Odoo视图继承注意的点

授权继承的视图继承

模型继承时，使用授权继承方式，也称代理继承，即应用这样的代码：

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book_id = fields.Many2one('training.book', string="书籍", delegate=True)
或
_inherits = {'training.book': 'book_id'}

在写Form视图继承时，容易忽略的一点是在代码中加入一句：

1	<field name="mode">primary</field>

这样在Form视图中才可以正常显示。
官方解释：

View matching
- if a view is requested by (model, type), the view with the right model and type, mode=primary and the lowest priority is matched
- when a view is requested by id, if its mode is not primary its closest parent with mode primary is matched

视图继承中position='move’的用法

直接贴代码：

<record id="view_training_book_copy_form" model="ir.ui.view">
    <field name="name">training.book.copy.form</field>
    <field name="model">training.book.copy</field>
    <field name="mode">primary</field>
    <field name="inherit_id" ref="view_training_book_form"/>
    <field name="arch" type="xml">
        <xpath expr="//field[@name='author']" position="before">
            <field name="book_id"/>
            <field name="name"/>
            <field name="reference"/>
            <field name="book_rented"/>
        </xpath>
        <xpath expr="//field[@name='ISBN']" position="after">
            <field name="year" position="move"/>
        </xpath>
    </field>
</record>

year字段定义在view_training_book_form视图中，通过position='move'可以将移动到ISBN字段后面，即可以自定义位置。
官方解释：
the position move can be used as a direct child of a spec with a inside, replace, after or before position attribute to move a node.

<xpath expr="//@target" position="after">
    <xpath expr="//@node" position="move"/>
</xpath>

<field name="target_field" position="after">
    <field name="my_field" position="move"/>
</field>

授权继承的视图继承

视图继承中position='move’的用法

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