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GraphQL for ProcessWire

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So I made a mistake by not taking into account the ProcessWire's module naming convention. I totally forgot the fact that if module name starts with Fieldtype it becomes a fieldtype and PW will treat it like any other fieldtype. Like it would try to let you add a new field with that fieldtype. Which we do not want for our GraphQL extension modules. I already faced bugs because of this on admin side.

So naming rule for GraphQL extension modules will be changed from suffixing the name with GraphQL to prefixing the name with GraphQL. So it is GraphQLFieldtypeMapMarker instead of FieldtypeMapMarkerGraphQL. Other than that, everything is the same as before. I'll also update the previous post to reflect this change. Sorry if this causes inconvenience to anyone.

The updated version of ProcessGraphQL that works with new rules is available for use in latest release.

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Wow o_O @dadish I am humbled by your excellent work here. I stumbled on this thread researching PWAs and then was transfixed for the full 37 minutes of your excellent video intro. Thank you very much indeed for all of this, I am yet again thankful for the ProcessWire community's generous and excellent work.

I've had Vue.js noted down as "something I want to use", along with using ProcessWire as/via an API, and most recently, PWAs. I am hoping, if I've not misunderstood, now I may be able to use all these together for a project.

Brilliant! \o/

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I'm very happy you like it @alan. You definitely can use this for any single page application. That's exactly why I built this module for. Please don't hesitate to share the issues that might come up when using this module. I would love hear some feedback and maybe fix bugs if there are any.

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5 hours ago, dadish said:

I'm very happy you like it @alan. You definitely can use this for any single page application. That's exactly why I built this module for. Please don't hesitate to share the issues that might come up when using this module. I would love hear some feedback and maybe fix bugs if there are any.

THANK you @dadish ^_^ — this; SPA + PW as an API + GraphQL for PW, for me is a milestone exciting proposition. I hope I make it the biggest thing to happen to my PW world since I read the word "ProcessWire" on the bottom generous Marty Walker's web site and first visited processwire.com.

First steps for me are reading up on PWAs and finally trying to finish a Wes Bos course on ES6, then I'm off to add in PW as an API & GraphQL. Exciting!

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First of all, I love the module thus far. Unfortunately (for me), When I go to Setup->GraphQL, it pops up with "Loading...", but never actually loads anything . I am currently using php 5.6.30. Any idea what might be causing this? I dont currently have any errors in my console either. 

Screen Shot 2018-03-28 at 3.48.57 PM.png

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27 minutes ago, louisstephens said:

First of all, I love the module thus far. Unfortunately (for me), When I go to Setup->GraphQL, it pops up with "Loading...", but never actually loads anything . I am currently using php 5.6.30. Any idea what might be causing this? I dont currently have any errors in my console either. 

Screen Shot 2018-03-28 at 3.48.57 PM.png

This one is weird. I just installed the module on Classic profile and Skyscrapers profile with latest ProccessWire. Works fine for me.

The "Loading..." is a placeholder till JavaScript kicks in. So this means the GraphiQL js assets are not loading or firing. Could you please try to see if GraphiQL works out of ProcessWire admin. You can either do that manually, using API that exposes GraphiQL in your template file. Or use GraphQL Pages generator. It's in the modules setting page. Looks like this.
5abbfa69e4934_ScreenShot2018-03-29at2_23_50AM.thumb.png.b59965ccf4237c8e0634d51515e46a63.png

Just press it and go to `/graphiql/` on your website and show us what you got there.

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Thanks @dadish! I did as you suggested and still got "Loading...". However, I went through and looked at modules (pretty clean install with not many modules) and disabled TraceyDebugger and now it seems to be working perfectly. I should have done this prior, so my apologies.

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@dadish I guess I have one question in regards to actually obtain an output in templates (sorry I am really new to ajax in general). I currently have

$result = $modules->get('ProcessGraphQL')->executeGraphQL($query, $variables);

in my header of a file, but need to have an "operation" included. I was testing it out with just trying to get the title and body of the current page. I geuss I am a little unsure of how to get started with this.

