django-admin-easy

Collection of admin fields, decorators and mixin to help to create computed or custom fields more friendly and easy way

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Installation

Requirements: Django > 3 and Python > 3

pip install django-admin-easy==0.8.0

For Django < 1.8 or Python 2.x

pip install django-admin-easy==0.4.1
For Django < 2

pip install django-admin-easy==0.7.0

How it Works

When you want to display a field on Django Admin, and this field doesn't exist in your Model or you need to compute some information, like a Image or Link, you will need to create a method on your ModelAdminClass like this:

.. code-block:: python

from django.contrib import admin

class YourAdmin(admin.ModelAdmin):
    fields = ('sum_method', 'some_img', 'is_true')

    def sum_method(self, obj):
        sum_result = obj.field1 + obj.field2 + obj.field3
        return '<b>%s</b>' % sum_result
    sum_method.short_description = 'Sum'
    sum_method.admin_order_field = 'field1'
    sum_method.allow_tags = True

    def some_img(self, obj):
        return '<img scr="%s">' % obj.image
    some_img.short_description = 'image'
    some_img.admin_order_field = 'id'
    some_img.allow_tags = True

    def is_true(self, obj):
        return obj.value > 0
    is_true.short_description = 'Positive'
    is_true.admin_order_field = 'value'
    is_true.boolean = True

It takes too much lines! =D

With django-admin-easy you can easily create this field with less lines:

.. code-block:: python

from django.contrib import admin
import easy

class YourAdmin(admin.ModelAdmin):
    fields = ('sum_method', 'some_img', 'is_true')

    sum_method = easy.SimpleAdminField(lambda obj: '<b>%s</b>' % (obj.field1 + obj.field2 + obj.field3), 'Sum', 'field1', True)
    some_img = easy.ImageAdminField('image', 'id')
    is_true = easy.BooleanAdminField('Positive', 'value')

If you still prefer using a custom method, you can use our decorators, like this:

.. code-block:: python

from django.contrib import admin
import easy

class YourAdmin(admin.ModelAdmin):
    fields = ('sum_method', 'some_img', 'is_true')

    @easy.smart(short_description='Sum', admin_order_field='field1', allow_tags=True )
    def sum_method(self, obj):
        sum_result = obj.field1 + obj.field2 + obj.field3
        return '<b>%s</b>' % sum_result

    @easy.short(desc='image', order='id', tags=True)
    def some_img(self, obj):
        return '<img scr="%s">' % obj.image

    @easy.short(desc='Positive', order='value', bool=True)
    def is_true(self, obj):
        return obj.value > 0

Another Decorators

In all of this extra decorators, you can use short or smart arguments to complement field information.

Allow HTML tags

.. code-block:: python

@easy.with_tags()
def some_field_with_html(self, obj):
    return '<b>{}</b>'.format(obj.value)
# output some as: mark_safe("<b>something</b>")

if value is 5, will display:

5 and not <b>5</b> on admin page.

Cached field

If you, for some reason, need to cache a custom field on admin

.. code-block:: python

@easy.cache(10)# in secondd, default is 60
def some_field_with_html(self, obj):
    return obj.related.some_hard_word()

If you change something on your model, or some related object, you can clean this cache using this easy way:

.. code-block:: python

import easy
# wherever you want
easy.cache_clear(my_model_instance)

# or
class MyModel(models.Model):
    # ... fields

    def save(*args, **kwargs):
        easy.cache_clear(self)
        super(MyModel, self).save(*args, **kwargs)

Django template filter

Can be used with all template filters on your project.

