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GraphQL for ProcessWire

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NOTE: This thread originally started in the Pub section of the forum. Since we moved it into the Plugin/Modules section I edited this post to meet the guidelines but also left the original content so that the replies can make sense.  

ProcessGraphQL

ProcessGraphQL seamlessly integrates to your ProcessWire web app and allows you to serve the GraphQL api of your existing content. You don't need to apply changes to your content or it's structure. Just choose what you want to serve via GraphQL and your API is ready.

Warning: The module supports PHP version >= 5.5 and ProcessWire version >= 3.

Links:

Please refer to the Readme to learn more about how to use the module.

 

Original post starts here...

Hi Everyone! I became very interested in this GraphQL thing lately and decided to learn a bit about it. And what is the better way of learning a new thing than making a ProcessWire module out of it! :)

For those who are wondering what GraphQL is, in short, it is an alternative to REST. I couldn't find the thread but I remember that Ryan was not very happy with the REST and did not see much value in it. He offered his own AJAX API instead, but it doesn't seem to be supported much by him, and was never published to official modules directory. While ProcessWire's API is already amazing and allows you to quickly serve your content in any format with less than ten lines of code, I think it might be convenient to install a module and have JSON access to all of your content instantly. Especially this could be useful for developers that use ProcessWire as a framework instead of CMS.

GraphQL is much more flexible than REST. In fact you can build queries in GraphQL with the same patterns you do with ProcessWire API.

Ok, Ok. Enough talk. Here is what the module does after just installing it into skyscrapers profile.

ProcessGraphQL-Query.gif

It supports filtering via ProcessWire selectors and complex fields like FieldtypeImage or FieldtypePage. See more demo here

The module is ready to be used, but there are lots of things could be added to it. Like supporting any type of fields via third party modules, authentication, permissions on field level, optimization and so on. I would love to continue to develop it further if I would only know that there is an interest in it. It would be great to hear some feedback from you. I did not open a thread in modules section of the forum because I wanted to be sure there is interest  in it first.

You can install and learn about it more from it's repository. It should work with PHP >=5.5 and ProcessWire 3.x.x. The support for 2.x.x version is not planned yet.

Please open an issue if you find bugs or you want some features added in issue tracker. Or you can share your experience with the module here in this thread.

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1 hour ago, Nurguly Ashyrov said:

I would love to continue to develop it further if I would only know that there is an interest in it.

I don't know much about GraphQL but I want to learn more, and your module looks like it will make it easy to get started with in PW. So definitely interested. :)

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First of all, I think this looks great. I'm not entirely sure if I'll ever need something like this personally, but a module like this would no doubt be useful for some cases :)

To my best understanding the main point Ryan was making about REST was that since it's easy to add new views (or whatever you choose to call them) for a ProcessWire site, a separate module doesn't make as much sense as it does for a system that doesn't provide similar flexibility. I've got some, albeit very limited, experience with the REST API in WP, and in their case it definitely makes a lot of sense.

There's also the question of security: there may be cases where something is technically speaking public, but not accessible via your existing web site, and a "generic" REST API could result in some surprises there.. and, of course, if it's not read-only, that's a whole another thing to worry about.

All that being said, I'm looking forward to seeing where this module goes. An easy-to-use plug-n-play GraphQL API sounds like a great thing to have in one's toolbox :)

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On 1/28/2017 at 6:10 PM, teppo said:

There's also the question of security: there may be cases where something is technically speaking public, but not accessible via your existing web site, and a "generic" REST API could result in some surprises there.. and, of course, if it's not read-only, that's a whole another thing to worry about.

By the way, in terms of security, this module follows the permission settings in ProcessWire. All it does is collects the templates that are viewable by the client via

$user->hasPermission('page-view', $template);

and for every request it makes sure to returns only those pages that have one of those templates. So, as long as user does not have permission to view the page, she won't be able to fetch it. I tried to make module reflect your existing settings as much as possible. It basically delegates everything possible to ProcessWire itself. 

 

On 1/28/2017 at 6:54 PM, LostKobrakai said:

I always though graphql would only be for qraph databases, but really this looks damn rad.

That is so true. I personally thought GraphQL was new SQL.

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1 hour ago, Nurguly Ashyrov said:

All it does is collects the templates that are viewable by the client

There are also field access settings, just to be sure you're aware of them.

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36 minutes ago, LostKobrakai said:

There are also field access settings, just to be sure you're aware of them.

Yes, I am aware of field permissions, thank you for reminding. I have not added support for them yet. Though it is definitely in my todo list for this module.

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Looks super cool!

Does it add some public endpoint to fetch data or how does it work outside the "console" example shown on the videos?

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1 hour ago, apeisa said:

Looks super cool!

Does it add some public endpoint to fetch data or how does it work outside the "console" example shown on the videos?

Of course. In one of your templates (edit: In one of your template files) you simply do

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

and that's it. It will handle all GraphQL requests. There is more info in the repository.