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Not really sure if this is the best place to post this (or if it belongs in the thread for the module itself, but if it needs to be moved please do so. I successfully got graphql set up and love how easy it makes it to query etc. 

In my endpoint, I have:

echo $modules->get('ProcessGraphQL')->executeGraphQL();

And on another page, I was testing with:

$.ajax({
		type: "POST",
		url: 'localhost/pw/graphql/',          
		data: "{ modals(s: \"title=Test-Page\") { list { id title body } } }",      
		
		success: function(data) {
			console.log(data);
		} 
	});

However, I seem to be getting an error message returned with: "Must provide an operation.". I do apologize if I have just missed something basic (very new to ajax and how it all functions), but is there something missing from my initial request?

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I get the same "loading" screen.

My browser console shows 

Failed to load resource: the server responded with a status of 404 ()

It looks for a file that doesn't exist: site/templates/admin/admin.js

edit: OK, I also disabled Tracy, and everything works fine.

 

Edited by dragan

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On 4/5/2018 at 7:47 PM, louisstephens said:

Not really sure if this is the best place to post this (or if it belongs in the thread for the module itself, but if it needs to be moved please do so. I successfully got graphql set up and love how easy it makes it to query etc. 

In my endpoint, I have:


echo $modules->get('ProcessGraphQL')->executeGraphQL();

And on another page, I was testing with:


$.ajax({
		type: "POST",
		url: 'localhost/pw/graphql/',          
		data: "{ modals(s: \"title=Test-Page\") { list { id title body } } }",      
		
		success: function(data) {
			console.log(data);
		} 
	});

However, I seem to be getting an error message returned with: "Must provide an operation.". I do apologize if I have just missed something basic (very new to ajax and how it all functions), but is there something missing from my initial request?

@louisstephens Your query should be assigned to query variable. Try to change above code like this

$.ajax({
  type: "POST",
  url: 'localhost/pw/graphql/',          
  data: {
    query: "{ modals(s: \"title=Test-Page\") { list { id title body } } }" // <-- change here
  },  
  success: function(data) {
    console.log(data);
  } 
});

 

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On 4/2/2018 at 10:09 PM, chumneypwire said:

@dadish I guess I have one question in regards to actually obtain an output in templates (sorry I am really new to ajax in general). I currently have


$result = $modules->get('ProcessGraphQL')->executeGraphQL($query, $variables);

in my header of a file, but need to have an "operation" included. I was testing it out with just trying to get the title and body of the current page. I geuss I am a little unsure of how to get started with this.

You shouldn't use it to obtain output in your template file. ProcessWire already comes with the best API to access your content. The purpose of the GraphQL module is to let you access content via AJAX, using JavaScript from client side.

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@dadish

While installing the module I get 

require_once(): Failed opening required ' ... modules/ProcessGraphQL/vendor/autoload.php'

There is no 'vendor' folder on the master branch, but it exists on dev branch. Am I missing something? 

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Thank @dadish for this great module. I liked this post long time ago. I just have a chance to get my hand dirty on it. It turns Processwire to a powerful headless CMS with no pain! I am going to use this in my next project with Vue.js or Nuxt.js. 😋

One noob question. Could this module query and mutate session data? I have modules that read/write user, including the unsigned guests, session data. I have no idea how to make it happen using only a GraphQL end point.

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8 hours ago, Zeka said:

@dadish

While installing the module I get 


require_once(): Failed opening required ' ... modules/ProcessGraphQL/vendor/autoload.php'

There is no 'vendor' folder on the master branch, but it exists on dev branch. Am I missing something? 

