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Additional, dynamic fields for all Django models.

Project description

This module offers an easy way to attach auxiliary information to Django models. It allows configuring custom forms through the administration interface.


  1. Add "specifications" to INSTALLED_APPS.

  2. Create a specification = ForeignKey("specifications.Specification") on the model you want to use specifications with. The foreign key can be nullable or required, as you wish.

  3. Create the place where the specification field data is actually stored:

    from specifications.models import SpecificationValueFieldBase
    class MyObjectField(SpecificationValueFieldBase):
        parent = models.ForeignKey(
        class Meta:
            ordering = ["field__group__ordering", "ordering"]
  4. Inherit from FormWithSpecification when creating your ModelForm:

    from specifications.forms import FormWithSpecification
    class MyObjectForm(FormWithSpecification):
        class Meta:
            model = MyObject
  5. If you want to edit models with specifications you might want to use the following snippet:

    from specifications.admin import ModelAdminWithSpecification
    class MyObjectAdmin(ModelAdminWithSpecification):
        def get_fieldsets(self, request, obj=None):
            # Define your fieldsets
            fieldsets = [...]
            if self.can_add_specification_fields(request, obj):
                # Extend your fieldset with specification fields
            return fieldsets

The fields are available after saving a specification. The specification can be changed, but you risk losing data if you do this.

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