Hello! First, sorry if it is not appropriate to bring back this thread from the grave, but I spent some time on finding a solution for this and came up with an implementation that:
1. Needs very little code 2. Re-uses the existing code for the extends and include tags I have written a Gist that contain the full code (including text) and a bit of context: https://gist.github.com/pvanliefland/bb676a906b900c7e29e46b474038a6ca Do you think this is worth discussing here? *Usage:* <body> {% embed "section.html" %} {% block title %}Stats{% endblock %} {% block content %} <ul> <li>A stat</li> ... </ul> {% endblock %} {% endembed %} {% embed "section.html" %} {% block title %}Activity{% endblock %} {% block content %} <h2>Yesterday</h2> <p>All my troubles seem so far away</p> {% endblock %} {% endembed %} </body> On Wednesday, December 2, 2020 at 9:51:03 AM UTC+1 jure.er...@gmail.com wrote: > Final comment for this: > > we implemented the tag in our dynamicforms library (commit with initial > implementation > <https://github.com/velis74/DynamicForms/commit/c65588b0423fe49ebfc141e4a5016abc74d4e854> > ). > > The initial implementation straight-out replaces the django include tag, > giving it an additional option to also declare a block tag with nested > blocks. That didn't work on Django 2.2. though, so the final implementation > now splits the tag in block and non-block variants. > > Anyway, I wanted to say that initial implementation wasn't much > feature-creep on the include tag anyway. It should be a very small PR that > would eliminate a huge disclaimer in documentation in exchange for a couple > (literally) lines of new code. > > TL;DR: > > So: having implemented this, I'd say that code feature-creep is cheaper > than documentation / support effort needed to explain away demands for the > functionality? > > Curtis, you're free to use this in your Sniplates. I'd just warn about the > helper function parse_tag which we got here > <https://www.caktusgroup.com/blog/2017/05/01/building-custom-block-template-tag/> > > and don't know the license of, yet. We will get rid of it ourselves if > there's no reply shortly, but it was convenient when programming the tag :). > > To also attempt answer Carlton's fears / second thoughts: this form of the > tag gives you content / presentation separation in your template. Your main > template contains and provides all the data required for displaying and you > then display it by including the actual rendering template, giving it the > content in content blocks. This way you can easily swap presentation > without having to swap an entire page's worth of template. Very easy to do > "view result" vs "view code" in your templates then to give one example. In > our templates we use it to seamlessly switch between various CSS frameworks > that we support. > > LP, > Jure > > > On 19. 08. 20 18:08, Carlton Gibson wrote: > > Hey Sam. > > (“I” is a placeholder in what follows…) > > What I’m missing here, personally, having read this thread, and the > old-one is motivating examples where I go "wow, yeah, that would really > make my life easier”. > > I read it and think yeah maybe. I see a couple of positive comments from > people who’s judgement I would trust. But I STILL don’t really see what I’d > gain. (I could spend hours thinking over it but it’s not clear I have that > time.) > > Then I see Curtis, who’s judgement I do trust, saying “I have this (or > similar) working in my package over here”. I then think, well let’s push > forward with that, and I’ll put it on the list to check out next time I > need something in this ballpark. (Not a placeholder: I think I recall > Curtis showing me this package in Florence a few years ago, but I have to > admit to forgetting about it until this thread came up.) > > I suspect it’s not really that pressing: after all this time, maybe a > custom tag is good/easy enough…? — the recent survey showed that people > aren’t abandoning the DTL on mass: the lack of this feature doesn’t seem to > be enough to make people jump ship. > > Maybe this is the missing feature, but can be show WHY it would be so > good? > > I think compelling use-cases gain converts. The advantage of the > third-party package is it allows that to be worked out, outside the main > development cycle, which is so slow, and had such strong backwards > compatibility constraints that we simply can’t take things which are fully > worked out… — it has to be right, or there about when we first take it. > > C. > > > > > On 19 Aug 2020, at 15:34, Sam Willis <sam.w...@gmail.com> wrote: > > Hi Carlton, > > Thanks for chipping in. > > As a long time user of Django (I first stated with it back in 2006) from > my experience where is excels is in providing a full toolbox for building > things for the web. The most successful “third party” apps and library’s > tend to be very large editions of functionality rather than small functions > and template tags. I personally stay away from small libraries as I have > been bitten before when they are no longer maintained. > > One of the criticisms of Node.js and from personal experience reasons why > people prefer Django and similar “everything included” frameworks is the > fragmentation of tools and large number of dependancies. > > For this reason I don’t think there will ever be a successful “third > party” implementation of this particular idea. It’s not a big enough tool > for people to justify adding to their dependancies. (People are more likely > to swap to Jinja which has Macros and are “sort of” similar if you squint > at them) > > Also, last year I had a quick look at my old implementation again and I > think I came to the conclusion that it would require some small changes to > core in order to work. I don’t remember what they are now though. > > I understand completely that the barrier for adding new functionality to > Django should be high. It important to maintain its “maintainability” and > stop feature creep, but I also think that there is a risk of not developing > new ideas and attracting new developers and users if it is only > “maintained”. > > (Obviously there are new things happing like the incredible and exciting > work going into async!) > > Anyway, to summarise, I think this needs to be in core to get traction and > for people to discover it. For some ideas going the external route to prove > it certainly makes sense but for others (like this) I think it should be > developed though consensus in the core framework. > > Reusable template components are still an unsolved problem that would be > lovely to solve. > Thanks! > Sam > On Wednesday, August 19, 2020 at 1:05:15 PM UTC+1 jure.er...@gmail.com > wrote: > >> It definitely does. Thanks. >> >> Jure >> >> On 19/08/2020 14:03, Carlton Gibson wrote: >> > From the thread, I’d suggest collaboration with Curtis if the ideas are >> similar enough. >> > >> > Also from the thread: the idea seems to fit between include as we have >> it now, and a custom tag. >> > Maybe that gap hasn’t been wide enough to grasp sufficient interest? >> > >> > I think the standard path for inclusion into core goes more or less: >> > >> > * Here’s an idea >> > * Here’s a third-party implementation. >> > * Everyone[*] is using it, and the troubles have been ironed-out >> > * let’s merge it. >> > >> > [*]: Everyone ≈ a good number. >> > >> > For a third-party lib, there’s no need for it ever get to the last >> step. (It could but it doesn’t have to.) >> > Everything we can keep somewhere else makes Django more maintainable, >> so there’s a general preference for NOT including things if possible. >> > >> > Hopefully that makes sense. >> > >> > Kind Regards, >> > >> > Carlton >> > >> > > -- > You received this message because you are subscribed to the Google Groups > "Django developers (Contributions to Django itself)" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-develop...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-developers/4b1a3f96-9fa4-4ab3-9213-b00911a57750n%40googlegroups.com > > <https://groups.google.com/d/msgid/django-developers/4b1a3f96-9fa4-4ab3-9213-b00911a57750n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > -- > You received this message because you are subscribed to the Google Groups > "Django developers (Contributions to Django itself)" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to django-develop...@googlegroups.com. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-developers/D9AF6228-F579-43B7-B6C4-DBDC91DF4031%40gmail.com > > <https://groups.google.com/d/msgid/django-developers/D9AF6228-F579-43B7-B6C4-DBDC91DF4031%40gmail.com?utm_medium=email&utm_source=footer> > . > > -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" group. 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