Changes between Version 6 and Version 7 of HydroAdmin


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Timestamp:
12/21/2012 09:16:33 PM (3 years ago)
Author:
abki
Comment:

moved to AdminNext

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  • HydroAdmin

    v6 v7  
    1 Admin revamp project.
    2 
    3 What we propose here is a revamp of the the admin app looking for minimal work to customize the admin, striving for reusability and maintenability while still making it possible to:
    4 - extend every pages of the admin in an arbitrary fashion without having to rely on Javascript hacks
    5 - make it possible to add views easily
    6 - Refresh the design and make it responsive
    7 
    8 == Current admin limitations ==
    9 
    10 Current methods to customize the pages of the admin are the following:
    11 
    12 - most common way: Override ModelAdmin or Admin class methods, inject needed variables in template context and then override the templates: this can be made simpler, overriding templates is not considered future proof and can be made simpler
    13 - There are hooks to insert custom code (filter spec, admin actions) but it's predefined, not flexible and bound to features already defined in the admin. What if one wants a custom sidebar that fills the form dynamically from generated list of templates ?
    14 - Insert Javascript, this is the most flexible way to extend the admin, it's hacky and promotes creation of code that might not be accessible.
    15 - Overrindg templates: this is tricky since and has the same limitations as above lake of maintenability, readability and reusability and can make an extensive (anti-pattern) use of templatetags to get things done.
    16 - Monkeypatching: ''I have no example of that but I know it's used in production on some sites''
    17 
    18 Following limitations are from my own and might not reflect reality don't hesitate to comment or strip if it's not appropriate:
    19 
    20 - In a context where you have several admin sites or experiences because of different user permissions or settings, templates are the only reusable part. You can create functions to encapsulate some functionality but there is no canvas for that and can become a bit messy with a big file named like admin_views_utils.py.
    21 - Since urls are computed for every requests, it makes the admin impractical for user facing applications.
    22 - ...
    23 
    24 == Usecases ==
    25 
    26 - Create a dashboard
    27 - Manipulate objects which are not model instances ([http://code.larlet.fr/django-roa/wiki/Home django-roa] [https://github.com/liberation/django-sneak django-sneak], [https://github.com/liberation/django-admincommand django-admin-commands])
    28 - Read-only objects
    29 - Going beyond what is offered by current ModelAdmin in terms of form layout/experience ([https://github.com/liberation/django-admin-tabs django-admin-tabs])
    30 - Customize user experience based on cookie
    31 - Target other devices ([https://github.com/jezdez/django-mobileadmin django-mobileadmin], maybe something more up-to-date ?)
    32 - Integrate frontend features/experience in the backend
    33 - Add links to other views in the admin index page
    34 
    35 == Bugs, Feature requests ==
    36 
    37 [https://code.djangoproject.com/query?status=assigned&status=new&status=reopened&component=contrib.admin&col=id&col=summary&col=status&col=owner&col=type&col=component&order=priority Trac query]
    38 
    39 == Features ==
    40 
    41 High:
    42 - Same features as current admin
    43 - Responsive
    44 - Use class-based-views throughout
    45 - Clear patterns to extend the admin
    46 - ...
    47 
    48 Low:
    49 - Reusable components across projects and within the same project
    50 - ...
    51 
    52 Spotlight of current feature of the admin
    53 - The new admin app should, like the current admin app, allow the user to enable full secure (permission-based) CRUD in one line of code.
    54 
    55 == Examples of Admin Extension in the Wild ==
    56 
    57 In alphabetical order:
    58 
    59 * django-admin-tools (http://pypi.python.org/pypi/django-admin-tools/0.4.1)
    60  - a full featured and customizable dashboard
    61  - a customizable menu bar
    62  - tools to make admin theming easier (''what does it mean ?'')
    63 * Grappelli (http://www.grappelliproject.com/)
    64  - It's a skin
    65 * [https://github.com/divio/djangocms-admin-style djangocms-admin-style]
    66 * [https://github.com/django-djam/django-djam Django-djam]
    67 
    68 Built on top of admin-tools:
    69 * django-admintools-bootstrap (https://bitbucket.org/salvator/django-admintools-bootstrap)
    70 * pops (https://github.com/tswicegood/pops -- fork/near rewrite of above)
    71 * …
    72 
    73 Simple Bootstrap Themes:
    74 * https://github.com/michaelhelmick/django-bootstrap-admin
    75 * https://github.com/gkuhn1/django-admin-templates-twitter-bootstrap
    76 * https://github.com/riccardo-forina/django-admin-bootstrapped
    77 * https://github.com/aobo711/bootstrap-django-admin
    78 * …
    79 
    80 
    81 == Pros ==
    82 
    83 - No more hacks: Offers a clear canvas to extend the admin
    84 - More reusable components for Django
    85 - No more monkey-patching
    86 - ...
    87 
    88 == Cons ==
    89 
    90 - Backward incompatible
    91 - More layer in view stack
    92 - ...
    93 
    94 == Possible implementation ==
    95 
    96 === Hydro ===
    97 
    98 Solution inspired from [http://en.wikipedia.org/wiki/PHP-Nuke#Features_of PHP-Nuke] in a compound word it's a ''compositing widget framework''.
    99 
    100 - '''Hydro''' this is an application framework with all of what is needed to create an application using pages/widgets classes
    101 - '''HydroAdmin''' this is an example app of the Hydro application that use the compositing widget framework to build a backend equivalent in feature to current admin
    102 
    103 [https://github.com/amirouche/django-hydro Current code of the widget compositing framework at github]
    104 
    105 == Comments ==
    106 
    107 - Instead of proposing a specific solution, let's focus on identifying the issues that the current admin has without the editorial content.  For example "no more monkey patching" as a pro without an actual example of functionality that can not be done without monkey patching the admin is baseless. ''–Travis Swicegood''
    108  - I reworked the page to try to make it more obvious that it's not Hydro the next admin and main topic but that the Hydro application is just an idea with code. ''–Amirouche''
    109 - A refresh of the  UI can be done in a separate project and land in master sooner, I think, same goes for [https://groups.google.com/forum/?fromgroups=#!topic/django-developers/aj1VEkA3FwI improving current javascript facility]. ''–Amirouche''
     1Page for brainstorming about next/new-new admin application is AdminNext
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