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Thank you very much for this module, @Nurguly Ashyrov!

I missed this graphql thing completely, though was messing around json api a bit. Had some great time reading about it. Seems like ProcessWire fits graphql like a glove. Your module should answer a lot of recent questions about integrating PW with vue.js and alike.

Dries Buytaert, the Drupal "godfather", has a nice article in his blog about the necessity for a contemporary CMS to have support for web-services built in. And his choice seems to be graphql and json api. I am sure that improving and promoting PW as a "headless CMS" kind of thing is something that could bring a lot of frontend developers to use PW. This module is the perfect start.

As I understand, mutations are a way to not only read, but write data? If so, that is certainly worth implementing, so a complete SPA could be possible with this graphql module alone.

 

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16 hours ago, Ivan Gretsky said:

Seems like ProcessWire fits graphql like a glove.

You couldn't be more precise! GraphQL and ProcessWire fit each other very well. All this module does is just maps the ProcessWire's fieldtypes with GraphQL type system. It literally tells GraphQL that FieldtypeText is a StringType, FieldtypeDate is DateType and so on. And for getting the data, on average, it is less than a single line of code :). Since you can access value of a page field like $pages->$fieldName all primitive fields inherit a method for accessing data from one place. I sure having lots of fun writing this module.

16 hours ago, Ivan Gretsky said:

Dries Buytaert, the Drupal "godfather", has a nice article in his blog about the necessity for a contemporary CMS to have support for web-services built in. And his choice seems to be graphql and json api. I am sure that improving and promoting PW as a "headless CMS" kind of thing is something that could bring a lot of frontend developers to use PW. This module is the perfect start.

I agree with Drupal "godfather" totally. The need for quick bootstrapping of an api service with flexible content structure is in very high demand. I had a hard time landing a job as a ProcessWire developer. So I target myself as a full-stack SPA developer in React.js/Node.js. I tried many of open source REST frameworks in Node.js that would help me get started with a project quickly. But non of them offered enough flexibility for my style of programming (I guess ProcessWire spoiled me :)). At the time I figured out the best way to build REST api in Node.js I found out that REST is not flexible either. When an app starts evolving REST gets very messy. The Github built three versions of their REST api and still are not happy with it and now decided to release a GraphQL api which probably will not introduce breaking changes in the future, because GraphQL is designed that way.

I think if made correctly, this module could bring a great value to many ProcessWire users.

16 hours ago, Ivan Gretsky said:

As I understand, mutations are a way to not only read, but write data? If so, that is certainly worth implementing, so a complete SPA could be possible with this graphql module alone.

 That's right. That is the main goal of this module. I will eventually implement all the features that needed to build a complete SPA with this module. I just try to move carefully and a usage feedback from community would help a lot. Just installing it and making couple queries to confirm that it works as expected would be great.

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On 28/01/2017 at 4:11 PM, Nurguly Ashyrov said:

By the way, in terms of security, this module mimics the permission settings in ProcessWire. All it does is collects the templates that are viewable by the client via [...] and for every request it makes sure to returns only those pages that have one of those templates. So, as long as user does not have permission to view the page, she won't be able to fetch it. I tried to make module reflect your existing settings as much as possible. It basically delegates everything possible to ProcessWire itself.

This sounds good, and that's basically everything that a "generic", publicly accessible API can do. I've got no complaints here :)

What I've found out while playing with the WP REST API a while ago is that even though permissions are sensible, it may end up showing more than the public site. Part of it is about things like (not just page but) field level permissions, and part is about pages that exist and are publicly viewable for technical reason, but are not *intended* for public consumption, if you get what I mean.

Surely it would be best to always use native permission rules to limit the visibility, but sometimes a site may have content that is viewable only if you know the direct URL, and a public API like this may make it "more public" than the developer intended. Another thing is that there may be a code-level permission check in place, and a module like this would have hard time figuring that out.

That being said, have you already implemented or are you considering implementing custom selector support for such limits? I.e. allow the developer to manually define a selector that returned pages must match, or alternatively should never match? I think that could make a lot of sense from a security point of view, particularly for public API endpoints, where it might actually work best as a per-endpoint setting :)

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41 minutes ago, teppo said:

...sometimes a site may have content that is viewable only if you know the direct URL, and a public API like this may make it "more public" than the developer intended.

Are you talking about pages with the status hidden? If thats the case, it should behave as expected. At this point this module accesses content only via $pages->find(). As long as $pages->find() does not return pages that are not intended for public this module should not make it accessible. I do not use $pages->get()as it bypasses some permission rules.

41 minutes ago, teppo said:

Another thing is that there may be a code-level permission check in place, and a module like this would have hard time figuring that out.

As a proper citizen of ProcessWire, one would implement code-level permission check by attaching a hook to User::hasPagePermission, User::hasTemplatePermission or any other equivalent, including field level permissions. For that cases this module wouldn't have to figure out anything, it will happen naturally. But for those cases where access to resources are checked outside of ProcessWire's permissions context, this module might not be a good fit for building service api.

