<?xml version="1.0"  encoding="UTF-8"?>
<templates xml:space="preserve">
   <t t-name="HelloJS">
      <div>Display HelloJS</div>
   </t>
</templates>

odoo.define('hello.js', function (require) {
    "use strict";

    var Widget = require('web.Widget');
    var core = require('web.core');
    var utils = require('web.utils');
    var AbstractAction = require('web.AbstractAction');

    var HomePage = AbstractAction.extend({
        template: "HelloJS",

        init: function (parent) {
            this._super(parent);
            console.log("Hello JS, I'm inside of init.");
        },

        start: function () {
            console.log("Hello JS, I'm inside of start.");
        },
    });

    core.action_registry.add('HelloJS_tag', HomePage);

    return HomePage;
});

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
    <data>

        <template id="assets_backend" name="petstore"
                  inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <script type="text/javascript"
                        src="demo_client_action/static/src/js/client_action.js">
                </script>
            </xpath>
        </template>

        <record id="hellojs_id" model="ir.actions.client">
            <field name="name">HelloJS</field>
            <field name="tag">HelloJS_tag</field>
        </record>

        <menuitem id="hellojs_menu"
                  name="HelloJS"
                  action="hellojs_id"/>
    </data>
</odoo>

'qweb': [
    'static/src/xml/client_action_template.xml'
],
'data': [
    'views/client_action.xml'
],

#models/models.py

from odoo import models, fields, api
class IrSequence(models.Model):
    _inherit = 'ir.sequence'

    range_type = fields.Selection(selection=[('day','Day'),('week','Week'),('month','Month')],
                                  string='范围类型')
    range_from = fields.Date(string='范围开始日期')
    range_to = fields.Date(string='范围结束日期')

<!-- views/views.xml -->
<odoo>
  <data>
    <record model="ir.ui.view" id="sequence_view_inherit">
      <field name="name">Sequences Inherit</field>
      <field name="model">ir.sequence</field>
      <field name="inherit_id" ref="base.sequence_view"/>
      <field name="arch" type="xml">
        <field name="use_date_range" position="after">
          <field name="range_type" attrs="{'invisible': [('use_date_range', '=', False)]}"/>
          <button name="create_range" type="object" string="创建日期范围" class="oe_edit_only oe_highlight" attrs="{'invisible': [('use_date_range', '=', False)]}"/>
        </field>
        <field name="number_next_actual" position="after">
          <field name="range_from" attrs="{'invisible': [('use_date_range', '=', False)]}"/>
          <field name="range_to" attrs="{'invisible': [('use_date_range', '=', False)]}"/>
        </field>
      </field>
    </record>
  </data>
</odoo>

#models/models.py

import datetime, calendar
from odoo.exceptions import UserError

#在class IrSequence中添加函数
    def get_date_range_list(self, start_date, end_date, flags='day'):
        result = []
        result.append(start_date)
        if flags == 'day':
            for n in range(int((end_date - start_date).days - 1)):
                compute_date = start_date + datetime.timedelta(days=n + 1)
                result.append(compute_date)
        elif flags == 'week':
            for n in range(int((end_date - start_date).days - 1)):
                compute_date = start_date + datetime.timedelta(days=n + 1)
                if compute_date.weekday() != calendar.MONDAY:
                    continue
                    result.append(compute_date)
        elif flags == 'month':
            for n in range(int((end_date - start_date).days - 1)):
                compute_date = start_date + datetime.timedelta(days=n + 1)
                if compute_date.day != 1:
                    continue
                result.append(compute_date)
        result.append(end_date)
        return result

    @api.multi
    def create_range(self, values):
        self.ensure_one()
        if not self.range_type or not self.range_from or not self.range_to:
            raise UserError('请填写必要的参数（范围类型/范围开始日期/范围结束日期）')
        if self.range_from > self.range_to:
            raise UserError('范围开始时间不能大于结束时间')
        self.date_range_ids.unlink()
        date_range = self.get_date_range_list(self.range_from, self.range_to, self.range_type)
        print(date_range)
        date_range_pair = list(dict(zip(date_range[:-1], date_range[1:])).items())

        for date_from ,date_to  in date_range_pair:
            values = {'number_next_actual': 1, 'date_from':date_from.strftime('%Y-%m-%d'), 'date_to':date_to.strftime('%Y-%m-%d'), 'sequence_id': self.id}
            self.date_range_ids.create(values)