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question add image template - noob
14 July 2011 at 6:40am Last edited: 14 July 2011 6:42am
Hi I'm new to using silverstripe and I have a question
how do I show all images that are inside a folder in the template, and that if I change an image by a tab
automaticamanete change to the template?pd: sorry for my english
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Re: question add image template - noob
15 July 2011 at 3:21am
I've done something like that to parse a CSV upload and automatically attach images to a dataobject. No real reason you couldn't do something like that right on a page object, though it may not be the most efficient way to do it.
First you need to add a has one relation to your DataObject ( in this case I assume it would be a page)
static $has_one = array (
//Folder
"ImageFolder" => "SiteTree"
);The CMSField would look something like this
$fields->addFieldToTab("Root.Main", new TreeDropdownField('ImageFolderID', 'Image Folder', "Folder"));
Basically you're adding a new drop down field with the names of only FoldersThen you'd need a function to get the images in that folder
function GetMyImages(){
$folderID=$this->ImageFolderID;
// get images in the folder $folderIF
$images = DataObject::get("File", "ParentID ='$folderID');if ($images) {
return $images;
} else {
return false;
}That should work, I haven't tested it though, just going off the top of my head. Like I said I was parsing a CSV file to attach specific images to a dataobject. You should be able to access that in a template with:
<% control GetMyImages %>
$Image
<% end_control %>You may run into problems if you have non images in the folder and you may need to filter out the images in the $images dataobject
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Re: question add image template - noob
15 July 2011 at 5:15am
hI zenmonkey, thx for you reply
add the tab main in the site tree , but when I select the folder shows nothing
this is mi php
<?php
/**
* Defines the HomePage page type
*/class HomePage extends Page {
static $db = array(
);
static $has_one = array(
"ImageFolder" => "SiteTree"
);public function getCMSFields() {
$fields = parent::getCMSFields();
$fields->addFieldToTab("Root.Main", new TreeDropdownField('ImageFolderID', 'Image Folder', "Folder"));
return $fields;
}
}class HomePage_Controller extends Page_Controller {
function GetMyImages(){
$folderID=$this->ImageFolderID;
// get images in the folder $folderIF
$images = DataObject::get("File", "ParentID =$3");if ($images) {
return $images;
} else {
return false;
}
}
} -
Re: question add image template - noob
15 July 2011 at 6:16am
You do have an error in your code (as does my original, i forgot the closing quote)
$images = DataObject::get("File", "ParentID =$3");
Should be$images = DataObject::get("File", "ParentID ='$folderID'");
Beyond that I just realized GetMyImages doesn't return the DataObject as an Image and therefor doesn't generate the tag for you. You need to use $Tag instead of $Image in your template or build the tag yourself <img src="$Filename" width="$Width" height="$Height" />
This isn't ideal, but maybe someone else has an easier way of converting the DataObject into a set of Images. The Gallery module may have some hints
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Re: question add image template - noob
15 July 2011 at 7:43am Last edited: 15 July 2011 8:02am
when I select the folder "Uploads" shows nothing :'c
and in the template the control only show 3 items found within the assets folder and not in uploads.<img src="/assets/error-404.html" alt="error-404.html" />
<img src="/assets/error-500.html" alt="error-500.html" />
<img src="/assets/Uploads/" alt="Uploads" />These are the archives showing
pd: sry for the problems :'c
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Re: question add image template - noob
15 July 2011 at 8:00am
Are there images in the folder? Personally I'd recommend creating a separate folder to draw from. And make sure if you've uploaded via FTP to go the Files and Images tab and search for new images. You could also change
$images = DataObject::get("File", "ParentID ='$folderID'");
to$images = DataObject::get("File", "ParentID ='$folderID' AND ClassName='Image'");
That should restrict it to only looking for Images and prevent it returning any subfolders and other files -
Re: question add image template - noob
15 July 2011 at 8:40am
thx, this works!!!
have a question, when add the images for a tab, that displays a pop up, in this add the external link.
I must add the control to select the image that takes me to that address
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Re: question add image template - noob
15 July 2011 at 8:44am
Not sure what you mean. Sorry.
Do you want the images to link to external Sites?
Do you have an example published somewhere to help?
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