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1 hour ago, teppo said:

That being said, have you already implemented or are you considering implementing custom selector support for such limits? I.e. allow the developer to manually define a selector that returned pages must match, or alternatively should never match? I think that could make a lot of sense from a security point of view, particularly for public API endpoints, where it might actually work best as a per-endpoint setting :)

I have not thought about this kind of security layer. Though it sounds reasonable. I will keep in mind this option. For now I plan to add an option to limit the templates that are meant to be accessible via public api by explicitly selecting them.

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3 hours ago, Nurguly Ashyrov said:

Are you talking about pages with the status hidden? If thats the case, it should behave as expected. At this point this module accesses content only via $pages->find(). As long as $pages->find() does not return pages that are not intended for public this module should not make it accessible. I do not use $pages->get()as it bypasses some permission rules.

As a proper citizen of ProcessWire, one would implement code-level permission check by attaching a hook to User::hasPagePermission, User::hasTemplatePermission or any other equivalent, including field level permissions. For that cases this module wouldn't have to figure out anything, it will happen naturally. But for those cases where access to resources are checked outside of ProcessWire's permissions context, this module might not be a good fit for building service api.

Generally speaking you're, of course, right -- in most cases one should use built-in visibility settings and permission-related hooks, but it's not unheard of to check permissions in a template file either. Depends a bit on the use case. And yes, you're right that in such cases it may be preferable to avoid installing such a module at all.

Obviously this is mainly a problem with systems that include a enabled-by-default (or always enabled) built-in public API, and less so when enabling/installing the API itself is a conscious choice.

Either way, it's good to understand that exposing your content to the world via a publicly queryable API may uncover some surprises. This is one of the reasons why I find certain value in the idea of crafting the API per current needs and so that it only exposes the minimum viable amount of data :)

Note: don't get me wrong, I'm definitely not against this module. What I've said here is mostly theoretical. I also think that your idea of being able to manually define queryable templates makes a lot of sense. While I'd still suggest enabling a selector instead, you obviously know the use cases (and the implementation) better.

 

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I hear what Teppo is saying, but choosing templates would pretty much nail that concern. Developer has chosen to show those templates through API, so leaves no place for confusion in my opinion. 

I will definitely give this one a good ride. 

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On 1/30/2017 at 7:22 PM, teppo said:

Obviously this is mainly a problem with systems that include a enabled-by-default (or always enabled) built-in public API, and less so when enabling/installing the API itself is a conscious choice.

Either way, it's good to understand that exposing your content to the world via a publicly queryable API may uncover some surprises. This is one of the reasons why I find certain value in the idea of crafting the API per current needs and so that it only exposes the minimum viable amount of data :)

You are completely right. I can't argue that "enabled-by-default" approach can lead to lots of security issues. That's why I am limiting the exposable pages only to selected templates. While the selector option is quite simple to implement I don't want to enable this kind of option because I believe it should not be this module's concern.

The way I see it, if this module stays consistent and retrieves data only through $pages->find() api (or it's equivalent like $page->children(), $page->siblings() etc) that should give the user any type of control with the security. For example what you suggest could be achieved with a single hook. Say this is your template file where you expose your GraphQL api (something like /site/templates/graphql.php).

<?php

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

What you suggest could be achieved like this.

<?php

wire()->addHookAfter('Pages::find', function($event) {
  $event->return = $event->return->filter($mySecuritySelector);
});

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

I would prefer users to approach security this way. This strategy to security gives full control for the user while allowing me to stick to a single rule when concerned about security and makes the code of the module much easier to reason about. I do realize that I could just insert the above code in the module and that's basically an implementation of what you suggest. But I don't want to encourage the user to solve security problems via module settings because no matter how hard I try, I won't be able to make this module dummy proof without limiting it's capabilities.

Another thing I wanted to mention is that I see this module as a GraphQL representation of ProcessWire api. Like @Ivan Gretsky mentioned, if done right, this could allow us to build lot's of useful developer tools on top of this module. Even a mobile app that gives you limited site administration capabilities. But only if module is consistent with how ProcessWire behaves. And that includes the security of course.

On 1/30/2017 at 7:22 PM, teppo said:

Note: don't get me wrong, I'm definitely not against this module. What I've said here is mostly theoretical. I also think that your idea of being able to manually define queryable templates makes a lot of sense. While I'd still suggest enabling a selector instead, you obviously know the use cases (and the implementation) better.

Oh no sir, not at all. I value your opinion very much. That's exactly what I wanted to hear from the community, opinions. I am thankful to you for mentioning this aspect of the module in it's early stage, before I started to implement other features that depend on it, like authentication or others that I might not think of right now.

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Just a thought, since this is what I try to do with my own modules: could you add hookable methods in ProcessGraphQL that allow implementing custom restrictions? These hookables could be no-ops if not hooked and receive all information about the query at the time of calling, enabling users to filter or reject queries before or after they've run.

It's an intriguing module in any case. Thanks for sharing it with us!

