If you want to modify ZenTao, you should where the corresponding codes are. Now you have an understanding of ZenTao’s directory structure, so let’s look ar how ZenTao requests can be corresponded to the codes.

1. Locate the method of control

The control method is an entry to on each page. Let’s look at an example bug-browse-1.html or /?m=bug&f=browse&productID=1&t=html. bug-browse-1.html is the browsing method to visit the bug module; 1 is the first parameter and html is the type to access to the page. Similarly, /?m=bug&f=browse&productID=1&t=html,"m" means the name of the module," f" the name of the method and the following is the parameter list. Then you can find the source code in ZenTao -browsing method in module/bug/control.php.

2. Calling control

Now that we have know where the the entry function is, let’s look at what is in it.

$this->bug means calling model in the bug module. The corresponding file is module/bug/model.php.

this->loadmoel ('tree')->xxx means loading model of the tree and its corresponding file is in module/tree/model.php..

$this->app->loadClass('pager') means loading a lib and its corresponding file is in lib/pager/pager.class.php.
$this->lang->bug->xxx: its definition is in module/bug/lang/zh-cn.php and the zh-cn is determined by the operating language of the current user.
$this->display() calls the template file which has the same name as the current method in the directory of View. For example, the corresponding template file to view bugs is module/bug/view/browse.html.php.