Comparision with django-cotton #552
Replies: 3 comments 29 replies
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The ability to define Python objects like lists within the template is really nice! (See Passing Python data types) |
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Btw, curiosity got the better of me, and I got a working algo for safely evaluating expressions, so theoretically we could have a similar feature to what django-cotton does python expressions within HTML. E.g. in Cotton, they can pass a static list to a component like so: <c-select name="q1" :options="['yes', 'no', 'maybe']" />Django-cotton uses The result is that our expressions can contain variables. (For context, unlike plain So, we could have something like this (exaggarated example): {% component "my_comp"
:items="[a for a in [1, 2, *(list_a if 1 > 2 else list_b) ] ]"
:bool_val="not is_active"
:attrs="{**dict_1, **dict_2}"
%}
{% endcomponent %}This would fit nicely with what I talked about in #539. |
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@oliverhaas If you're interested in that, have a look at https://github.com/JuroOravec/alpinui/blob/main/packages/django-expr/README.md :) By default it doesn't allow function calls, but that can be configured via |
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Is the django-cotton style possible yet? Thanks |
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@aehlke Not yet, but with the addition of extensions, we're getting closer. But there's still a few blockers:
After these, it will be possible to write an extension that would pre-process the templates. And as always, if you want to see some features sooner, be sure to support this project! |
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@aehlke Thanks for letting us know that this is something you would want. Is this a reason to move from django-cotton to django-components? Do you have a project in mind for migration? |
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@EmilStenstrom just evaluating current django landscape as I prepare to resume working in it after several long years. not a current user of this or cotton. thanks |
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For me personally, the syntax of django-cotton itself is a nice feature, which leads me to the following question: @EmilStenstrom Would django-components be open to include an optional cotton-like html tag syntax? We've already started implemented something along those lines in one of our projects to try it out. It's mostly a matter of taste, of course. Upsides of custom html tags are mainly formatting and intellisense regarding css classes by default. I'm using vscode, and I'm also checking out whether (automatically generated!) code snippets and html data providers would help the DX. |
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@JuroOravec |
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@oliverhaas So the reasoning is "since my home-make components are very close to native HTML tags (your button component), seeing Intellisense and autoformatting for templates would be awesome :) |
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Btw, @oliverhaas, you mentioned that
Does it mean that you are using django-cotton, or that you implemented your own script that converts the custom HTML-tags to django tags? For context, I agree with @EmilStenstrom that this should not be in the core package. I was thinking about the plugins for django_components, and realized that they would have to operate on the level of So the options for you would be to:
Of the two, the Loader would be probably a more complex one. Because I can imagine that, to make it work generally, one might have to use similar approach to the cached Loader, nesting other loaders in it: 'loaders':[(
'path.to.loaders.Html2DjangoLoader', [
# Nested
'django.template.loaders.filesystem.Loader',
'django.template.loaders.app_directories.Loader',
...
]
)],Whereas for the plugin, it would be just a matter of defining a function that modifies the So if you have the logic for converting HTML to django written down, then it should be easy to set things up once plugins are supported. |
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@JuroOravec Here is our proof of concept, which is basically what you said: A custom template loader which does some parsing, and then just uses django-components like normal. It's heavily inspired by django-cotton. Maybe it leads to something useful... I think that's it for now from my end. Thanks for the discussion, and all the good work of you two. |
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Since this discussion happened, I've been convinced by the popularity of django-cotton that this is something that people really want. I think Juro's idea of implementing this as an optional extension is a nice way of letting people get the cookie or eat it, whichever they want. |
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https://github.com/wrabit/django-cotton?tab=readme-ov-file#comparison-with-other-packages
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