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1 hour ago, BitPoet said:

Just a thought, since this is what I try to do with my own modules: could you add hookable methods in ProcessGraphQL that allow implementing custom restrictions? These hookables could be no-ops if not hooked and receive all information about the query at the time of calling, enabling users to filter or reject queries before or after they've run.

That's a very good idea! Will do that. Thank you for the tip.

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Here is another idea. What about the ability to make a number of API endpoints with different allowed templates and restrictions based on single instance of a module. By passing an argument to executeGraphQL() or something like that. With the ability do distinguish them in hooks.

A way to have a public and less public API on the same site. I guess than some authentication questions could be solved on a template level.

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19 hours ago, Ivan Gretsky said:

Here is another idea. What about the ability to make a number of API endpoints with different allowed templates and restrictions based on single instance of a module. By passing an argument to executeGraphQL() or something like that. With the ability do distinguish them in hooks.

But all you said is already can be achieved. :) No need to do anything on my side. Maybe add documentation on module's properties though. You can modify the module settings via api by overwriting them. So here how you can set different templates for different endpoints.

// /site/templates/graphql-endpoint1.php
<?php
$ProcessGraphQL = $modules->get('ProcessGraphQL');
$ProcessGraphQL->legalTemplates = array('skyscraper', 'city');
echo $ProcessGraphQL->executeGraphQL();
?>

// /site/templates/graphql-endpoint2.php
<?php
$ProcessGraphQL = $modules->get('ProcessGraphQL');
$ProcessGraphQL->legalTemplates = array('architect', 'basic-page');
echo $ProcessGraphQL->executeGraphQL();

// /site/templates/graphql-endpoint3.php
$ProcessGraphQL = $modules->get('ProcessGraphQL');
echo $ProcessGraphQL->executeGraphQL(); // here it will use default settings that you set via admin interface

 

For the ability to distinguish the versions of your GraphQL endpoints. That's also doable without much effort. We are talking about ProcessWire after all. Here how it might look like.

$config->GraphqlEndpointID = 123;
echo $modules->get('ProcessGraphQL')->executeGraphQL();
$config->GraphqlEndpointID = false;

And same thing in other template files with different endpoint id. Now anywhere you attach a hook, you can know which endpoint of your api is being executed, or if it is being executed at all. You just need to add a conditional block in your hook. Something like

if (wire('config')->GraphqlEndpointID === 123) {
  // some bussiness here
}

 

I am a bit confused though. One of selling points of GraphQL is that there is only one url that you need to deal with. It's just `example.com/graphql/` and nothing more. No more this

  GET example.com/graphql/skyscrapers/
  GET example.com/graphql/skyscrapers/{id}
 POST example.com/graphql/skyscrapers/
  PUT example.com/graphql/skyscrapers/{id}
PATCH example.com/graphql/skyscrapers/{id}
  GET example.com/graphql/architects/
 ...

It's only one endpoint for everything you need. That's actually is the way it is encouraged to build GraphQL api. Also it is only one HTTP verb you need to use, which is POST. You can stop thinking about dealing with PUT, PATCH, HEAD, OPTION and more. You only need this with GraphQL.

POST example.com/your-endpoint-url/

And that's it. One HTTP verb and one url to rule them all :)

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I was thinking of a few endpoints to handle authentication with the template permissions. One for the public, another for the registered users with the ability to make changes via mutations when they'll be implemented. There are other ways to handle authentication of course. But then we will have to implement some restrictions via module itself. But maybe I am not seeing something obvious here.

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2 hours ago, Nurguly Ashyrov said:

I am a bit confused though. One of selling points of GraphQL is that there is only one url that you need to deal with. It's just `example.com/graphql/` and nothing more. No more this [...]

Thats true - yet, when I was reading this thread and thinking about that restriction and security stuff and about the differences of graphQL and REST - 
I thought that it might actually be handy to simply combine the two.
Using REST for simple API calls - simple forms, logins... and so on - and using graphQL for sophisticated stuff for your interactive JS app.

You might want to do this to differ between the general public and logged in users.

/graphQL/public/ and /graphQL/private/

Since by defining legal templates in one endpoint those will be legal for anyone. But you want to restrain the public data for the guest user as much as possible - but at the same time allow more available data for logged in users, even granularly define legal data for different user roles.

You could do it just like that I think?
/public/ will only allow very few legal things in general.
/private/ will handle anything else automatically via ProcessWires granular permission system for logged in users.

Or maybe there is a way to handle that all in one endpoint? Idk ...  ... oh. of of course you can ask in your single endpoint for the user role ...... .... ... :rolleyes: as simple as that.

 

Maybe it would also be handy to have an option to define "legalFields" in the same way as templates? So you can restrain the amount of data which is instantly public a bit more granularly. So you can just hide anything which doesn't need to be public at all.

 

And by the way - good work!
I will definitely learn a couple of things here again ... thanks!