.. code-block:: python

# builtin template filter like {{ value|title }}
@easy.filter('title')
def some_field_with_html(self, obj):
    return 'ezequiel bertti'
# output: "Ezequiel Bertti"

# like {% load i10n %} and {{ value|localize }}
@easy.filter('localize', 'l10n')
def some_field_with_html(self, obj):
    return 10000
# output: "10.000"

# like {{ value|date:'y-m-d' }}
@easy.filter('date', 'default', 'y-m-d')
def some_field_with_html(self, obj):
    return datetime(2016, 06, 28)
# output: "16-06-28"

Django utils functions

Tested with:

.. code-block:: python

@easy.utils('html.escape')
@easy.utils('html.conditional_escape')
@easy.utils('html.strip_tags')
@easy.utils('safestring.mark_safe')
@easy.utils('safestring.mark_for_escaping')
@easy.utils('text.slugify')
@easy.utils('translation.gettext')
@easy.utils('translation.ugettext')
@easy.utils('translation.gettext_lazy')
@easy.utils('translation.ugettext_lazy')
@easy.utils('translation.gettext_noop')
@easy.utils('translation.ugettext_noop')
def your_method(self, obj):
    return obj.value

More Examples

.. code-block:: python

from django.contrib import admin
import easy

class YourAdmin(admin.ModelAdmin):
    list_fields = ('id', 'custom1', 'custom2', 'custom3' ... 'customN')

    actions = ('simples_action',)

    @easy.action('My Little Simple Magic Action')
    def simple_action(self, request, queryset):
        return queryset.update(magic=True)

    # actoin only for user that has change permission on this model
    @easy.action('Another Simple Magic Action', 'change')
    def simple_action(self, request, queryset):
        return queryset.update(magic=True)

    # render a value of field, method, property or your model or related model
    simple1 = easy.SimpleAdminField('model_field')
    simple2 = easy.SimpleAdminField('method_of_model')
    simple3 = easy.SimpleAdminField('related.attribute_or_method')
    simple4 = easy.SimpleAdminField('related_set.count', 'count')
    simple5 = easy.SimpleAdminField(lambda x: x.method(), 'show', 'order_by')

    # render boolean fields
    bool1 = easy.BooleanAdminField(lambda x: x.value > 10, 'high')

    # render with string format fields
    format1 = easy.FormatAdminField('{o.model_field} - {o.date_field:Y%-%m}', 'column name')

    # render foreignkey with link to change_form in admin
    fk1 = easy.ForeignKeyAdminField('related')

    # render foreignkey with link to change_form in admin and related_id content as text
    fk2 = easy.ForeignKeyAdminField('related', 'related_id')

    # render foreignkey_id, like raw_id_fields, with link to change_form in admin and related_id content as text
    # without extra queries or select_related to prevent extra n-1 queries
    raw1 = easy.RawIdAdminField('related')

    # render template
    template1 = easy.TemplateAdminField('test.html', 'shorty description', 'order_field')

    # render to change_list of another model with a filter on query
    link1 = easy.LinkChangeListAdminField('app_label', 'model_name', 'attribute_to_text',
                                          {'field_name':'dynamic_value_model'})

    link2 = easy.LinkChangeListAdminField('app_label', 'model_name', 'attribute_to_text',
                                          {'field_name':'dynamic_value_model'},
                                          {'another_field': 'static_value'})

    # render link to generic content type fields
    # don't forget to use select_related with content-type to avoid N+1 queries like example below
    generic = easy.GenericForeignKeyAdminField('generic')

    def get_queryset(self, request):
        qs = super().get_queryset(request)

        return qs.select_related('content_type')

    # or enable cache
    generic = easy.GenericForeignKeyAdminField('generic', cache_content_type=True)

    # display image of some model
    image1 = easy.ImageAdminField('image', {'image_attrs':'attr_value'})

    # use django template filter on a field
    filter1 = easy.FilterAdminField('model_field', 'upper')
    filter2 = easy.FilterAdminField('date_field', 'date', 'django', 'y-m-d')
    filter3 = easy.FilterAdminField('float_field', 'localize', 'l18n')

    @easy.smart(short_description='Field Description 12', admin_order_field='model_field')
    def custom12(self, obj):
        return obj.something_cool()

    @easy.short(desc='Field Description 1', order='model_field', tags=True)
    def decorator1(self, obj):
        return '<b>' + obj.model_field + '</b>'

    @easy.short(desc='Field Description 2', order='model_field', bool=True)
    def decorator2(self, obj):
        return obj.model_field > 10

If you want to use on admin form to show some information, don't forget to add your custom field on readonly_fields attribute of your admin class

.. code-block:: python

from django.contrib import admin
import easy

class YourAdmin(admin.ModelAdmin):
    fields = ('custom1', 'custom2', 'custom3' ... 'customN')
    readonly_fields = ('custom1', 'custom2', 'custom3' ... 'customN')

    custom1 = easy.ForeignKeyAdminField('related')
    # ...

