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django-chartjs's Introduction

Django Chartjs

Django Chartjs lets you manage charts in your Django application.

Build Status

Coverage Status on master

image

image

This is compatible with Chart.js and Highcharts JS librairies.

Using a set of predefined Class Based Views you are able to get started after writing just your SQL query.

Getting Started

Install django-chartjs:

pip install django-chartjs

Add it to your INSTALLED_APPS settings:

INSTALLED_APPS = (
    '...',
    'chartjs',
)

Using it

A simple Line Chart example.

1. Create the HTML file

{% load staticfiles %}
<html>
    <head>
        <title>django-chartjs line chart demo</title>
        <!--[if lte IE 8]>
            <script src="{% static 'js/excanvas.js' %}"></script>
        <![endif]-->
    </head>
    <body>
        <h1>Some Line Charts loaded in Ajax!</h1>

        <canvas id="myChart" width="500" height="400"></canvas>

        <script type="text/javascript" src="http://code.jquery.com/jquery-1.10.0.min.js"></script>
        <script type="text/javascript" src="{% static 'js/Chart.min.js' %}"></script>
        <script type="text/javascript">
            $.get('{% url "line_chart_json" %}', function(data) {
                var ctx = $("#myChart").get(0).getContext("2d");
                new Chart(ctx).Line(data);
            });
        </script>
    </body>
</html>

2. Create the view with labels and data definition

from random import randint
from django.views.generic import TemplateView
from chartjs.views.lines import BaseLineChartView


class LineChartJSONView(BaseLineChartView):
    def get_labels(self):
        """Return 7 labels."""
        return ["January", "February", "March", "April", "May", "June", "July"]

    def get_data(self):
        """Return 3 datasets to plot."""

        return [[75, 44, 92, 11, 44, 95, 35],
                [41, 92, 18, 3, 73, 87, 92],
                [87, 21, 94, 3, 90, 13, 65]]


line_chart = TemplateView.as_view(template_name='line_chart.html')
line_chart_json = LineChartJSONView.as_view()

3. Get a Chart.js Line Chart

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It is that simple!

For other examples, don't hesitate to look at the demo project.

Also, feel free to contribute your demo!

django-chartjs's People

Contributors

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