Edited by blynx
having a fancy fancy

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3 hours ago, Ivan Gretsky said:

I was thinking of a few endpoints to handle authentication with the template permissions. One for the public, another for the registered users with the ability to make changes via mutations when they'll be implemented. There are other ways to handle authentication of course. But then we will have to implement some restrictions via module itself. But maybe I am not seeing something obvious here.

There is not need for different endpoint for users with different roles. The module does not have any authentication/authorization logic on it's own. The users that will be able to authenticate with this module are the same users in your ProcessWire installation. When I mentioned implementing authentication, I was talking about logging in via GraphQL api, like via AJAX. In reality it will be the same $session->login('username', 'password'), nothing more.

1 hour ago, blynx said:

Since by defining legal templates in one endpoint those will be legal for anyone.

No, no. Of course not. I am sorry for the confusion here. Legal templates mean legal for the api. It does not mean it will make it available to the public. Like I mentioned earlier the module checks if the requesting user has permissions to view, edit, create and etc. If say you select user template as legal. It does not mean it will be public. It means it is available via api to those who are authorized to view it, authorized via ProcessWire's access control system.

I personally don't think there is even a need for the legal templates option. But it is helpful if you have too many templates and selecting only few can reduce the schema size and make api faster.

I think there is a bit confusion about this. I want emphasize that this module does not make any data public, nor does it anything private. That is not the module's concern. The module's job is to make your data available in a JSON format, in addition providing the ability to consume that JSON data via GraphQL api. If the user does not have permissions to view a certain page according to ProcessWire's access control system then he won't be able to fetch it.

45 minutes ago, blynx said:

Maybe it would also be handy to have an option to define "legalFields" in the same way as templates? So you can restrain the amount of data which is instantly public a bit more granularly. So you can just hide anything which doesn't need to be public at all.

The same goes for fields. When implemented the user will be able to access only those fields that he is authorized via ProcessWire's access control. But I will add an option for legal fields also, because that also could help reduce the initial schema size.

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50 minutes ago, Nurguly Ashyrov said:

I am sorry for the confusion here. Legal templates mean legal for the api. It does not mean it will make it available to the public. Like I mentioned earlier the module checks if the requesting user has permissions to view, edit, create and etc.

Ah sorry, I know - I expressed myself not accurately -

I also think legalTemplates and Fields are basically not necessary - but i think it is just a very convenient way to reduce the available data :)

 

50 minutes ago, Nurguly Ashyrov said:

I think there is a bit confusion about this. I want emphasize that this module does not make any data public, nor does it anything private. That is not the module's concern. The module's job is to make your data available in a JSON format, in addition providing the ability to consume that JSON data via GraphQL api. If the user does not have permissions to view a certain page according to ProcessWire's access control system then he won't be able to fetch it.

The confusion might be about this:

Normally in processwire templates you have to "make the fields public" by manually echoing data in a template (echo $page->title) - so actually for a guest user everything is hidden by default - though by permission actually authorized.

With this module - everything gets "unveiled" (to use another term here) automatically. This is what I meant by "public" and "private".

... am I right?

Edited by blynx
added second quote and blabla
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      Tags are widgets
      Hanna tags that have been inserted in a CKEditor window are "widgets" - they have a background colour for easy identification, are protected from accidental editing, and can be moved within the text by drag-and-drop.