Hi @Zeka. You should not install the main repository of the module. The main repository of the module is intended only for development of the module. You can install the module in two ways:

  • By module classname. Go to Modules -> Site -> Add New in your PW admin and write `ProcessGraphQL` in Module Class Name field and press Download and Install button.
  • By a zip file. You need to download the module for installation from the releases page of the module. There you can download a .zip file and place it's contents to the site/modules/ directory of the module.
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21 hours ago, Karl_T said:

Thank @dadish for this great module. I liked this post long time ago. I just have a chance to get my hand dirty on it. It turns Processwire to a powerful headless CMS with no pain! I am going to use this in my next project with Vue.js or Nuxt.js. 😋

One noob question. Could this module query and mutate session data? I have modules that read/write user, including the unsigned guests, session data. I have no idea how to make it happen using only a GraphQL end point.

Hi @Karl_T.

The module has no ability to modify the session data. It only can modify PW pages. AFAIK session data is not stored as pages.

What you can do is add a custom GraphQL mutation field for modifying your session. But that would require you to learn GraphQL and the PHP library that we use. Here is how it might look like

<?php namespace ProcessWire;

use Youshido\GraphQL\Type\Scalar\BooleanType;
use Youshido\GraphQL\Type\Scalar\StringType;
use Youshido\GraphQL\Type\Scalar\IntType;
use Youshido\GraphQL\Execution\ResolveInfo;

$processGraphQL = $modules->get('ProcessGraphQL');

wire()->addHookAfter('ProcessGraphQL::getMutation', function ($event) {
    $mutation = $event->return;
    $mutation->addField('modifySessionData', [
        'type' => new BooleanType(),
        'args' => [
          'foo' => new StringType(),
          'bar' => new IntType(),
        ],
        'resolve' => function ($value, array $args, ResolveInfo $info) {
          $success = false;
		  // modify session data here...
          if ($something) {
            $success = true;
          }
          return $success;
        }
    ]);
});

echo $processGraphQL->executeGraphQL();

And then the query for this could look like this

mutation {
  modifySessionData("foo": "boblibob", "bar": 12234)
}

Haven't tried it. So there might be something I'm missing. But I hope this gives you the idea of how you can achieve what you want.

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Slightly OT but worth a read:

Open Source GraphQL Engine Launched

https://www.i-programmer.info/news/197-data-mining/11962-graphql-engine-launched.html

quotes:

"The GraphQL community can harness our lightweight GraphQL-as-a-Service engine and turbocharge any of their new or existing Postgres applications."
"While this release focuses on Postgres, the plan is to add support for other databases in the future."

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Love this module, but I'm concerned about the speed. In my tests, a native template returning the same records and data as the GraphQL endpoint:

Returning 20 pages and some details about  page references:

Native Template: 0.4s
GraphQL Endpoint: 3.2s

Is this performance something that could still be improved? 

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How do you get the name of Pages from a Page Reference field? I have one called 'colors' and it only lets me get the following total, limit, start - no means to get colors -> name or title?


 

{
  product_single (s: "parent=X") {
    list {
      title
      product_code
			colors {
			  getTotal
			  getLimit
			  getStart
			} 
    }
  }
}

 

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On 9/17/2018 at 8:37 PM, patricktsg said:

How do you get the name of Pages from a Page Reference field? I have one called 'colors' and it only lets me get the following total, limit, start - no means to get colors -> name or title

It should be like this

{
  product_single (s: "parent=X") {
    list {
      title
      product_code
        colors {
          getTotal
          getLimit
          getStart
          list { // list of colors
            name // name for each color
          }
        }
      }
    }
  }
}

 

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On 8/29/2018 at 3:11 AM, bcartier said:

Love this module, but I'm concerned about the speed. In my tests, a native template returning the same records and data as the GraphQL endpoint:

Returning 20 pages and some details about  page references:

Native Template: 0.4s
GraphQL Endpoint: 3.2s

Is this performance something that could still be improved? 

Unfortunately I haven't had much time in optimization for this module. I'm very busy so can't promise any timelines when this will happen. The only thing you can do now is to keep your graphql schema as small as possible by unchecking all the unwanted fields and templates in the module config page.

There is supposed to be a way to cache the schema (https://github.com/youshido-php/GraphQL/pull/37) I was planning to look into it. But never had a time for it and thus is not implemented in this module yet.

