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django-forms-builder 0.7.9

A Django reusable app providing the ability for admin users to create their own forms.

Latest Version: 0.10

https://secure.travis-ci.org/stephenmcd/django-forms-builder.png?branch=master

django-forms-builder

Created by Stephen McDonald

A Django reusable app providing the ability for admin users to create their own forms within the admin interface drawing from a range of field widgets such as regular text fields, drop-down lists and file uploads. Options are also provided for controlling who gets sent email notifications when a form is submitted. All form entries are made available in the admin via CSV export.

HTML5 Features

The folliwng HTML5 form features are supported.

  • placeholder attributes
  • required attributes
  • email fields
  • date fields
  • datetime fields
  • number fields
  • url fields

Installation

The easiest way to install django-forms-builder is directly from PyPi using pip or setuptools by running the respective command below:

$ pip install -U django-forms-builder

or:

$ easy_install -U django-forms-builder

Otherwise you can download django-forms-builder and install it directly from source:

$ python setup.py install

Project Configuration

Once installed you can configure your project to use django-forms-builder with the following steps.

Add forms_builder.forms to INSTALLED_APPS in your project's settings module:

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'django.contrib.admin',
    'forms_builder.forms',
)

Then add forms_builder.forms.urls to your project's urls module:

from django.conf.urls.defaults import patterns, include, url
import forms_builder.forms.urls # add this import

from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
    url(r'^admin/', include(admin.site.urls)),
    url(r'^forms/', include(forms_builder.forms.urls)),
)

Finally, sync your database:

$ python manage.py syncdb

As of version 0.5, django-forms-builder provides South migrations. If you use south in your project, you'll also need to run migrations:

$ python manage.py migrate forms

Usage

Once installed and configured for your project just go to the admin page for your project and you will see a new Forms section. In this you can create and edit forms. Forms are then each viewable with their own URLs. A template tag render_built_form is also available for displaying forms outside of the main form view provided. It will display a form when given an argument in one of the following formats, where form_instance is an instance of the Form model:

{% render_build_form form_instance %}
{% render_build_form form=form_instance %}
{% render_build_form id=form_instance.id %}
{% render_build_form slug=form_instance.slug %}

This allows forms to be displayed without having a form instance, using a form's slug or ID, which could be hard-coded in a template, or stored in another model instance.

File Uploads

It's possible for admin users to create forms that allow file uploads which can be accessed via a download URL for each file that is provided in the CSV export. By default these uploaded files are stored in an obscured location under your project's MEDIA_ROOT directory but ideally the should be stored somewhere inaccessible to the public. To set the location where files are stored to be somewhere outside of your project's MEDIA_ROOT directory you just need to define the FORMS_BUILDER_UPLOAD_ROOT setting in your project's settings module. Its value should be an absolute path on the web server that isn't accessible to the public.

Configuration

The following settings can be defined in your project's settings module.

  • FORMS_BUILDER_FIELD_MAX_LENGTH - Maximum allowed length for field values. Defaults to 2000
  • FORMS_BUILDER_LABEL_MAX_LENGTH - Maximum allowed length for field labels. Defaults to 20
  • FORMS_BUILDER_UPLOAD_ROOT - The absolute path where files will be uploaded to. Defaults to None
  • FORMS_BUILDER_USE_HTML5 - Boolean controlling whether HTML5 form fields are used. Defaults to True
  • FORMS_BUILDER_USE_SITES - Boolean controlling whether forms are associated to Django's Sites framework. Defaults to "django.contrib.sites" in settings.INSTALLED_APPS
  • FORMS_BUILDER_CHOICES_QUOTE - Char to start a quoted choice with. Defaults to the backtick char: `
  • FORMS_BUILDER_CHOICES_UNQUOTE - Char to end a quoted choice with. Defaults to the backtick char: `
  • FORMS_BUILDER_CSV_DELIMITER - Char to use as a field delimiter when exporting form responses as CSV. Defaults to a comma: ,
  • FORMS_BUILDER_SEND_FROM_SUBMITTER - Boolean controlling whether emails to staff recipients are sent from the form submitter. Defaults to True

Email Templates

The django-email-extras package is used to send multipart email notifications using Django's templating system for constructing the emails, to users submitting forms, and any recipients specified when creating a form via Django's admin.

Templates for HTML and text versions of the email can be found in the templates/email_extras directory. This allows you to customize the look and feel of emails that are sent to form submitters.

Note

With django-email-extras installed, it's also possible to configure PGP encrypted emails to be send to staff members, allowing forms to be built for capturing sensitive information. Consult the django-email-extras documentation for more info.

Signals

Two signals are provided for hooking into different states of the form submission process.

  • form_invalid(sender=request, form=form) - Sent when the form is submitted with invalid data.
  • form_valid(sender=request, form=form, entry=entry) - Sent when the form is submitted with valid data.

For each signal the sender argument is the current request. Both signals receive a form argument is given which is the FormForForm instance, a ModelForm for the FormEntry model. The form_valid signal also receives a entry argument, which is the FormEntry model instance created.

Some examples of using the signals would be to monitor how users are causing validation errors with the form, or a pipeline of events to occur on successful form submissions. Suppose we wanted to store a logged in user's username against each form when submitted, given a form containing a field with the label Username with its field_type set to Hidden:

from django.dispatch import receiver
from forms_builder.forms.signals import form_valid

@receiver(form_valid)
def set_username(sender=None, form=None, entry=None, **kwargs):
    request = sender
    if request.user.is_authenticated():
        field = entry.form.fields.get(label="Username")
        field_entry, _ = entry.fields.get_or_create(field_id=field.id)
        field_entry.value = request.user.username
        field_entry.save()

Dynamic Field Defaults

As of version 0.6, you can use Django template code for default field values. For example you could enter {{ request.user.username }} and the field will be pre-populated with a user's username if they're authenticated.

 
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