Refactored Doctrine_Connection

lib/Doctrine/Connection.php

@@ -223,16 +223,38 @@ abstract class Doctrine_Connection extends Doctrine_Configurable implements Coun
         $query          = 'DELETE FROM '. $table . ' WHERE ' . implode(' AND ', $condition);
         $affectedRows   = $this->dbh->exec($query);
 
-        $insert = implode(', ', array_keys($values));
-        $query  = 'INSERT INTO ' . $table . ' (' . $insert . ') VALUES (' . substr(str_repeat('?, ', count($values)), 0, -2) . ')';
-        $stmt   = $this->dbh->prepare($query);
-        $stmt->execute($values);
+        $this->insert($table, $values);
 
         $affectedRows++;
 
 
         return $affectedRows;
     }
+    /**
+     * Inserts a table row with specified data.
+     *
+     * @param string $table     The table to insert data into.
+     * @param array $values     An associateve array containing column-value pairs.
+     * @return boolean
+     */
+    public function insert($table, array $values = array()) {
+        if(empty($values))
+            return false;
+
+        // column names are specified as array keys
+        $cols = array_keys($values);
+
+        // build the statement
+        $query = "INSERT INTO $table "
+               . '(' . implode(', ', $cols) . ') '
+               . 'VALUES (' . substr(str_repeat('?, ', count($values)), 0, -2) . ')';
+
+        // prepare and execute the statement
+        $stmt   = $this->dbh->prepare($query);
+        $stmt->execute(array_values($values));
+
+        return true;
+    }
     /**
      * returns the next value in the given sequence
      *
@@ -427,36 +449,14 @@ abstract class Doctrine_Connection extends Doctrine_Configurable implements Coun
      * saves all the records from all tables
      * this operation is isolated using a transaction
      *
+     * @throws PDOException         if something went wrong at database level
      * @return void
      */
     public function flush() {
         $this->beginTransaction();
-        $this->saveAll();
+        $this->unitOfWork->saveAll();
         $this->commit();
     }
-    /**
-     * saveAll                      
-     * persists all the records from all tables
-     *
-     * @return void
-     */
-    private function saveAll() {
-        $tree = $this->unitOfWork->buildFlushTree($this->tables);
-
-        foreach($tree as $name) {
-            $table = $this->tables[$name];
-
-            foreach($table->getRepository() as $record) {
-                $this->save($record);
-            }
-        }
-        foreach($tree as $name) {
-            $table = $this->tables[$name];
-            foreach($table->getRepository() as $record) {
-                $this->unitOfWork->saveAssociations($record);
-            }
-        }
-    }
     /**
      * clear
      * clears all repositories
@@ -503,6 +503,10 @@ abstract class Doctrine_Connection extends Doctrine_Configurable implements Coun
     /**
      * beginTransaction
      * starts a new transaction
+     *
+     * this method can be listened by onPreBeginTransaction and onBeginTransaction
+     * listener methods
+     *
      * @return void
      */
     public function beginTransaction() {
@@ -579,6 +583,7 @@ abstract class Doctrine_Connection extends Doctrine_Configurable implements Coun
         $record->getTable()->getListener()->onDelete($record);
 
         $this->commit();
+        
         return true;
     }
     /**

lib/Doctrine/Connection/Transaction.php

@@ -282,7 +282,7 @@ class Doctrine_Connection_Transaction implements Countable, IteratorAggregate {
     /**
      * inserts a record into database
      *
-     * @param Doctrine_Record $record
+     * @param Doctrine_Record $record   record to be inserted
      * @return boolean
      */
     public function insert(Doctrine_Record $record) {
@@ -296,26 +296,17 @@ class Doctrine_Connection_Transaction implements Countable, IteratorAggregate {
 
         $table     = $record->getTable();
         $keys      = $table->getPrimaryKeys();
-
-
             
 
         $seq = $record->getTable()->getSequenceName();
 
         if( ! empty($seq)) {
-            $id             = $this->getNextID($seq);
+            $id             = $this->nextId($seq);
             $name           = $record->getTable()->getIdentifier();
             $array[$name]   = $id;
         }
 
-        $strfields = join(", ", array_keys($array));
-        $strvalues = substr(str_repeat("?, ", count($array)), 0, -2); 
-        $sql  = "INSERT INTO ".$record->getTable()->getTableName()." (".$strfields.") VALUES (".$strvalues.")";
-
-        $stmt = $this->conn->getDBH()->prepare($sql);
-
-        $stmt->execute(array_values($array));
-        
+        $this->conn->insert($table->getTableName(), $array);
 
         if(count($keys) == 1 && $keys[0] == $table->getIdentifier()) {
             $id = $this->conn->getDBH()->lastInsertID();

lib/Doctrine/Connection/UnitOfWork.php

@@ -142,6 +142,7 @@ class Doctrine_Connection_UnitOfWork implements IteratorAggregate, Countable {
      * saveRelated
      * saves all related records to $record
      *
+     * @throws PDOException         if something went wrong at database level
      * @param Doctrine_Record $record
      */
     public function saveRelated(Doctrine_Record $record) {
@@ -185,6 +186,7 @@ class Doctrine_Connection_UnitOfWork implements IteratorAggregate, Countable {
      * 3, 4 and 5, this method would first destroy the associations to 1 and 2 and then
      * save new associations to 4 and 5
      *
+     * @throws PDOException         if something went wrong at database level
      * @param Doctrine_Record $record
      * @return void
      */
@@ -200,6 +202,7 @@ class Doctrine_Connection_UnitOfWork implements IteratorAggregate, Countable {
      * deletes all related composites
      * this method is always called internally when a record is deleted
      *
+     * @throws PDOException         if something went wrong at database level
      * @return void
      */
     public function deleteComposites(Doctrine_Record $record) {
@@ -213,6 +216,35 @@ class Doctrine_Connection_UnitOfWork implements IteratorAggregate, Countable {
             endswitch;
         }
     }
+    /**
+     * saveAll                      
+     * persists all the pending records from all tables
+     *
+     * @throws PDOException         if something went wrong at database level
+     * @return void
+     */
+    public function saveAll() {
+        // get the flush tree
+        $tree = $this->buildFlushTree($this->conn->getTables());
+
+        // save all records
+        foreach($tree as $name) {
+            $table = $this->conn->getTable($name);
+
+            foreach($table->getRepository() as $record) {
+                $this->conn->save($record);
+            }
+        }
+        
+        // save all associations
+        foreach($tree as $name) {
+            $table = $this->conn->getTable($name);
+
+            foreach($table->getRepository() as $record) {
+                $this->saveAssociations($record);
+            }
+        }
+    }
     public function getIterator() { }
 
     public function count() { }