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22 hours ago, dadish said:

It should be like this


{
  product_single (s: "parent=X") {
    list {
      title
      product_code
        colors {
          getTotal
          getLimit
          getStart
          list { // list of colors
            name // name for each color
          }
        }
      }
    }
  }
}

 

Thanks for getting back to me - tried that code but I just get an empty array for the list

 

{
  "data": {
    "product_single": {
      "list": [
        {
          "title": "Widget",
          "product_code": "12345",
          "colour": {
            "getTotal": 1,
            "getLimit": 0,
            "getStart": 0,
            "list": []
          }
        }
      ]
    }
  }
}

 

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      ---------------------------------------------------------------------------------------------------------------------------------
        when working with PW version 2.6+, please use Pim2, not Pim!
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      PageImage Manipulator, API for version 1 & 2

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      * pixelate

      pixelate($blockSize=3)
      param: $blockSize - (integer) 1 - ??, default is 3 return: pim - (class handle) This apply the well known PixelLook to the memory image. It is stronger with higher values for blockSize.
      -------------------------------------------------------------------

      * emboss

      emboss()
      return: pim - (class handle) This apply the emboss effect to the memory image.
      -------------------------------------------------------------------

      * edgedetect

      edgedetect()
      return: pim - (class handle) This apply the edge-detect effect to the memory image.
      -------------------------------------------------------------------

      * getMemoryImage

      getMemoryImage()
      return: memoryimage - (GD-Resource) If you want apply something that isn't available with that class, you simply can check out the current memory image and apply your image - voodoo - stuff
      -------------------------------------------------------------------

      * setMemoryImage

      setMemoryImage($memoryImage)
      param: $memoryImage - (GD-Resource) return: pim - (class handle) If you are ready with your own image stuff, you can check in the memory image for further use with the class.
      -------------------------------------------------------------------

      * watermarkLogo

      watermarkLogo($pngAlphaImage, $position='center', $padding=2)
      param: $pngAlphaImage - mixed [systemfilepath or PageImageObject] to/from a PNG with transparency param: $position - (string) is one out of: N, E, S, W, C, NE, SE, SW, NW,
      - or: north, east, south, west, center, northeast, southeast, southwest, northwest
      default is 'center' param: $padding - (integer) 0 - 25, default is 5, padding to the borders in percent of the images length! return: pim - (class handle) You can pass a transparent image with its filename or as a PageImage to the method. If the watermark is bigger than the destination-image, it gets shrinked to fit into the targetimage. If it is a small watermark image you can define the position of it:
      NW - N - NE | | | W - C - E | | | SW - S - SE  
      The easiest and best way I have discovered to apply a big transparency watermark to an image is as follows:
      create a square transparent png image of e.g. 2000 x 2000 px, place your mark into the center with enough (percent) of space to the borders. You can see an example here! The $pngAlphaImage get centered and shrinked to fit into the memory image. No hassle with what width and / or height should I use?, how many space for the borders?, etc.
      -------------------------------------------------------------------

      * watermarkLogoTiled

      watermarkLogoTiled($pngAlphaImage)
      param: $pngAlphaImage - mixed [systemfilepath or PageImageObject] to/from a PNG with transparency return: pim - (class handle) Here you have to pass a tile png with transparency (e.g. something between 150-300 px?) to your bigger images. It got repeated all over the memory image starting at the top left corner.
      -------------------------------------------------------------------

