An app to enable Tethys gizmos in your site.
Project description
Gizmos are building blocks that can be used to create beautiful interactive controls for web apps. Using gizmos, developers can add date-pickers, plots, and maps to their templates with minimal coding.
Installation
Tethys Gizmos can be installed via pip or by downloading the source. To install via pip or easy_install:
pip install django-tethys_gizmos
To install via download:
git clone https://github.com/CI-WATER/django-tethys_gizmos.git cd django-tethys_gizmos python setup.py install
Django Configuration
Add “tethys_gizmos” to your INSTALLED_APPS setting like this:
INSTALLED_APPS = ( ... 'tethys_gizmos', )Add the context processor to settings. For example:
TEMPLATE_CONTEXT_PROCESSORS = ('django.contrib.auth.context_processors.auth', 'django.core.context_processors.debug', 'django.core.context_processors.i18n', 'django.core.context_processors.media', 'django.core.context_processors.static', 'django.core.context_processors.tz', 'tethys_gizmos.context_processors.tethys_gizmos_context')Include the Tethys Gizmos URLconf to your project urls.py with the “gizmos” namespace:
url(r'^gizmos/', include('tethys_gizmos.urls', namespace='gizmos'))
4. Tethys Gizmos makes extensive use of Twitter Bootstrap and Jquery. These libraries must be included in all templates that use gizmos. Because of the prevalent use of these two libraries, we leave it to the developer to decide how to provide these dependencies. It is suggested that you include them in your “page.html” (see below) or some other base template that all pages in your website use.
5. Tethys Gizmos includes a showcase of all the available gizmos including live demos and code examples. To get this page working you will need to create a template called “page.html” in your base “templates” directory that includes blocks called “styles”, “bodytag”, “primary_content”, and “scripts”. Also include the Bootstrap and Jquery dependencies. Your “page.html” should look something like this:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
{% block styles %}
{% endblock %}
</head>
<body {% block bodytag %}{% endblock %}>
{% block primary_content %}
{% endblock %}
{% block scripts %}
{% endblock %}
</body>
</html>
Quick Start
What does “minimal coding” mean? Take a look at the following example. Let’s say you want to include a date picker in your template using a gizmo. First, create a dictionary with all the configuration options for the date picker (more on that later) in your view/controller for the template and add it to the context:
def my_view(request):
date_picker_options = {'display_text': 'Date',
'name': 'date1',
'autoclose': True,
'format': 'MM d, yyyy',
'start_date': '2/15/2014',
'start_view': 'decade',
'today_button': True,
'initial': 'February 15, 2014'}
context = {'date_picker_options': date_picker_options}
return render(request, 'path/to/my/template.html', context)
Next, open the template you intend to add the gizmo to and load the tethys_gizmos library. Be sure to do this somewhere near the top of your template–before any gizmo occurrences. This only needs to be done once for each template that uses gizmos:
{% load tethys_gizmos %}
Now, use the gizmo tag to insert the date picker anywhere in your template. Pass the name of the gizmo and the options dictionary that you passed to the template from your view as arguments:
{% gizmo date_picker date_picker_options %}
Finally, at the end of your template–after all of the gizmo tags–insert the gizmo_dependencies tag. This only needs to be done once for each template that uses gizmos.
{% gizmo_dependencies %}
All together your template may look something like this:
{% load tethys_gizmos %}
<DOCTYPE html>
<html>
<head>
...
</head>
<body>
...
{% gizmo date_picker date_picker_options %}
...
{% gizmo_dependencies %}
</body>
</html>
How it Works
Gizmos are composed of HTML, JavaScript, and CSS. When the template is rendered, each of the gizmo tags are replaced by the HTML that is needed to render the gizmo. All gizmos accept a Python dictionary with options for configuring the gizmo. The options for each gizmo are documented on this page.
The JavaScript and CSS dependencies are loaded into the template at the location of the gizmo_dependencies tag. Note that the gizmo_dependencies tag must be called after all of the gizmo tags otherwise some of the dependencies may not be loaded properly.
Optionally, the gizmo_dependencies tag can be called with either js or css to load only the JavaScript or only the CSS dependencies, respectively. The rule that this tag must be called after all gizmo tags still applies. The gizmo_dependencies must be called twice (once for each option) when this feature is used.
{% gizmo_dependencies js %}
{% gizmo_dependencies css %}
The tethys_gizmos library must be loaded at the top of the template to provide the gizmo and gizmo_dependencies template tags.
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