      Options for tag attributes may be defined
      You can define options for a tag attribute so that editors must choose an option rather than type text. This is useful for when only certain strings are valid for an attribute and also has the benefit of avoiding typos.
      Add a new attribute for the Hanna tag, named the same as the existing attribute you want to add options for, followed by "__options". The options themselves are defined as a string, using a pipe character as a delimiter between options. Example for an existing attribute named "vegetables":
      vegetables__options=Spinach|Pumpkin|Celery|Tomato|Brussels Sprout|Potato You can define a default for an attribute as normal. Use a pipe delimiter if defining multiple options as the default, for example:
      vegetables=Tomato|Potato Dynamic options
      Besides defining static options as above, you can use one Hanna tag to dynamically generate options for another. For instance, you could create a Hanna tag that generates options based on images that have been uploaded to the page, or the titles of children of the page.
      Your Hanna tag that generates the options should echo a string of options delimited by pipe characters (i.e. the same format as a static options string).
      You will probably want to name the Hanna tag that generates the options so that it starts with an underscore (or whatever prefix you have configured as the "exclude" prefix in the module config), to avoid it appearing as an insertable tag in the HannaCodeDialog dropdown menu.
      Example for an existing attribute named "image":
      image__options=[[_images_on_page]] And the code for the _images_on_page tag:
      <?php $image_names = array(); $image_fields = $page->fields->find('type=FieldtypeImage')->explode('name'); foreach($image_fields as $image_field) { $image_names = array_unique( array_merge($image_names, $page->$image_field->explode('name') ) ); } echo implode('|', $image_names); Choice of inputfield for attribute
      You can choose the inputfield that is used for an attribute in the dialog.
      For text attributes the supported inputfields are text (this is the default inputfield for text attributes so it isn't necessary to specify it if you want it) and textarea. Note: any manual line breaks inside a textarea are removed because these will break the CKEditor tag widget.
      Inputfields that support the selection of a single option are select (this is the default inputfield for attributes with options so it isn't necessary to specify it if you want it) and radios.
      Inputfields that support the selection of multiple options are selectmultiple, asmselect and checkboxes.
      You can also specify a checkbox inputfield - this is not for attributes with defined options but will limit an attribute to an integer value of 1 or 0.
      The names of the inputfield types are case-insensitive.
      Example for an existing attribute named "vegetables":
      vegetables__type=asmselect Descriptions and notes for inputfields
      You can add a description or notes to an attribute and these will be displayed in the dialog.
      Example for an existing attribute named "vegetables":
      vegetables__description=Please select vegetables for your soup. vegetables__notes=Pumpkin and celery is a delicious combination. Notes
      When creating or editing a Hanna tag you can view a basic cheatsheet outlining the HannaCodeDialog features relating to attributes below the "Attributes" config inputfield.
      Advanced
      Define or manipulate options in a hook
      You can hook HannaCodeDialog::prepareOptions to define or manipulate options for a Hanna tag attribute. Your Hanna tag must include a someattribute__options attribute in order for the hook to fire. The prepareOptions method receives the following arguments that can be used in your hook:
      options_string Any existing string of options you have set for the attribute attribute_name The name of the attribute the options are for tag_name The name of the Hanna tag page The page being edited If you hook after HannaCodeDialog::prepareOptions then your hook should set $event->return to an array of option values, or an associative array in the form of $value => $label.
      Build entire dialog form in a hook
      You can hook after HannaCodeDialog::buildForm to add inputfields to the dialog form. You can define options for the inputfields when you add them. Using a hook like this can be useful if you prefer to configure inputfield type/options/descriptions/notes in your IDE rather than as extra attributes in the Hanna tag settings. It's also useful if you want to use inputfield settings such as showIf.
      When you add the inputfields you must set both the name and the id of the inputfield to match the attribute name.
      You only need to set an inputfield value in the hook if you want to force the value - otherwise the current values from the tag are automatically applied.
      To use this hook you only have to define the essential attributes (the "fields" for the tag) in the Hanna Code settings and then all the other inputfield settings can be set in the hook.
      Example buildForm() hook
      The Hanna Code attributes defined for tag "meal" (a default value is defined for "vegetables"):
      vegetables=Carrot meat cooking_style comments The hook code in /site/ready.php:
      $wire->addHookAfter('HannaCodeDialog::buildForm', function(HookEvent $event) { // The Hanna tag that is being opened in the dialog $tag_name = $event->arguments(0); // Other arguments if you need them /* @var Page $edited_page */ $edited_page = $event->arguments(1); // The page open in Page Edit $current_attributes = $event->arguments(2); // The current attribute values $default_attributes = $event->arguments(3); // The default attribute values // The form rendered in the dialog /* @var InputfieldForm $form */ $form = $event->return; if($tag_name === 'meal') { $modules = $event->wire('modules'); /* @var InputfieldCheckboxes $f */ $f = $modules->InputfieldCheckboxes; $f->name = 'vegetables'; // Set name to match attribute $f->id = 'vegetables'; // Set id to match attribute $f->label = 'Vegetables'; $f->description = 'Please select some vegetables.'; $f->notes = "If you don't eat your vegetables you can't have any pudding."; $f->addOptions(['Carrot', 'Cabbage', 'Celery'], false); $form->add($f); /* @var InputfieldRadios $f */ $f = $modules->InputfieldRadios; $f->name = 'meat'; $f->id = 'meat'; $f->label = 'Meat'; $f->addOptions(['Pork', 'Beef', 'Chicken', 'Lamb'], false); $form->add($f); /* @var InputfieldSelect $f */ $f = $modules->InputfieldSelect; $f->name = 'cooking_style'; $f->id = 'cooking_style'; $f->label = 'How would you like it cooked?'; $f->addOptions(['Fried', 'Boiled', 'Baked'], false); $form->add($f); /* @var InputfieldText $f */ $f = $modules->InputfieldText; $f->name = 'comments'; $f->id = 'comments'; $f->label = 'Comments for the chef'; $f->showIf = 'cooking_style=Fried'; $form->add($f); } }); Troubleshooting
      HannaCodeDialog includes and automatically loads the third-party CKEditor plugins Line Utilities and Widget. If you have added these plugins to your CKEditor field already for some purpose and experience problems with HannaCodeDialog try deactivating those plugins from the CKEditor field settings.
    • By horst
      Wire Mail SMTP

      An extension to the (new) WireMail base class that uses SMTP-transport

      This module integrates EmailMessage, SMTP and SASL php-libraries from Manuel Lemos into ProcessWire. I use this continously evolved libraries for about 10 years now and there was never a reason or occasion not to do so. I use it nearly every day in my office for automated composing and sending personalized messages with attachments, requests for Disposition Notifications, etc. Also I have used it for sending personalized Bulkmails many times.

