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Customising the CMS /

Basic Data Model Question


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5 Posts   575 Views

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SamTheJarvis

Community Member, 24 Posts

3 June 2011 at 7:28am

Hi Guys,

Could someone perhaps give me a hand here,

I have a gallery of photos, each photo has a category, and a category has a category holder.

In the category holder, a selected image is used to represent each category, and is displayed on the category holder. I have this working fine like so:

   public function CategoryPhotos() {
      $categories = DataObject::get("PhotoCategory");
      $primaryphotos = new DataObjectSet();
      foreach($categories as $category){
         $photo = DataObject::get_one("Photo", "ID=".$category->PrimaryPhotoID);
         $primaryphotos->push($photo);
      }
      return $primaryphotos;
   }

Basically, I want to also include the link and title of that category in the dataobjectset, so I can use it in the template, so the user can click through to the photo category.

Some help here would be grandly appreciated!

Thanks

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martimiz

Forum Moderator, 1132 Posts

11 June 2011 at 11:36pm

A simpler way to do this is move the function to retrieve the first photo from the CategoryHolder to the CategoryPage class itself (note: not the page controller!). Something like this:

function FirstImage() {
   return DataObject::get_one('Photo', "ID = $this->ID");
}

Then in your CategoryHolder template you can do something like this (assuming Photo has_many Images called 'Image'):

<% control Categories %>
   <a href="$Link">
   <% control FirstImage %>
      $Image.setWidth(100)
   <% end_Control %>
   </a>
<% end_control %>

Avatar
SamTheJarvis

Community Member, 24 Posts

12 June 2011 at 3:59am

I tried that before! Still, it's not working, the title and link is being displayed, but the photo isn't.

<% control Categories %>
   <a href="$Link">
      $Title
      <% control PrimaryPhoto %>
      $ImageFile
      <% end_control %>
      </a>
<% end_control %>

PhotoCategory has many dataobjects called Photo, and photo has the fields: ImageFile and Caption.

In my PhotoCategory_Controller:

   public function PrimaryPhoto() {
      return DataObject::get_one("Photo", "ID=".$this->PrimaryPhotoID);
   }

This returns the selected (primary) photo on the PhotoCategory page, but not in any nested controls.

Any ideas?

Avatar
martimiz

Forum Moderator, 1132 Posts

12 June 2011 at 5:38am

As I mentioned: don't put the function in your PhotoCategory_Controller, but in the PhotoCategory (page) class itself :-)

Althoug the template is handled by your CategoryHolder_Controller, the control structure <% control Categories %> will only return a bunch of PhotoCategory Pages (= DataObjects) and NOT their controllers, so every method in the PhotoCategory_Controller is out of reach within this template...

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SamTheJarvis

Community Member, 24 Posts

12 June 2011 at 6:04am

A WHOLE LOAD OF THINGS JUST MADE SENSE.

Thank you martimiz!