django-dashing¶
django-dashing is a customisable, modular dashboard application framework for Django to visualize interesting data about your project. Inspired in the exceptionally handsome dashboard framework Dashing
Prerequisites¶
- Django 1.5.+
Key concepts¶
- Use premade widgets, or fully create your own with css, html, and javascript.
- Use the API to push data to your dashboards.
- Drag & Drop interface for re-arranging your widgets.
Installation¶
- Install latest stable version from PyPi:
$ pip install django-dashing
- Add dashing to INSTALLED_APPS of the your projects.
INSTALLED_APPS = (
...
'dashing',
)
- Include the polls URLconf in your project urls.py like this:
from dashing.utils import router
...
url(r'^dashboard/', include(router.urls)),
- Start the development server and visit http://127.0.0.1:8000/dashboard/ to view the dummy dashboard.
Getting Started¶
To create a custom dashboard you need create a dashing-config.js file in the static directory and optionally a custom dashing/dashboard.html template file.
Config File¶
You need put the dashing-config.js in the static directory (you can change the patch and name if you wrote a template file and start to create widgets for your project.
The dashing config file should start with the creation of a new dashboard var dashboard = new Dashboard(); and start to place widgets with the following syntax dashboard.addWidget(<name_of_widget>, <type_of_widget>, <options>); where name_of_widget is the name that describe the objective of the widget (should be unique) type_of_widget is a valid widget type (Clock, Graph, List, Number) and options depends of each widget.
Template File¶
You can create a dashboard.html file to specify which widgets you can use or add your custom widgets, also add stylesheets and extra scripts. You will place inside the template directory in dashing/dashboard.html
Python Widget Classes¶
Optionally this app provide an useful set of classes to return the expected data for the default widgets, you can create a widgets.py file and inherit of these classes or create your own widgets inherit from dashing.widgets.Widget.
class Widget(JSONResponseMixin, View):
def get(self, request, *args, **kwargs):
context = self.get_context()
return HttpResponse(json.dumps(context), content_type="application/json")
def render_to_response(self, context, **response_kwargs):
return self.render_to_json_response(context, **response_kwargs)
A custom widget can look like this:
class CustomWidget(NumberWidget):
title = 'My Custom Widget'
value = 25
def get_more_info(self):
more_info = 'Random additional info'
return more_info
To register the url to serve this widget you must use the register method from dashing.utils.router, then in urls.py file put
from dashing.utils import router
router.register(CustomWidget, 'custom_widget')
Now we can access to CustomWidget from ‘/dashboard/widgets/custom_widget’ if ‘/dashboard/’ is the root of our dashboard
Dashboards¶
Single Dashboard¶
To initialize a single dashboard you need create a Dashboard object and pass valid options as shown below:
var dashboard = new Dashboard(options);
Where the options are a json object with the following specifications
Options
- name (optional)
- The name of widget. (default: undefined )
- viewportWidth (optional)
- Width of viewport where expected that the dashboard was displayed. (default: $(window).width() )
- viewportHeight (optional)
- Height of viewport where expected that the dashboard was displayed. (default: $(window).height() )
- widgetMargins (optional)
- Margin between each widget. (default: [5, 5] )
- widgetBaseDimensions (optional)
- Default width and height of each widget in the dashboard. (default: [370, 340] )
Multiple Dashboards¶
To initialize a multiple dashboards you need create a DashboardSet object and pass valid options as shown below:
var dashboardSet = new DashboardSet();
DashboardSet methods
- addDashboard
To add a new Dashboard:
dashboardSet.addDashboard(name, options)
Where name is a string with the name of dashboard and options is a json object with the same format of the options of the Dashboard object.
- getDashboard
To get a Dashboard from the DashboardSet object:
dashboardSet.getDashboard(name)
Swap between dashboards
To swap between dashboards need to press the ctrl key to display the menu.
Widgets¶
To place widgets in your dashboard you need create a javascript file, where you call each widget that you need to place with the correct options, each widget provide two events that you can call in any javascript file to update the widget data or render the widget with the data that has.
For example if you create a number widget
var dashboard = new Dashboard();
...
dashboard.addWidget('example_widget', 'Number', {
getData: function () {
this.data = {
title: 'Current Valuation',
more_info: 'In billions',
updated_at: 'Last updated at 14:10',
change_rate: '64%',
value: '$35'
};
dashboard.publish('example_widget/render');
}
});
Then you can publish in any moment the events dashboard.publish('example_widget/render') to update the DOM of the widget and dashboard.publish('example_widget/getData') to get new data of the widget.
