Updated query classes in order to support prepared statements - added support for parameter binding. Added unit tests for mssql select using new prepared statement syntax.

git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0-DB@8511 201d5d3c-b55e-5fd7-737f-ddc643e51545

classes/db/queryparts/Query.class.php

@@ -11,12 +11,8 @@
 		var $orderby;
 		var $limit;
 		
-		var $arguments = array();
-		
-		function addArgument($argument){
-			$this->arguments[] = $argument;
-		}
-		
+		var $arguments = null;
+				
 		function setQueryId($queryID){
 			$this->queryID = $queryID;
 		}
@@ -202,6 +198,35 @@
 		function getFirstTableName(){
 			return $this->tables[0]->getName();			
 		}
+		
+		function getArguments(){
+			if(!isset($this->arguments)){
+				$this->arguments = array();
+				
+				// Column arguments
+				foreach($this->columns as $column){
+					if($column->show()){
+						$arg = $column->getArgument();
+						if($arg) $this->arguments[] = $arg;
+					}
+				}			
+				
+				// Condition arguments
+				if(count($this->conditions) > 0)
+					foreach($this->conditions as $conditionGroup){
+						$args = $conditionGroup->getArguments();
+						if(count($args) > 0) $this->arguments = array_merge($this->arguments, $args);
+					}
+							
+				// Navigation arguments
+				if(count($this->orderby) > 0)
+					foreach($this->orderby as $order){
+						$args = $order->getArguments();
+						if(count($args) > 0) $this->arguments = array_merge($this->arguments, $args);
+					}
+			}
+			return $this->arguments;
+		}
 	}
 
 

classes/db/queryparts/condition/Condition.class.php

@@ -23,6 +23,11 @@
 			return is_a($this->argument, 'Argument');
 		}
 		
+		function getArgument(){
+			if($this->hasArgument()) return $this->argument;
+			return null;
+		}
+		
 		function toString($withValue = true){
 			if($withValue)
 				return $this->toStringWithValue();

classes/db/queryparts/condition/ConditionGroup.class.php

@@ -31,5 +31,16 @@
 				
 			return $group;
 		}
+		
+		function getArguments(){
+			$args = array();
+			foreach($this->conditions as $condition){
+				if($condition->show()){
+					$arg = $condition->getArgument();
+					if($arg) $args[] = $arg;
+				}
+			}			
+			return $args;
+		}
 	}
 ?>

classes/db/queryparts/expression/InsertExpression.class.php

@@ -26,6 +26,10 @@
 			if(!isset($value)) return false;
 			return true;
 		}
+		
+		function getArgument(){
+			return $this->argument;
+		}
 	}
 
 ?>

classes/db/queryparts/expression/SelectExpression.class.php

@@ -28,5 +28,9 @@
 		function show() {
 			return true;
 		}
+		
+		function getArgument(){
+			return null;
+		}
 	}
 ?>

classes/db/queryparts/expression/StarExpression.class.php

@@ -12,5 +12,9 @@
 		function StarExpression(){
 			parent::SelectExpression("*");
 		}
+		
+		function getArgument(){
+			return null;
+		}
 	}
 ?>

classes/db/queryparts/expression/UpdateExpression.class.php

@@ -40,6 +40,10 @@
 			if(!$this->argument->getValue()) return false;
 			return true;
 		}
+		
+		function getArgument(){
+			return $this->argument;
+		}
 	}
 
 

classes/db/queryparts/order/OrderByColumn.class.php

@@ -14,6 +14,14 @@
 			$result .= is_a($this->sort_order, 'Argument') ? $this->sort_order->getValue() : $this->sort_order;
 			return $result;
 		}
+		
+		function getArguments(){
+			$args = array();
+			if(is_a($this->column_name, 'Argument'))
+				$args[]= $this->column_name;
+			if(is_a($this->sort_order, 'Argument'))
+				$args[] = $this->sort_order; 
+		}
 	}
 
 ?>

classes/xml/xmlquery/QueryParser.class.php

@@ -109,6 +109,7 @@ class QueryParser {
 		
 		$this->setTableColumnTypes($tables);
 		
+		// TODO Check if this work with arguments in join clause
 		$arguments = array();
 		if($columns)
 			$arguments = array_merge($arguments, $columns->getArguments());
@@ -122,7 +123,6 @@ class QueryParser {
 			$prebuff .= sprintf("$%s_argument->setColumnType('%s');\n"
 				, $argument->getArgumentName()
 				, $this->column_type[$this->getQueryId()][$argument->getColumnName()] );
-			$prebuff .= sprintf('$query->addArgument($%s_argument);', $argument->getArgumentName());
 			}
 		}
 		$prebuff .= "\n";

classes/xml/xmlquery/argument/Argument.class.php

@@ -14,6 +14,10 @@
 			$this->isValid = true;
 		}
 		
+		function getName(){
+			return $this->name;
+		}
+		
 		function getValue(){
 			if(is_array($this->value)) return implode(',', $this->value);
 			return $this->value;