Odoo 12 Development Essentials - Fourth Edition

Graph views

Graph views present charts with data aggregations. We can use bar, line, and pie charts.

Now let's add the library checkout graph view:

<record id="view_graph_checkout" model="ir.ui.view"> 
  <field name="model">library.checkout</field> 
  <field name="arch" type="xml"> 
    <graph type="bar"> 
      <field name="stage_id" /> 
      <field name="num_books" type="measure" /> 
    </graph>   </field> 
</record> 

The graph view element can have a type attribute that can be set to bar (the default), pie, or line. In the case of bar, the additional stacked="True" can be used to make it a stacked bar chart.

The graph uses two types of fields:

• type="row" is the default and sets the criteria to aggregate values
• type="measure" is used for the fields that are to be ...