X-Git-Url: https://delta.frontaccounting.com/gitweb/?a=blobdiff_plain;f=includes%2Fhooks.inc;h=609eac31203b49b4a2efdac51f2aaf54d1161232;hb=630e99edecc3eabe708a9e7bda94eaa60bf16db7;hp=fedbc4c22cf8d4b59eefd209c1d2ffe605aff432;hpb=f8f29c33f36dda542da9ad33fdfcf6849fcd9a1d;p=fa-stable.git

diff --git a/includes/hooks.inc b/includes/hooks.inc
index fedbc4c2..609eac31 100644
--- a/includes/hooks.inc
+++ b/includes/hooks.inc
@@ -93,6 +93,19 @@ class hooks {
 //		return array($security_areas, $security_sections);
 	}
 
+	//
+	//	Invoked for all modules before page header is displayed
+	//
+	function pre_header($fun_args)
+	{
+	}
+	//
+	//	Invoked for all modules before page footer is displayed
+	//
+	function pre_footer($fun_args)
+	{
+	}
+
 	//
 	// Price in words. $doc_type is set to document type and can be used to suppress 
 	// price in words printing for selected document types.
@@ -103,6 +116,7 @@ class hooks {
 	function price_in_words($amount, $doc_type)
 	{
 	}
+
 	//
 	// Exchange rate currency $curr as on date $date.
 	// Keep in mind FA has internally implemented 3 exrate providers
@@ -177,42 +191,69 @@ class hooks {
 	{
 		return true;
 	}
+
+	/*
+	 * Returns the quantity allowed to be dispatched for a particular item 
+	 * and a status (which can be used to style the row).
+	 * This quantity would be the default value on the delivery note.
+	 * The usual use case for this is when a item is in stock,
+	 * but has been reserved by someone else.
+	 * This allows extensions to implements its own priority algorithm.
+	 * This function is by detail_id and not item in case the item is present
+	 * more than one in  the cart.
+	 */
+	/* Default behavior check if there is enough quantity on hand and change the css
+ 	 * class if needed */
+	static function  default_get_dispatchable_quantity($line_item, $location, $date, $qoh) {
+    	global $SysPrefs;
+
+		if ($SysPrefs->allow_negative_stock() || ($line_item->qty_dispatched <= $qoh)) {
+			return true;
+		}
+		return array($qoh, 'stockmankobg');
+	}
+
 }
 
 /*
 	Installs hooks provided by extension modules
 */
-function install_hooks()
+function install_hooks($lang_code=null)
 {
 	global $path_to_root, $Hooks, $installed_extensions;
 
 	$Hooks = array();
-	
 	// include current language related $Hooks object if locale file exists
-	if (file_exists($path_to_root . "/lang/".$_SESSION['language']->code."/locale.inc"))
+	if (!$lang_code)
+		$lang_code = $_SESSION['language']->code;
+	$lang_code  = clean_file_name($lang_code);
+
+	if (file_exists($path_to_root . "/lang/" . $lang_code . "/locale.inc"))
 	{
-		include_once($path_to_root . "/lang/".$_SESSION['language']->code."/locale.inc");
-		$code = $_SESSION['language']->code;
+		include_once($path_to_root . "/lang/" . $lang_code . "/locale.inc");
+		$code = $lang_code;
 		$hook_class = 'hooks_'.$code;
 		$Hooks[$code] = new $hook_class;
 		unset($code, $hook_class);
 	}
 	// install hooks provided by active extensions
-	foreach($installed_extensions as $ext) {
+	if (isset($installed_extensions) && !empty($installed_extensions)) {
+		foreach($installed_extensions as $ext) {
 			$hook_class = 'hooks_'.$ext['package'];
 			if ($ext['active'] && class_exists($hook_class)) {
 				$Hooks[$ext['package']] = new $hook_class;
 			}
+		}	
 	}
 }
 /*
 	Non active hooks are not included in $Hooks array, so we can use special function to 
 	activate.
 */
-function activate_hooks($ext, $comp)
+function activate_hooks($ext, $comp, $on=true)
 {
 	global $Hooks;
-	
+
 	$hooks = @$Hooks[$ext];
 	if (!$hooks) {
 		$hookclass = 'hooks_'.$ext;
@@ -223,8 +264,10 @@ function activate_hooks($ext, $comp)
 	}
 	if (!$hooks)
 		return false;
-	else
+	elseif ($on)
 		return $hooks->activate_extension($comp, false);
+	else
+		return $hooks->deactivate_extension($comp, false);
 }
 /*
 	Calls hook $method defined in extension $ext (if any)
@@ -252,17 +295,20 @@ function hook_invoke_all($method, &$data, $opts=null)
 	global $Hooks;
 	
 	$return = array();
-	foreach($Hooks as $ext => $hook)
-		if (method_exists($hook, $method)) {
-			set_ext_domain('modules/'.$ext);
-			$result = $hook->$method($data, $opts);
-			if (isset($result) && is_array($result)) {
-				$return = array_merge_recursive($return, $result);
-			} else if (isset($result)) {
-				$return[] = $result;
-				}
-		}
-	set_ext_domain();
+	if (isset($Hooks))
+	{
+		foreach($Hooks as $ext => $hook)
+			if (method_exists($hook, $method)) {
+				set_ext_domain('modules/'.$ext);
+				$result = $hook->$method($data, $opts);
+				if (isset($result) && is_array($result)) {
+					$return = array_merge_recursive($return, $result);
+				} else if (isset($result)) {
+					$return[] = $result;
+					}
+				set_ext_domain();
+			}
+	}
 	return $return;
 }
 /*
@@ -272,17 +318,17 @@ function hook_invoke_first($method, &$data, $opts=null)
 {
 
 	global $Hooks;
-	
+
 	$result = null;
 	foreach($Hooks as $ext => $hook) {
 		if (method_exists($hook, $method)) {
 			set_ext_domain('modules/'.$ext);
 			$result = $hook->$method($data, $opts);
+			set_ext_domain();
 			if (isset($result))
 				break;
 		}
 	}
-	set_ext_domain();
 	return $result;
 }
 /*
@@ -300,11 +346,11 @@ function hook_invoke_last($method, &$data, $opts=null)
 		if (method_exists($hook, $method)) {
 			set_ext_domain('modules/'.$ext);
 			$result = $hook->$method($data, $opts);
+			set_ext_domain();
 			if (isset($result))
 				break;
 		}
 	}
-	set_ext_domain();
 	return $result;
 }
 //------------------------------------------------------------------------------------------
@@ -399,3 +445,19 @@ function hook_authenticate($login, $password)
 {
 	return hook_invoke_last('authenticate', $login, $password);
 }
+
+	/*
+	 * Returns the quantity allowed to be dispatched for a particular item 
+	 * and a "reason" (css classes).
+	 * This quantity would be the default value on the delivery note.
+	 * The usual use case for this is when a item is in stock,
+	 * but has been reserved by someone else.
+	 * This allows extensions to implements its own priority algorithm.
+	 * This function is by detail_id and not item in case the item is present
+	 * more than one in  the cart.
+	 * If 'skip' is returned, the line will be skipped and not displayed
+	 */
+function hook_get_dispatchable_quantity($line_item, $location, $date, $qoh) {
+		$result =  hook_invoke_first('get_dispatchable_quantity', $line_item, array($location, $date, $qoh));
+		return $result !== null ? $result : hooks::default_get_dispatchable_quantity($line_item, $location, $date, $qoh);
+}