      * watermarkText

      watermarkText($text, $size=10, $position='center', $padding=2, $opacity=50, $trueTypeFont=null)
      param: $text - (string) the text that you want to display on the image param: $size - (integer) 1 - 100, unit = points, good value seems to be around 10 to 15 param: $position - (string) is one out of: N, E, S, W, C, NE, SE, SW, NW,
      - or: north, east, south, west, center, northeast, southeast, southwest, northwest
      default is 'center' param: $padding - (integer) 0 - 25, default is 2, padding to the borders in percent of the images length! param: $opacity- (integer) 1 - 100, default is 50 param: $trueTypeFont - (string) systemfilepath to a TrueTypeFont, default is freesansbold.ttf (is GPL & comes with the module) return: pim - (class handle) Here you can display (dynamic) text with transparency over the memory image. You have to define your text, and optionally size, position, padding, opacity for it. And if you don't like the default font, freesansbold, you have to point to a TrueTypeFont-File of your choice.
      Please have a look to example output: http://processwire.com/talk/topic/4264-release-page-image-manipulator/page-2#entry41989
      -------------------------------------------------------------------





      PageImage Manipulator - Example Output


    • By d'Hinnisdaël
      Format Datetime fields as Carbon instances.
      You can find the latest release and the complete readme on Github.
      Installation
      composer require daun/datetime-carbon-format Usage
      All Datetime fields will now be formatted as Carbon instances instead of strings. Some examples:
      // $page->date is a Datetime field // Output format: j/n/Y echo $page->date; // 20/10/2020 echo $page->date->add('7 days'); // 27/10/2020 echo $page->date->format('l, F j'); // Monday, October 20 echo $page->date->year; // 2020 echo $page->date->diffForHumans(); // 28 minutes ago Frontend only
      The ProcessWire admin seems to expect datetime fields to be strings. This module will only return Carbon instances on frontend page views.
      Date output format
      When casting a Carbon instance to a string (usually when outputting the field in a template), the field's date output format will be respected.
      Links
      GitHub • Readme • Carbon docs
       
       
      PS. I remember reading about a Carbon module in a recent newsletter, but couldn't find it anywhere. Was that you, @bernhard?
    • By MoritzLost
      TrelloWire
      This is a module that allows you to automatically create Trello cards for ProcessWire pages and update them when the pages are updated. This allows you to setup connected workflows. Card properties and change handling behaviour can be customized through the extensive module configuration. Every action the module performs is hookable, so you can modify when and how cards are created as much as you need to. The module also contains an API-component that makes it easy to make requests to the Trello API and build your own connected ProcessWire-Trello workflows.
      Warning: This module requires ProcessWire 3.0.167 which is above the current stable master release at the moment.
      Features
      All the things the module can do for you without any custom code: Create a new card on Trello whenever a page is added or published (you can select applicable templates). Configure the target board, target list, name and description for new cards. Add default labels and checklists to the card. Update the card whenever the page is updated (optional). When the status of the card changes (published / unpublished, hidden / unhidden, trashed / restored or deleted), move the card to a different list or archive or delete it (configurable). You can extend this through hooks in many ways: Modifiy when and how cards are created. Modify the card properties (Target board & list, title, description, et c.) before they are sent to Trello. Create your own workflows by utilizing an API helper class with many convenient utility methods to access the Trello API directly. Feedback & Future Plans
      Let me know what you think! In particular:
      If you find any bugs report them here or on Github, I'll try to fix them. This module was born out of a use-case for a client project where we manage new form submissions through Trello. I'm not sure how many use-cases there are for this module. If you do use it, tell me about it! The Trello API is pretty extensive, I'll try to add some more helper methods to the TrelloWireApi class (let me know if you need anything in particular). I'll think about how the module can support different workflows that include Twig – talk to me if you have a use-case! Next steps could be a dashboard to manage pages that are connected to a Trello card, or a new section in the settings tab to manage the Trello connection. But it depends on whether there is any interest in this 🙂 Links
      Repository on Github Complete module documentation (getting started, configuration & API documentation) TrelloWire in the modules directory Module configuration

