Customize a field¶
Subclass an existing field component¶
Let’s take an example where we want to extends the BooleanField
to create a boolean field
displaying „Late!“ in red whenever the checkbox is checked.
Create a new widget component extending the desired field component.
/** @odoo-module */ import { registry } from "@web/core/registry"; import { BooleanField } from "@web/views/fields/boolean/boolean_field"; import { Component, xml } from "@odoo/owl"; class LateOrderBooleanField extends BooleanField {} LateOrderBooleanField.template = "my_module.LateOrderBooleanField";
Create the field template.
The component uses a new template with the name
my_module.LateOrderBooleanField
. Create it by inheriting the current template of theBooleanField
.<?xml version="1.0" encoding="UTF-8" ?> <templates xml:space="preserve"> <t t-name="my_module.LateOrderBooleanField" t-inherit="web.BooleanField" owl="1"> <xpath expr="//CheckBox" position="after"> <span t-if="props.value" class="text-danger"> Late! </span> </xpath> </t> </templates>
Register the component to the fields registry.
registry.category("fields").add("late_boolean", LateOrderBooleanField);
Add the widget in the view arch as an attribute of the field.
<field name="somefield" widget="late_boolean"/>
Create a new field component¶
Assume that we want to create a field that displays a simple text in red.
Create a new Owl component representing our new field
/** @odoo-module */ import { standardFieldProps } from "@web/views/fields/standard_field_props"; import { Component, xml } from "@odoo/owl"; import { registry } from "@web/core/registry"; export class MyTextField extends Component { /** * @param {boolean} newValue */ onChange(newValue) { this.props.update(newValue); } } MyTextField.template = xml` <input t-att-id="props.id" class="text-danger" t-att-value="props.value" onChange.bind="onChange" /> `; MyTextField.props = { ...standardFieldProps, }; MyTextField.supportedTypes = ["char"];
The imported
standardFieldProps
contains the standard props passed by theView
such as theupdate
function to update the value, thetype
of the field in the model, thereadonly
boolean, and others.In the same file, register the component to the fields registry.
registry.category("fields").add("my_text_field", MyTextField);
This maps the widget name in the arch to its actual component.
Add the widget in the view arch as an attribute of the field.
<field name="somefield" widget="my_text_field"/>