enhanced InvalidKeyException messages

Doctrine/Query.php

@@ -38,11 +38,11 @@ class Doctrine_Query extends Doctrine_Hydrate {
 		$where = $this->where;
 		$having = $this->having;
 		
-		$q = "SELECT COUNT(1) FROM ".$table." ";
+		$q = "SELECT COUNT(1) FROM ".$table->getComponentName()." ";
 		foreach($join as $j) {
 			$q .= implode(" ",$j);
 		}
-        $string = $query->applyInheritance();
+        $string = $this->applyInheritance();
 
         if( ! empty($where)) {
             $q .= " WHERE ".implode(" AND ",$where);
@@ -56,7 +56,7 @@ class Doctrine_Query extends Doctrine_Hydrate {
 		if( ! empty($having)) 
 			$q .= " HAVING ".implode(' AND ',$having);
 
-		$a = $this->table->getSession()->execute($q, $params)->fetch(PDO::FETCH_NUM);
+		$a = $this->getSession()->execute($q, $params)->fetch(PDO::FETCH_NUM);
 		return $a[0];		
 	}
     /**

Doctrine/Table.php

@@ -398,7 +398,7 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable {
      */
     final public function getBound($name) {
         if( ! isset($this->bound[$name]))
-            throw new InvalidKeyException();
+            throw new InvalidKeyException('Unknown bound '.$name);
 
         return $this->bound[$name];
     }
@@ -414,7 +414,7 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable {
                 return $this->bound[$k];
             }
         }
-        throw new InvalidKeyException();
+        throw new InvalidKeyException('Unknown bound '.$name);
     }
     /**
      * returns the alias for given component name
@@ -438,7 +438,7 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable {
         if($name = array_search($this->boundAliases,$alias))
             return $name;
 
-        throw new InvalidKeyException();
+        throw new InvalidKeyException('Unknown alias '.$alias);
     }
     /**
      * unbinds all relations
@@ -480,7 +480,7 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable {
      */
     final public function bind($name,$field,$type,$localKey) {
         if(isset($this->relations[$name]))
-            throw new InvalidKeyException();
+            throw new InvalidKeyException('Relation already set for '.$name);
 
         $e          = explode(" as ",$name);
         $name       = $e[0];
@@ -540,6 +540,8 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable {
      * @return Doctrine_Relation
      */
     final public function getForeignKey($name) {
+        $original = $name;
+
         if(isset($this->relations[$name]))
             return $this->relations[$name];
 
@@ -614,7 +616,7 @@ class Doctrine_Table extends Doctrine_Configurable implements Countable {
             $this->relations[$alias] = $relation;
             return $this->relations[$alias];
         }
-        throw new InvalidKeyException();
+        throw new InvalidKeyException('Unknown relation '.$original);
     }
     /**
      * returns an array containing all foreign key objects