Plugins

Opal provides a plugin mechanism to help developers write generic reusable components.

Plugins must inherit from opal.core.plugins.OpalPlugin.

OpalPlugin

OpalPlugin is a discoverable feature - it will be automatically discovered by Opal if placed in a plugin.py file within an installed Django app.

Attributes

OpalPlugin.urls

A Django urlpatterns object to add to our urls. Default is [].

OpalPlugin.javascripts

A python dictionary containing namespaced sets of javascript files to include in our application. These will be included on every page by default.

class MyPlugin(OpalPlugin):
    javascripts = {
        'opal.services': [
            'js/myplugin/awesome_service.js'
        ]
    }

OpalPlugin.apis

A python iterable of APIs to add to the Django Rest Framework APIs available.

class MyPlugin(OpalPlugin):
    apis = [
        ('ping', api.PingViewSet)
    ]

OpalPlugin.stylesheets

A python iterable of stylesheets to add to our application. These will be included on every page by default.

class MyPlugin(OpalPlugin):
    stylesheets =
        'css/myawesomestyles.css'
    ]

OpalPlugin.menuitems

A python iterable of items to add to the main menu of our application.

OpalPlugin.actions

A Python iterable of templates to include as actions - e.g. additional buttons to add to the context of a detail, list or other view. These are visible everywhere by default, so care should be taken to ensure appropriate show/hide logic is present.

Classmethods

OpalPlugin.get_urls()

Returns the Django url patterns to be registered. Defaults to simply returning the urls attribute.

OpalPlugin.get_apis()

Returns the APIs to be registered with the Django Rest Framework APIs. Defaults to simply returning the apis attribute.

OpalPlugin.directory()

Returns the path to the directory containing the file in which this plugin is defined.

OpalPlugin.get_javascripts()

Return a dictionary of namespaced javascript files as paths to them ready for staticfiles. Defaults to returning the OpalPlugin.javascripts property.

plugin.get_javascripts()
# -> {'opal.test': ['js/test/notreal.js']}

OpalPlugin.get_styles()

Return a list of the plugin's stylesheets as paths to them ready for staticfiles. Defaults to returning the contents of OpalPlugin.styles.

plugin.get_styles()
# -> ['css/app.css', ...]

OpalPlugin.angular_module_deps

When you initialise an angular application you need to register dependencies This allows you to add to the dependencies of the default opal application

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