Another way to use is directly on list_fields declaration:

.. code-block:: python

from django.contrib import admin
import easy

class YourAdmin(admin.ModelAdmin):
    list_fields = (
        easy.TemplateAdminField('test.html', 'shorty description', 'order_field'),
        easy.ImageAdminField('image', {'image_attrs':'attr_value'}),
        # ...
    )

    # ...

Mixin

To help you to create a custom view on django admin, we create the MixinEasyViews for your Admin Classes

.. code-block:: python

from django.contrib import admin
import easy

class MyModelAdmin(easy.MixinEasyViews, admin.ModelAdmin):
    # ...

    def easy_view_jump(self, request, pk=None):
        # do something here
        return HttpResponse('something')

To call this view, you can use this reverse:

.. code-block:: python

from django.core.urlresolvers import reverse

# to do something with one object of a model
reverse('admin:myapp_mymodel_easy', args=(obj.pk, 'jump'))

# or to do something with a model
reverse('admin:myapp_mymodel_easy', args=('jump',))

Or one HTML template

.. code-block:: html

#<!-- to do something with one object of a model -->
{% url 'admin:myapp_mymodel_easy' obj.pk 'jump' %}

#<!-- or to do something with a model -->
{% url 'admin:myapp_mymodel_easy' 'jump' %}

Utilities

Response for admin actions

Return for the change list and show some message for the user keeping or not the filters.

.. code-block:: python

from django.contrib import admin
from django.contrib import messages
import easy

class YourAdmin(admin.ModelAdmin):
    # ...
    actions = ('simples_action',)

    def simples_action(self, request, queryset):

        success = queryset.do_something()
        if success:
            return easy.action_response(request, 'Some success message for user', keep_querystring=False)
        else:
            return easy.action_response(request, 'Some error for user', messages.ERROR)

        # or just redirect to changelist with filters
        return easy.action_response()

So easy, no?

Screenshot

Using example of poll of django tutorial

.. image:: https://raw.githubusercontent.com/ebertti/django-admin-easy/master/screenshot/more.png

.. image:: https://raw.githubusercontent.com/ebertti/django-admin-easy/master/screenshot/related.png

Please help us

This project is still under development. Feedback and suggestions are very welcome and I encourage you to use the Issues list <http://github.com/ebertti/django-admin-easy/issues>_ on Github to provide that feedback.

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Authors

The django-admin-easy was originally created by Ezequiel Bertti @ebertti <https://github.com/ebertti>_ October 2014.

Changelog

0.8.0

Add new field GenericForeignKeyAdminField Add Support for Django 5.0 and 5.1 Add Support for Python 3.12 Drop support for Django < 2.0 Add typing and docstring (thanks codeium <https://codeium.com/>_)
0.7.0

Add support for Django 4.0, 4.1 and 4.2 Add support for Python 3.10 and 3.11 Add Github Actions for testing Add job to realease on pypi Thanks @Lex98
0.6.1

Add support for Django 3.2 and Python 3.9
0.6

Add RawIdAdminField
0.5.1

Add permission on action decorator
0.4.1

Django 2.0
0.4

Django 1.11 Create module utils with action_response
0.3.2

Add params_static to LinkChangeListAdminField
0.3.1

Add FormatAdminField
0.3

Add import from __future__ on all files Django 1.10 More decorators More admin fields
0.2.2

Add MixinEasyViews
0.2.1

Fix for Django 1.7 from @kevgathuku <https://github.com/kevgathuku>_

Star History

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ebertti / django-admin-easy

readme

django-admin-easy

Installation

How it Works

Another Decorators

More Examples

Mixin

Utilities

Screenshot

Please help us

Authors

Changelog

Star History