Note that in this example the getData method will be executed each 1000 milliseconds because is the default value of interval option in a Number widget.
Clock Widget¶
This widget can display an specific day an hour.
Options
- row
- Number of rows occupied by the widget. (default: 1)
- col
- Number of columns occupied by the widget. (default: 1)
- render
- Function responsible of modify the DOM elements of the widget.
- data
JSON object that represent the date and time in format
{ time: 'hh:mm:ss', date: 'Month Day DD sYYYY' }
- getData
- Function responsible to update data value, this function is executed each time interval specified in interval variable. You can rewrite this function to get data from an external source. This function should call render event to update the widget. (default: return the browser time in a valid JSON format)
- getWidget
- Return the DOM element that represent the widget.
- interval
- Actualization interval of widget data on milliseconds. (default: 500)
Graph Widget¶
This widget can display a value with an associate graph as background.
Options
- row
- Number of rows occupied by the widget. (default: 1)
- col
- Number of columns occupied by the widget. (default: 2)
- render
- Function responsible of modify the DOM elements of the widget.
- renderGraph
- Function responsible of draw the graph in the widget using Rickshaw library.
- data
JSON object that represent the date and time in format
{ data: [ {x: /x0/, y: /y0/}, {x: /x1/, y: /y1/} ... ], value: /string/ title: /string/, more_info: /string/ }
- getData
- Function responsible to update data value, this function is executed each time interval specified in interval variable. You can rewrite this function to get data from an external source. This function should call render event to update the widget. (default: empty function)
- getWidget
- Return the DOM element that represent the widget.
- interval
- Actualization interval of widget data on milliseconds. (default: 1000)
GraphWidget Class
To use import from dashing.widgets.GraphWidget.
class GraphWidget(Widget):
title = ''
more_info = ''
value = ''
data = []
def get_title(self):
return self.title
def get_more_info(self):
return self.more_info
def get_value(self):
return self.value
def get_data(self):
return self.data
def get_context(self):
return {
'title': self.get_title(),
'more_info': self.get_more_info(),
'value': self.get_value(),
'data': self.get_data(),
}
List Widget¶
This widget can display a list of elements with an associate value.
Options
- row
- Number of rows occupied by the widget. (default: 2)
- col
- Number of columns occupied by the widget. (default: 1)
- render
- Function responsible of modify the DOM elements of the widget.
- data
JSON object that represent the date and time in format
{ data: [ {/key0/: /value0/}, {/key1/: /value1/} ... ], title: /string/, more_info: /string/, updated_at: /string/ }
- getData
- Function responsible to update data value, this function is executed each time interval specified in interval variable. You can rewrite this function to get data from an external source. This function should call render event to update the widget. (default: empty function)
- getWidget
- Return the DOM element that represent the widget.
- interval
- Actualization interval of widget data on milliseconds. (default: 10000)
ListWidget Class
To use import from dashing.widgets.ListWidget.
class ListWidget(Widget):
title = ''
more_info = ''
updated_at = ''
data = []
def get_title(self):
return self.title
def get_more_info(self):
return self.more_info
def get_updated_at(self):
return self.updated_at
def get_data(self):
return self.data
def get_context(self):
return {
'title': self.get_title(),
'more_info': self.get_more_info(),
'updated_at': self.get_updated_at(),
'data': self.get_data(),
}
Number Widget¶
This widget can display a value with another interesting information.
Options
- row
- Number of rows occupied by the widget. (default: 1)
- col
- Number of columns occupied by the widget. (default: 1)
- render
- Function responsible of modify the DOM elements of the widget.
- data
JSON object that represent the date and time in format
{ value: /string/, title: /string/, change_rate: /string/, more_info: /string/, updated_at: /string/ }
- getData
- Function responsible to update data value, this function is executed each time interval specified in interval variable. You can rewrite this function to get data from an external source. This function should call render event to update the widget. (default: empty function)
- getWidget
- Return the DOM element that represent the widget.
- interval
- Actualization interval of widget data on milliseconds. (default: 1000)
NumberWidget Class
To use import from dashing.widgets.NumberWidget.
class NumberWidget(Widget):
title = ''
more_info = ''
updated_at = ''
change_rate = ''
value = ''
def get_title(self):
return self.title
def get_more_info(self):
return self.more_info
def get_updated_at(self):
return self.updated_at
def get_change_rate(self):
return self.change_rate
def get_value(self):
return self.value
def get_context(self):
return {
'title': self.get_title(),
'more_info': self.get_more_info(),
'updated_at': self.get_updated_at(),
'change_rate': self.get_change_rate(),
'value': self.get_value(),
}