web/web_widget_bokeh_chart

======================
Web Widget Bokeh Chart
======================

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This module add the possibility to insert Bokeh charts into Odoo standard views.

.. image:: https://raw.githubusercontent.com/OCA/web/16.0/web_widget_bokeh_chart/static/description/example.png
   :alt: Bokeh Chart inserted into an Odoo view
   :width: 600 px

`Bokeh <https://bokeh.pydata.org>`__ is a Python interactive visualization
library that targets modern web browsers for presentation. Its goal is to
provide elegant, concise construction of basic exploratory and advanced
custom graphics in the style of D3.js, but also deliver this capability with
high-performance interactivity over very large or streaming datasets. Bokeh
can help anyone who would like to quickly and easily create interactive
plots, dashboards, and data applications.

If you want to see some samples of bokeh's capabilities follow this `link
<https://bokeh.pydata.org/en/latest/docs/gallery.html>`_.

**Table of contents**

.. contents::
   :local:

Installation
============

You need to install the python bokeh library::

    pip3 install bokeh==3.1.1

Usage
=====

To insert a Bokeh chart in a view proceed as follows:

Using a Char field
~~~~~~~~~~~~~~~~~~

#. Declare a text computed field like this::

    bokeh_chart = fields.Text(
        string='Bokeh Chart',
        compute='_compute_bokeh_chart',
    )

#. At the top of the module add the following imports::

    from bokeh.plotting import figure
    from bokeh.embed import components
    import json

#. In its computed method do::

    def _compute_bokeh_chart(self):
        for rec in self:
            # Design your bokeh figure:
            p = figure()
            line = p.line([0, 2], [1, 8], line_width=5)
            # (...)
            # fill the record field with both markup and the script of a chart.
            script, div = components(p, wrap_script=False)
            rec.bokeh_chart = json.dumps({"div": div, "script": script})

#. In the view, add something like this wherever you want to display your
   bokeh chart::

    <div>
        <field name="bokeh_chart" widget="bokeh_chart" nolabel="1"/>
    </div>


Using a Json field
~~~~~~~~~~~~~~~~~~

#. Declare a json computed field like this::

    bokeh_chart = fields.Json(
        string='Bokeh Chart',
        compute='_compute_bokeh_chart',
    )

#. At the top of the module add the following imports::

    from bokeh.plotting import figure
    from bokeh.embed import components

#. In its computed method do::

    def _compute_bokeh_chart(self):
        for rec in self:
            # Design your bokeh figure:
            p = figure()
            line = p.line([0, 2], [1, 8], line_width=5)
            # (...)
            # fill the record field with both markup and the script of a chart.
            script, div = components(p, wrap_script=False)
            rec.bokeh_chart = {"div": div, "script": script}

#. In the view, add something like this wherever you want to display your
   bokeh chart::

    <div>
        <field name="bokeh_chart" widget="bokeh_chart_json

Known issues / Roadmap
======================

#. On 17, we could remove the char field and only use the Json Field

Bug Tracker
===========

Bugs are tracked on `GitHub Issues <https://github.com/OCA/web/issues>`_.
In case of trouble, please check there if your issue has already been reported.
If you spotted it first, help us to smash it by providing a detailed and welcomed
`feedback <https://github.com/OCA/web/issues/new?body=module:%20web_widget_bokeh_chart%0Aversion:%2016.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.

Do not contact contributors directly about support or help with technical issues.

Credits
=======

Authors
~~~~~~~

* ForgeFlow
* Creu Blanca

Contributors
~~~~~~~~~~~~

* Jordi Ballester Alomar <jordi.ballester@forgeflow.com>
* Lois Rilo Antelo <lois.rilo@forgeflow.com>
* Artem Kostyuk <a.kostyuk@mobilunity.com>
* Christopher Ormaza <chris.ormaza@forgeflow.com>
* Enric Tobella <etobella@creublanca.es>
* Oriol Miranda Garrido <oriol.miranda@forgeflow.com>
* Bernat Puig Font <bernat.puig@forgeflow.com>

Other credits
~~~~~~~~~~~~~

* This module uses the library `Bokeh <https://github.com/bokeh/bokeh>`__
  which is under the open-source BSD 3-clause "New" or "Revised" License.
  Copyright (c) 2012, Anaconda, Inc.
* Odoo Community Association (OCA)

Maintainers
~~~~~~~~~~~

This module is maintained by the OCA.

.. image:: https://odoo-community.org/logo.png
   :alt: Odoo Community Association
   :target: https://odoo-community.org

OCA, or the Odoo Community Association, is a nonprofit organization whose
mission is to support the collaborative development of Odoo features and
promote its widespread use.

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Current `maintainers <https://odoo-community.org/page/maintainer-role>`__:

|maintainer-LoisRForgeFlow| |maintainer-ChrisOForgeFlow| 

This module is part of the `OCA/web <https://github.com/OCA/web/tree/16.0/web_widget_bokeh_chart>`_ project on GitHub.

You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.