index to be dropped. The name will be properly quoted by the method. + * @param string $table + * the table whose index is to be dropped. The name will be properly quoted by the method. + * @return string the SQL statement for dropping an index. + * @since 1.1.6 + */ + public function dropIndex($name, $table) + { + return 'DROP INDEX ' . $this->quoteTableName($name); + } + + /** + * Resets the sequence value of a table's primary key. + * The sequence will be reset such that the primary key of the next new row inserted + * will have the specified value or 1. + * + * @param CDbTableSchema $table + * the table schema whose primary key sequence will be reset + * @param mixed $value + * the value for the primary key of the next new row inserted. If this is not set, + * the next new row's primary key will have a value 1. + * @since 1.1.13 + */ + public function resetSequence($table, $value = 1) + { + $seq = $table->name . "_SEQ"; + if ($table->sequenceName !== null) { + $this->db->createCommand("DROP SEQUENCE " . $seq)->execute(); + + $createSequenceSql = <<< SQL create sequence $seq start with $value increment by 1 nomaxvalue nocache SQL; - $this->db->createCommand($createSequenceSql)->execute(); - } - } - + $this->db->createCommand($createSequenceSql)->execute(); + } + } }