django-mflf 0.1.0

Django model field list field

Django model field list field

This is a Django model field that provides a list of some other model's fields. Fields can be multi-selected and "under the hood" are stored as a comma-separated string. Also package provides simple form field with the same capabilities.

Requirements

• Python 2.7+ or Python 3.3+
• Django 1.11+

Installation

Install django-mflf using pip:

pip install django-mflf

Add model_field_list to INSTALLED_APPS. Example:

INSTALLED_APPS = (
    ...
    'model_field_list',
    ...
)

Example usage

Model field:

from model_field_list import ModelFieldListField

class ProductKind(models.Model):
    name = models.CharField(max_length=100)
    comparison = ModelFieldListField('comparison criteria', source_model=Product)

If referenced model has many fields it would be useful to use FilteredSelectMultiple in Django admin:

from django.contrib.admin.widgets import FilteredSelectMultiple

class ProductKindAdminForm(forms.ModelForm):
    class Meta:
        widgets = {
            # different widget label is intentional
            'comparison': FilteredSelectMultiple('product properties', False)
        }

Simple form field:

from django.contrib.admin.widgets import FilteredSelectMultiple
from model_field_list import ModelFieldListFormField

class ProductExportForm(ExportForm):
    export_fields = ModelFieldListFormField(source_model=Product, label='Export fields',
                                            widget=FilteredSelectMultiple('свойства товара', False))

Limitations

• All model fields are listed, no option to filter them in any way.
• Field order can't be customized - they are sorted by the order of their definition in a model.