      The WireMailSmtp module extends the new email-related WireMail base class introduced in ProcessWire 2.4.1 (while this writing, the dev-branch only).
       
      Here are Ryans announcement.



      Current Version 0.4.2
      Changelog: https://github.com/horst-n/WireMailSmtp/blob/master/CHANGELOG.md
      get it from the Modules Directory Install and Configure

      Download the module into your site/modules/ directory and install it.

      In the config page you fill in settings for the SMTP server and optionaly the (default) sender, like email address, name and signature.
      You can test the smtp settings directly there. If it says "SUCCESS! SMTP settings appear to work correctly." you are ready to start using it in templates, modules or bootstrap scripts.


      Usage Examples
      The simplest way to use it:
      $numSent = wireMail($to, $from, $subject, $textBody); $numSent = wireMail($to, '', $subject, $textBody); // or with a default sender emailaddress on config page This will send a plain text message to each recipient.
       
      You may also use the object oriented style:
      $mail = wireMail(); // calling an empty wireMail() returns a wireMail object $mail->to($toEmail, $toName); $mail->from = $yourEmailaddress; // if you don't have set a default sender in config // or if you want to override that $mail->subject($subject); $mail->body($textBody); $numSent = $mail->send(); Or chained, like everywhere in ProcessWire:
      $mail = wireMail(); $numSent = $mail->to($toEmail)->subject($subject)->body($textBody)->send(); Additionaly to the basics there are more options available with WireMailSmtp. The main difference compared to the WireMail BaseClass is the sendSingle option. With it you can set only one To-Recipient but additional CC-Recipients.
      $mail = wireMail(); $mail->sendSingle(true)->to($toEmail, $toName)->cc(array('person1@example.com', 'person2@example.com', 'person3@example.com')); $numSent = $mail->subject($subject)->body($textBody)->send(); The same as function call with options array:
      $options = array( 'sendSingle' => true, 'cc' => array('person1@example.com', 'person2@example.com', 'person3@example.com') ); $numSent = wireMail($to, '', $subject, $textBody, $options); There are methods to your disposal to check if you have the right WireMail-Class and if the SMTP-settings are working:
      $mail = wireMail(); if($mail->className != 'WireMailSmtp') { // Uups, wrong WireMail-Class: do something to inform the user and quit echo "<p>Couldn't get the right WireMail-Module (WireMailSmtp). found: {$mail->className}</p>"; return; } if(!$mail->testConnection()) { // Connection not working: echo "<p>Couldn't connect to the SMTP server. Please check the {$mail->className} modules config settings!</p>"; return; }  
      A MORE ADVANCED DEBUG METHOD!
      You can add some debug code into a template file and call a page with it:
      $to = array('me@example.com'); $subject = 'Wiremail-SMTP Test ' . date('H:i:s') . ' äöü ÄÖÜ ß'; $mail = wireMail(); if($mail->className != 'WireMailSmtp') { echo "<p>Couldn't get the right WireMail-Module (WireMailSmtp). found: {$mail->className}</p>"; } else { $mail->from = '--INSERT YOUR SENDER ADDRESS HERE --'; // <--- !!!! $mail->to($to); $mail->subject($subject); $mail->sendSingle(true); $mail->body("Titel\n\ntext text TEXT text text\n"); $mail->bodyHTML("<h1>Titel</h1><p>text text <strong>TEXT</strong> text text</p>"); $dump = $mail->debugSend(1); } So, in short, instead of using $mail->send(), use $mail->debugSend(1) to get output on a frontend testpage.
      The output is PRE formatted and contains the areas: SETTINGS, RESULT, ERRORS and a complete debuglog of the server connection, like this one:
       
      Following are a ...


      List of all options and features


      testConnection () - returns true on success, false on failures


      sendSingle ( true | false ) - default is false

      sendBulk ( true | false ) - default is false, Set this to true if you have lots of recipients (50+)


      to ($recipients) - one emailaddress or array with multiple emailaddresses

      cc ($recipients) - only available with mode sendSingle, one emailaddress or array with multiple emailaddresses

      bcc ($recipients) - one emailaddress or array with multiple emailaddresses

       
      from = 'person@example.com' - emailaddress, can be set in module config (called Sender Emailaddress) but it can be overwritten here

      fromName = 'Name Surname' - optional, can be set in module config (called Sender Name) but it can be overwritten here


      priority (3) - 1 = Highest | 2 = High | 3 = Normal | 4 = Low | 5 = Lowest

      dispositionNotification () or notification () - request a Disposition Notification


      subject ($subject) - subject of the message

      body ($textBody) - use this one alone to create and send plainText emailmessages

      bodyHTML ($htmlBody) - use this to create a Multipart Alternative Emailmessage (containing a HTML-Part and a Plaintext-Part as fallback)

      addSignature ( true | false ) - the default-behave is selectable in config screen, this can be overridden here
      (only available if a signature is defined in the config screen)

      attachment ($filename, $alternativeBasename = "") - add attachment file, optionally alternative basename


      send () - send the message(s) and return number of successful sent messages


      debugSend(1) - returns and / or outputs a (pre formatted) dump that contains the areas: SETTINGS, RESULT, ERRORS and a complete debuglog of the server connection. (See above the example code under ADVANCED DEBUG METHOD for further instructions!)