    • By David Karich
      ProcessWire InputfieldRepeaterMatrixDuplicate
      Thanks to the great ProModule "RepeaterMatrix" I have the possibility to create complex repeater items. With it I have created a quite powerful page builder. Many different content modules, with many more possible design options. The RepeaterMatrix module supports the cloning of items, but only within the same page. Now I often have the case that very design-intensive pages and items are created. If you want to use a content module on a different page (e.g. in the same design), you have to rebuild each item manually every time.
      This module extends the commercial ProModule "RepeaterMatrix" by the function to duplicate repeater items from one page to another page. The condition is that the target field is the same matrix field from which the item is duplicated. This module is currently understood as proof of concept. There are a few limitations that need to be considered. The intention of the module is that this functionality is integrated into the core of RepeaterMatrix and does not require an extra module.
      Check out the screencast
      What the module can do
      Duplicate multible repeater items from one page to another No matter how complex the item is Full support for file and image fields Multilingual support Support of Min and Max settings Live synchronization of clipboard between multiple browser tabs. Copy an item and simply switch the browser tab to the target page and you will immediately see the past button Support of multiple RepeaterMatrix fields on one page Configurable which roles and fields are excluded Configurable dialogs for copy and paste Duplicated items are automatically pasted to the end of the target field and set to hidden status so that changes are not directly published Automatic clipboard update when other items are picked Automatically removes old clipboard data if it is not pasted within 6 hours Delete clipboard itself by clicking the selected item again Benefit: unbelievably fast workflow and content replication What the module can't do
      Before an item can be duplicated in its current version, the source page must be saved. This means that if you make changes to an item and copy this, the old saved state will be duplicated Dynamic loading is currently not possible. Means no AJAX. When pasting, the target page is saved completely No support for nested repeater items. Currently only first level items can be duplicated. Means a repeater field in a repeater field cannot be duplicated. Workaround: simply duplicate the parent item Dynamic reloading and adding of repeater items cannot be registered. Several interfaces and events from the core are missing. The initialization occurs only once after the page load event Attention, please note!
      Nested repeaters cannot be supported technically. Therefore a check is made to prevent this. However, a nested repeater can only be detected if the field name ends for example with "_repeater1234". For example, if your MatrixRepeater field is named like this: "content_repeater" or "content_repeater123", this field is identified as nested and the module does not load. In version 2.0.1 the identification has been changed so that a field ending with the name repeater is only detected as nested if at least a two-digit number sequence follows. But to avoid this problem completely, make sure that your repeater matrix field does NOT end with the name "repeater".
      Changelog
       
      2.0.1
      Bug fix: Thanks to @ngrmm I could discover a bug which causes that the module cannot be loaded if the MatrixRepeater field ends with the name "repeater". The code was adjusted and information about the problem was provided 2.0.0
      Feature: Copy multiple items at once! The fundament for copying multiple items was created by @Autofahrn - THX! Feature: Optionally you can disable the copy and/or paste dialog Bug fix: A fix suggestion when additional and normal repeater fields are present was contributed by @joshua - THX! 1.0.4
      Bug fix: Various bug fixes and improvements in live synchronization Bug fix: Items are no longer inserted when the normal save button is clicked. Only when the past button is explicitly clicked Feature: Support of multiple repeater fields in one page Feature: Support of repeater Min/Max settings Feature: Configurable roles and fields Enhancement: Improved clipboard management Enhancement: Documentation improvement Enhancement: Corrected few typos #1 1.0.3
      Feature: Live synchronization Enhancement: Load the module only in the backend Enhancement: Documentation improvement 1.0.2
      Bug fix: Various bug fixes and improvements in JS functions Enhancement: Documentation improvement Enhancement: Corrected few typos 1.0.1
      Bug fix: Various bug fixes and improvements in the duplication process 1.0.0
      Initial release Support this module
      If this module is useful for you, I am very thankful for your small donation: Donate 5,- Euro (via PayPal – or an amount of your choice. Thank you!)
      Download this module (Version 2.0.1)
      > Github: https://github.com/FlipZoomMedia/InputfieldRepeaterMatrixDuplicate
      > PW module directory: https://modules.processwire.com/modules/inputfield-repeater-matrix-duplicate/
      > Old stable version (1.0.4): https://github.com/FlipZoomMedia/InputfieldRepeaterMatrixDuplicate/releases/tag/1.0.4
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