php - Zend Framework: What are the differences between init() and preDispatch() functions in controller objects? -


I think the order of execution is init (), preDispatch () and then the verb () is called.

  1. Should I initialize my variable, which is common in all functions, init () or preDispatch ()? I have seen people using both functions for initialization, probably as the name indicates that it should be done init (), but what type of content will be in predispatch ()?

  2. What is the function call between init () and preDispatch ()?

ago preDispatch () to < Code is called for example> Zend_Controller_Plugin_Abstract . Here you have the request and feedback object, so you can make the filter or some preparation using the information from the request.

Init () 's Zend_Controller_Action has been given the name as part of the constructor. The signature of the constructor ( Zend_Controller_Action :: __contract () ) is to assist you in initializing your controller without overriding and repeating.

Controller's preDispatch) The method here is called $ request-> to leave the current code. Set despatched (incorrect) - Not sure that you can do this init ()

Then your action method (for example, ViewAction () ).

The difference now should be clear:

  • If you want to execute something before you, then all actions - keep it in plug-in and use a hook (< In addition to code> preDispatch () there routeStartup more),
  • if you want to first ,
  • if only one The only action - to take action - is the only action.
    • > > init or preDispatch () Ul>

    init () and What happens between preDispatch () function call?

    Almost nothing - Pre Dispatch () is executed, and if you have $ request-> If set is not specified (wrong) , then the action is executed.


Comments

Post a Comment

Popular posts from this blog

sql - dynamically varied number of conditions in the 'where' statement using LINQ -

I am using my first project LINQ (in mvc), so maybe there's something very simple that I remember. However, a day of searching and experimenting does not work, so it works. I am trying to write a LINQ query (Linux to SQL) in which in many cases where the statement is different from an OR or an AND. We do not know how many conditions are going in the query till runtime. This search is for filter control, where the user can choose multiple criteria for filtering. Select from table where table.col = 1 or table.col = 2 or table.col = 7 .... 'Other number of conditions Before I just create the SQL query as a string, while looping over all the situations. However, it seems that there should be a good way to do this in LINQ. I tried to use Expression trees, but they had a second thought for this moment on my head, where the lambda function was to be executed inside the statement such as: values ​​for matchingRows = matchingRows for each value Where (function (row) row.c...
Read more

asp.net mvc - Dynamically Generated Ajax.BeginForm -

I have a problem with ASP.NET MVC Ajax forms. I generate many Ajax form in a table such as: & Lt; Input type = "submit" name = "activity" value = "add activity" / & gt; & Lt;%}% & gt; & Lt; / TD & gt; & Lt; / TR & gt; & Lt;%}% & gt; So far so good. When I post one of those forms, it gives a partial view in a div, and in this new partial view a new Ajax Beginnform (which is not in Genesis form) This second Ajax Beginnorf is exactly like the ones I got on the table, but when I post it, I do not get the "Ajax Post", but a normal post that sends me to a new page, I do not know whether the two Ajax forms What is the reason for the difference between, why is it the "dynamically generated" Ajax form behaves like a normal HTML form? By the way, I know that I can do it in different ways using javascript, but I would like to understand whether it can only be done using MVC helplars and Ajax lib...
Read more

Debug on symbian -

I am using trk for phone debug This works well for the Holorld project But when I start the project in phone debug mode 1) the load failed 2) TrkProtocolPlugin: to target the specified file Failure (please verify If any body understands what problem I am experiencing, then this problem helps me Pre-release If the application has the privileges assigned (with the appropriate certificate) itemprop = "text" > In your case, I will check: / li> If there is no conflict of application ID with any other application of device If there are problematic commands in the installation package (for example copy copy for non-accessible directories)
Read more