在树视图中禁用创建按钮，但在odoo中保留导入

tree_field = fields.One2many('related.model', 'related_field', string='Tree Field')

tree_field = fields.One2many('related.model', 'related_field', string='Tree Field', create=False)

<record id="view_model_tree" model="ir.ui.view">
    <field name="name">model.tree</field>
    <field name="model">model</field>
    <field name="arch" type="xml">
        <tree>
            <!-- 添加自定义按钮 -->
            <button name="import_action" string="导入" type="object" class="oe_highlight"/>
            <!-- 其他树视图字段 -->
        </tree>
    </field>
</record>

@api.multi
def import_action(self):
    # 导入功能的具体实现
    pass