Revo-Doc: Resource Fields & Output Parameters - My Forums

Re: Revo-Doc: Resource Fields & Output Parameters

BobRay — Jun 07, 2011, 11:28 PM

To answer your question -- no, output modifiers never alter the DB - they just "modify" the "output" (hence the name)

Re: Revo-Doc: Resource Fields & Output Parameters

jobkingori — Jun 07, 2011, 04:39 AM

I think I fixed it ... but I’m not sure what exactly fixed it so I’ll just post ALL my changes Feel free to decide what was irrelevant.

So ... first of all. I conclude that output modifiers DON’T modify DB values, they just format ...

The changes were made to the Snippet calls ...

[[!UpdateProfile? &submitVar=`login-updprof-btn` ]]

[[!UpdateProfile? 
     &preHooks=`formatDobInput`
     &submitVar=`update-date-btn`
     &placeholderPrefix=`spc`
]]

I made two instances of update profile snippet call. Got this idea from something Mark H. pointed out about a posthook. (Though it was off) Figured that the prehook ran EVERYTIME I submitted even if I wasn’t editing the DOB ... so I made a normal snippet call and a special call for the DOB field.

That’s it.

That was the problem, the prehook kept running even when editing something that wasn’t needed.

Thanks guys. Hope this info helps someone else in the future.

Re: Revo-Doc: Resource Fields & Output Parameters

jobkingori — Jun 07, 2011, 03:43 AM

Question: Do output modifiers affecting the actual value in the DB?

I’m thinking that maybe I don’t need a posthook if the output modifier didn’t affect the value in the DB. The prehook however works well ... taking the dateformatted datepicker input and converting it to a unix timestamp (which modx uses to store the DOB). I can confirm this because a submit of the DOB value without the prehook results in an error and ok with the prehook. The chosen value is even visible in the backend.

So ... what you’ve pointed out about the posthook could be true if the output modifier actually modifies DB content ... and in that case makes sense since the prehook runs everytime I hit submit ... could be the reason why the date field goes blank.

Just a thought.

Thanks for your help btw Much appreciated.

Re: Revo-Doc: Resource Fields & Output Parameters

markh — Jun 06, 2011, 10:24 AM

You’re not supposed to be using the posthook to display it, but to reformat it to a format the database understands.. So the reverse of your prehook.

Re: Revo-Doc: Resource Fields & Output Parameters

jobkingori — Jun 06, 2011, 10:15 AM

The ’[’ is there on my end. That was a mistake in pasting the code here ...

This is my prehook ...

getValue('dob');
  $hook->setValue('dob',strtotime($dob));
  return true;
?>

I guess a posthook would work, to format the timestamp for display just like an output modifier ... however the output modifiers were made to do just that ... format the output ... the DB stores the timestamp ... hence the prehook to format my datepicker input into a timestamp, as is in the above snippet ....

UPDATE:

Uncached mobilephone number and changed the email ... the mobile number stays and the dob went blank ... same thing when i edit mobile number ... dob goes blank .... email stays.

Re: Revo-Doc: Resource Fields & Output Parameters

markh — Jun 06, 2011, 09:58 AM

Would need to see your prehook.

You’re missing one [ in your dob value.

And make sure *all* placeholders that deal with dynamic data are called uncached..

I suspect you will need a posthook as well (tho I’m not familiar with the profile update snippet) to reformat the date into the syntax the database is expecting... I think that’s a unix timestamp.

Re: Revo-Doc: Resource Fields & Output Parameters

jobkingori — Jun 06, 2011, 09:53 AM

Ok ... it works with the ’!’ so that’s what I’ve been using ... thanks for the explanation. It has helped understand things a little more.

I have a page with many fields (in forms) and I put a submit button for each field instead of having the user fill all the fields then submit all at once. (see code below) And I have just ONE updateprofile snippet call ... because each form button is within

html tags so I assume that the button only updates the fields that are in that form in which the button contains.

Problem is that when I update another field its only the DOB field that is emptied ... please note that other fields are not affected JUST the dob.

I have a prehook that formatts the input from a datepicker into a timestamp ... lemme put some of the code below

My snippet call

[[!UpdateProfile?
  &preHooks=`formatDobInput`
]]

Examples of two form on the same page ... (I did this to allow the user submit one field at a time instead of the whole form)

  
  
  
    [[+error.message]]
    
      
      Date Of Birth (d-m-Y): * 
      
      
    
  

  
  
    [[+error.message]]
    
      
      [[!%login.mobilephone]] [[+error.mobilephone]] 
      
      
    
  

  
  
    [[+error.message]]
    
      
      [[!%login.email]] [[+error.email]]

So ... lets say I wanna change the email ... that works without affecting mobilephone number BUT dob goes blank. I can also change mobile phone number without affecting email. I can also set dob without affecting email or mobilephone ... so I’ve been racking my brain as to why the dob keeps getting blanked out when I update other fields.

I thought its coz I had ’!’ in my [[!+dob:date=`%a %b %e, %Y`]] call ... but if I put [[+dob:date=`%a %b %e, %Y`]] without the ! I get a blank ...

I also thought that maybe my problems were because of the prehook.

Any insight?

Been on this the whooooole day :-(

Re: Revo-Doc: Resource Fields & Output Parameters

markh — Jun 06, 2011, 09:19 AM

In the case where it will not work, you will see that your snippet is called uncached ( [[! ]] ) where as you were caching your placeholder ( [[+ ]] ). The way parsing works is that it first goes through all cached objects and replaces it with its value (or even better: it already did that when the cache was written). Only after that it will parse the uncached snippet.

Calling both the snippet and placeholder uncached is the way to go in this case.

Re: Revo-Doc: Resource Fields & Output Parameters

jobkingori — Jun 06, 2011, 09:11 AM

Anyone with ideas as to why an output modifier would not work ... or rather not display anything? (blank)

I set the date (dob) in the backend (user manager) and called it like this (gave me a blank result on the front-end)

[[+dob:date=`%a %b %e, %Y`]]

And when I call this (with the exclamation mark)

[[!+dob:date=`%a %b %e, %Y`]]

it displays.

My snippet call is ...

[[!UpdateProfile?
  &preHooks=`formatDobInput`
]]

The format date prehook simply takes in dob input from a datepicker and converts it to a timestamp.

I also have another problem where the date disappears when I edit/submit another form on the same page ... anyone with ideas about this?

Re: Revo-Doc: Resource Fields & Output Parameters

BobRay — Mar 03, 2011, 03:50 PM

FWIW, the correct term for them is "output modifiers." There’s only one output filter, which can process all the different modifiers. I’ve edited the documentation page to try to make that clearer.

The section on caching that confused you shouldn’t really be on that page at all. It doesn’t seem to have anything to do with output modifiers. I’d remove it, but it should go somewhere and I don’t know where to put it.

Note that, in theory, the output modifiers can be used with any MODx tag.