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Add template context processors. - #1904

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alex-oleshkevich:context-processors
Dec 29, 2022
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Add template context processors.#1904
alex-oleshkevich merged 20 commits into
Kludex:masterfrom
alex-oleshkevich:context-processors

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@alex-oleshkevich

@alex-oleshkevich alex-oleshkevich commented Oct 6, 2022

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This PR adds template context processors.

import typing

from starlette.requests import Request
from starlette.templating import Jinja2Templates

def app_context(request: Request) -> typing.Dict[str, typing.Any]:
    return {'app': request.app}

templates = Jinja2Templates(directory='templates', context_processors=[
    app_context,
])

Async processors are not supported.

@Kludex

Kludex commented Oct 12, 2022

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What's the motivation for it? You can still perform an analogous logic without introducing the context_processors, correct?

@alex-oleshkevich

alex-oleshkevich commented Oct 12, 2022

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Yes, by copypasting. If you share variables with all templates (for example, teams in sidebar, account balance, etc) you have to generate and pass these variables to the template in every view. Context processors solve this problem. You define login in one place and template's context get automatically updated.

Kludex
Kludex reviewed Dec 25, 2022
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Flask has it: https://flask.palletsprojects.com/en/2.2.x/templating/#context-processors
Django has it: https://docs.djangoproject.com/en/4.1/ref/templates/api/#built-in-template-context-processors

Let's solve the documentation, and I'm fine with this. 馃憤

Comment thread docs/templates.md Outdated
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@Kludex Kludex added feature New feature or request staticfiles Static file serving labels Dec 25, 2022
alex-oleshkevich and others added 6 commits December 25, 2022 21:41
@alex-oleshkevich @Kludex
Update docs/templates.md
d814af5 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich @Kludex
Update docs/templates.md
1a30dad 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich @Kludex
Update docs/templates.md
ff446dd 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich @Kludex
Update docs/templates.md
b7cb002 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich @Kludex
Update docs/templates.md
aee1007 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich
remove async context processors docs
a7f323a
Kludex
Kludex previously approved these changes Dec 25, 2022
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I wrote a suggestion to simplify a bit the test, and the documentation.

Everything cool here. 馃憤

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alex-oleshkevich and others added 3 commits December 26, 2022 00:00
@alex-oleshkevich @Kludex
Update docs/templates.md
c6a60d7 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich @Kludex
Update tests/test_templates.py
03d6a99 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich
fix tests
4345cac
@alex-oleshkevich @Kludex
Update tests/test_templates.py
e8678d3 
Co-authored-by: Marcelo Trylesinski <[email protected]>
Kludex
Kludex reviewed Dec 27, 2022
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@alex-oleshkevich @Kludex
Update tests/test_templates.py
d97b3be 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@alex-oleshkevich

alex-oleshkevich commented Dec 29, 2022

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Are you waiting for anything from my side, @Kludex ?

@Kludex

Kludex commented Dec 29, 2022

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I was kind a waiting for you to press merge 馃憖

@alex-oleshkevich
alex-oleshkevich merged commit 008e3a5 into Kludex:master Dec 29, 2022
@alex-oleshkevich
alex-oleshkevich deleted the context-processors branch December 29, 2022 14:41
invisibleroads added a commit to invisibleroads/invisibleroads-macros-web that referenced this pull request Feb 11, 2023
@invisibleroads
Accomodate Kludex/starlette#1904
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aminalaee pushed a commit that referenced this pull request Feb 13, 2023
@alex-oleshkevich @Kludex @aminalaee
Add template context processors. (#1904)
a072a24 
Co-authored-by: Marcelo Trylesinski <[email protected]>
Viicos pushed a commit to Viicos/starlette that referenced this pull request Feb 16, 2023
@alex-oleshkevich @Kludex @Viicos
Add template context processors. (Kludex#1904)
7ed33de 
Co-authored-by: Marcelo Trylesinski <[email protected]>
@sync-by-unito sync-by-unito Bot mentioned this pull request Aug 28, 2023
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