      getResult () - returns a dump (array) with all recipients (to, cc, bcc) and settings you have selected with the message, the message subject and body, and lists of successfull addresses and failed addresses,


      logActivity ($logmessage) - you may log success if you want

      logError ($logmessage) - you may log warnings, too. - Errors are logged automaticaly
       
       
      useSentLog (true | false) - intended for usage with e.g. third party newsletter modules - tells the send() method to make usage of the sentLog-methods - the following three sentLog methods are hookable, e.g. if you don't want log into files you may provide your own storage, or add additional functionality here

      sentLogReset ()  - starts a new LogSession - Best usage would be interactively once when setting up a new Newsletter

      sentLogGet ()  - is called automaticly within the send() method - returns an array containing all previously used emailaddresses

      sentLogAdd ($emailaddress)  - is called automaticly within the send() method
      Changelog: https://github.com/horst-n/WireMailSmtp/blob/master/CHANGELOG.md
       
       
    • By Robin S
      Sanitizer EasySlugger
      Allows the use of the EasySlugger library as Sanitizer methods.
      Installation
      Install the Sanitizer EasySlugger module.
      Usage
      The module adds four new sanitizer methods.
      slugger($string, $options)
      Similar to $sanitizer->pageName() - I'm not sure if there are any advantages over that method. Included because it is one of the methods offered by EasySlugger.
      $slug = $sanitizer->slugger('Lorem Ipsum'); // Result: lorem-ipsum utf8Slugger($string, $options)
      Creates slugs from non-latin alphabets.
      $slug = $sanitizer->utf8Slugger('这个用汉语怎么说'); // Result: zhe-ge-yong-han-yu-zen-me-shuo seoSlugger($string, $options)
      Augments the string before turning it into a slug. The conversions are related to numbers, currencies, email addresses and other common symbols.
      $slug = $sanitizer->seoSlugger('The price is $5.99'); // Result: the-price-is-5-dollars-99-cents See the EasySlugger readme for some more examples.
      seoUtf8Slugger($string, $options)
      A combination of utf8Slugger() and seoSlugger().
      $slug = $sanitizer->seoUtf8Slugger('价钱是 $5.99'); // Result: jia-qian-shi-5-dollars-99-cents $options argument
      Each of the methods can take an $options array as a second argument.
      separator (string): the character that separates words in the slug. Default: - unique (bool): Determines whether a random suffix is added at the end of the slug. Default: false $slug = $sanitizer->utf8Slugger('这个用汉语怎么说', ['separator' => '_', 'unique' => true]); // Result: zhe_ge_yong_han_yu_zen_me_shuo_3ad66c4  
      https://github.com/Toutouwai/SanitizerEasySlugger
      https://modules.processwire.com/modules/sanitizer-easy-slugger/
    • By Robin S
      If you've ever needed to insert links to a large number of files within CKEditor you may have found that the standard PW link modal is a somewhat slow way to do it.
      This module provides a quicker way to insert links to files on the page being edited. You can insert a link to an individual file, or insert an unordered list of links to all files on the page with a single click.
      CKEditor Link Files
      Adds a menu to CKEditor to allow the quick insertion of links to files on the page being edited.

      Features
      Hover a menu item to see the "Description" of the corresponding file (if present). Click a menu item to insert a link to the corresponding file at the current cursor position. The filename is used as the link text. If you Alt-click a menu item the file description is used as the link text (with fallback to filename if no description entered). If text is currently selected in the editor then the selected text is used as the link text. Click "* Insert links to all files *" to insert an unordered list of links to all files on the page. Also works with the Alt-click option. Menu is built via AJAX so newly uploaded files are included in the menu without the page needing to be saved. However, descriptions are not available for newly uploaded files until the page is saved. There is an option in the module config to include files from Repeater fields in the edited page. Nested Repeater fields (files inside a Repeater inside another Repeater) are not supported. Installation
      Install the CKEditor Link Files module.
      For any CKEditor field where you want the "Insert link to file" dropdown menu to appear in the CKEditor toolbar, visit the field settings and add "LinkFilesMenu" to the "CKEditor Toolbar" settings field.
       
      http://modules.processwire.com/modules/cke-link-files/
      https://github.com/Toutouwai/CkeLinkFiles
    • 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 a repeater item 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 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 Changelog
      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
      > Github: https://github.com/FlipZoomMedia/InputfieldRepeaterMatrixDuplicate
      > PW module directory: https://modules.processwire.com/modules/inputfield-repeater-matrix-duplicate/
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