Jump to content
GradDev

How to delete a single file?

Recommended Posts

I have a file field named "resume". I want to delete the file saved in it using the API.

The field is limited to only 1 upload of file and the return type is set to "Automatic" which means it will return a single object if a file is available.

Now there are two options that I have tried- delete() and deleteAll().

$page_to_change = $pages->get("name=xyz");

$page_to_change->resume->deleteAll();

//OR
//$page_to_change->resume->delete($page_to_change->resume);

$page_to_change->of(false);
$page_to_change->save();

Both of these give an error like-

Error: Exception: Method Pagefile::deleteAll does not exist or is not callable in this context(...)

I understand that this error is because these two functions work on a wirearray rather than on a file object.

But how do I delete a single file?

Share this post


Link to post
Share on other sites

Your code as well as eelkenet’s should work if you set output formatting to false at the top instead of at the bottom. AFAIK, without output formatting, File fields always return a WireArray, or rather, a Pagefiles array, which inherits from WireArray.

In general the reason you disable output formatting is that you can work with the “raw” data before saving. Changing the formatted data and then only disabling output formatting before the save() should be pointless and/or introduce errors. For example, if you have a field with Markdown formatting and you modify its contents without disabling output formatting, you’re modifying and saving the rendered HTML, destroying your original Markdown markup.

  • Like 1
  • Thanks 1

Share this post


Link to post
Share on other sites

@Jan Romero Thanks!

The positioning of output formatting was the issue.

The code just needs to be-

$page_to_change->of(false);

$page_to_change = $pages->get("name=xyz");

$page_to_change->resume->deleteAll();

//OR
//$page_to_change->resume->delete($page_to_change->resume);

$page_to_change->save();

This will make $page_to_change->resume be a Pagefiles array rather than just an object; thus both the deleteAll() and delete($Pagefile) functions work on it now.

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By AndZyk
      Hello,
      I am currently building a intranet which will be hosted on the local network of a company. This intranet has many links to files on their fileserver with the protocol file://.
      So for example the links look like this file://domain.tld/filename.ext
      When I try to insert such a link into a URL field, I get the error, that only the protocol http:// is allowed. When I try to insert such a link into a CKEeditor link, it gets stripped out. Is it possible to insert such links into the FieldType URL and CKEditor.
      I know that I could use a FieldType Text or insert a RewriteRule in the .htaccess file, but I am looking for a more elegant solution. 😉
      Regards, Andreas
    • By neophron
      Hi,
      I was searching in the forum about a method how to remove a file extension, like .jpg, but couldn't find anything.
      There are some php methods out in the wild, but I wanted first to get sure, that Processwire is offering a solution.
      The background is, that a clients website has a lot of images, packed in different galleries. All image files contain the name, dimensions and other stuff about the image (painting). I want to echo the image name in the image tag.
       
      thanks 
    • By gregory
      Hi everyone.
      I can't see the PDF uploaded via a field called "pdf".
      I get a url like this: http://localhost:8888/mywebsite/site/assets/files/1129/test.pdf%EF%BB%BF%EF%BB%BF
      Could anyone help me? Thank you.
      <?php foreach($page->case_studies as $item) { if($item->type == 'contenuto') { echo " <a class='btn btn-primary btn-sm' target='blank' href='{$item->pdf->first()->url}' role='button'>Download</a> "; } } ?>  
    • By Robin S
      File Info
      A textformatter module for ProcessWire. The module can add information to local Pagefile links in two ways:
      As extra markup before, within or after the link As data attributes on the link (handy if you want to use a Javascript tooltip library, for instance) Screenshots
      Module config

      Example of output

      Installation
      Install the File Info module.
      Add the textformatter to one or more CKEditor fields.
      Configuration
      Add markup action (and general)
      Select "Add markup to links" Select the Pagefile attributes that will be retrieved. The attribute "filesizeStrCustom" is similar to the core "filesizeStr" attribute but allows for setting a custom number of decimal places. If you select the "modified" or "created" attributes then you can define a date format for the value. Enter a class string to add to the links if needed. Define the markup that will be added to the links. Surround Pagefile attribute names in {brackets}. Attributes must be selected in the "Pagefile attributes" section in order to be available in the added markup. If you want include a space character at the start or end of the markup then you'll need >= PW 3.0.128. Select where the markup should be added: prepended or appended within the link, before the link, or after the link. Add data attributes action
      Select "Add data attributes to links" Select the Pagefile attributes that will be retrieved. These attributes will be added to the file links as data attributes. Attributes with camelcase names will be converted to data attribute names that are all lowercase, i.e. filesizeStrCustom becomes data-filesizestrcustom. Hook
      If you want to customise or add to the attributes that are retrieved from the Pagefile you can hook TextformatterFileInfo::getFileAttributes(). For example:
      $wire->addHookAfter('TextformatterFileInfo::getFileAttributes', function(HookEvent $event) { $pagefile = $event->arguments(0); $page = $event->arguments(1); $field = $event->arguments(2); $attributes = $event->return; // Add a new attribute $attributes['sizeNote'] = $pagefile->filesize > 10000000 ? 'This file is pretty big' : 'This file is not so big'; $event->return = $attributes; });  
      https://github.com/Toutouwai/TextformatterFileInfo
      https://modules.processwire.com/modules/textformatter-file-info/
    • By AndZyk
      Hello,
      I am not that experienced with hooks and was hoping if somebody could me with this task:
      I have a InputfieldFile in wich a single generated file will be added after checking a checkbox in the back-end and saving the page. This happens in the saveReady-hook of a page with a specific template inside a ready.php:
      <?php $this->addHookAfter("Pages::saveReady", function($event) { $page = $event->arguments(0); if ($page->template->name === "example") { if ($page->checkboxField) { $page->fileField->add($generatedFile); } } }); Now if a new file should be generated and there is already a file in this InputfieldFile, I would like to remove the previous file and replace it with the new one:
      <?php if (count($page->fileField)) { $page->fileField->removeAll(); } That works well so far. My problem is, that I want to add the new file with the same name filename.pdf. But when I remove the previous file and add the new file inside the same saveReady-hook, the previous file still exists until the page is saved and the name of the new file will be added a filename-1.pdf, because ProcessWire makes the filename unique when a file with the same name exists.
      My question is: Is there a hook or way to remove the previous file before the new file will be added to keep the same filename?
      I tried to unlink the previous file, but then the InputfieldFile doesn't always gets updated correctly and has one empty file and the new file. 😉
      Regards, Andreas
×
×
  • Create New...