odoo Workflows 老版本参考
Workflows
Workflows 是通过model 来描述业务逻辑之间的变化过程，Workflows are also used to track processes that evolve over time.
练习 6-1
给session 添加一个 state field ，用来帮助弄 workflow
一个 session 有3个状态，分别是 Draft（默认），Confirmed， Done
在session form中，添加一个 read-only field 用来显示 state，添加一个button 用来调整 state。
- Draft -> Confirmed
- Confirmed -> Draft
- Confirmed -> Done
- Done -> Draft
openacademy/models.py
attendees_count = fields.Integer(
string="Attendees count", compute='_get_attendees_count', store=True)
# 新增
state = fields.Selection([
('draft', "Draft"),
('confirmed', "Confirmed"),
('done', "Done"),
], default='draft')
@api.multi
def action_draft(self):
self.state = 'draft'
@api.multi
def action_confirm(self):
self.state = 'confirmed'
@api.multi
def action_done(self):
self.state = 'done'
# 结束
@api.depends('seats', 'attendee_ids')
def _taken_seats(self):
for r in self:
openacademy/views/openacademy.xml
<field name="model">openacademy.session</field>
<field name="arch" type="xml">
<form string="Session Form">
<!-- 新增 -->
<header>
<button name="action_draft" type="object"
string="Reset to draft"
states="confirmed,done"/>
<button name="action_confirm" type="object"
string="Confirm" states="draft"
class="oe_highlight"/>
<button name="action_done" type="object"
string="Mark as done" states="confirmed"
class="oe_highlight"/>
<field name="state" widget="statusbar"/>
</header>
<!-- 结束 -->
<sheet>
<group>
<group string="General">
workflows 可以与任何 Odoo object 相关联起来，而且完全的可定制化。Workflows 是用来的管理将商业闭环，还可以通过可视化的方式，修改业务之间的转化关系和各种触发条件的钩子。Workflows, activities (nodes or actions) and transitions (conditions) are declared as XML records, as usual. The tokens that navigate in workflows are called workitems.
注意： workflow 与 session 关联之后，只有新建的 session 才有 workflow instance，之前的 session 都不会有 workflow instance
练习 6-2
替换上面的 伪 workflow， 用真正的 workflow 来重写，所以 button 点击后，调用的就不是 object的method，而是 workflow的 trigger。
openacademy/__openerp__.py
'templates.xml',
'views/openacademy.xml',
'views/partner.xml',
'views/session_workflow.xml', # new line
],
# only loaded in demonstration mode
'demo': [
openacademy/models.py
('draft', "Draft"),
('confirmed', "Confirmed"),
('done', "Done"),
]) # 去掉了 default
@api.multi
def action_draft(self):
openacademy/views/openacademy.xml
<field name="arch" type="xml">
<form string="Session Form">
<header>
<!-- 3个 button 的 type 由 object 变为 workflow -->
<button name="draft" type="workflow"
string="Reset to draft"
states="confirmed,done"/>
<button name="confirm" type="workflow"
string="Confirm" states="draft"
class="oe_highlight"/>
<button name="done" type="workflow"
string="Mark as done" states="confirmed"
class="oe_highlight"/>
<field name="state" widget="statusbar"/>
openacademy/views/session_workflow.xml
<openerp>
<data>
<record model="workflow" id="wkf_session">
<field name="name">OpenAcademy sessions workflow</field>
<field name="osv">openacademy.session</field>
<field name="on_create">True</field>
</record>
<record model="workflow.activity" id="draft">
<field name="name">Draft</field>
<field name="wkf_id" ref="wkf_session"/>
<field name="flow_start" eval="True"/>
<field name="kind">function</field>
<field name="action">action_draft()</field>
</record>
<record model="workflow.activity" id="confirmed">
<field name="name">Confirmed</field>
<field name="wkf_id" ref="wkf_session"/>
<field name="kind">function</field>
<field name="action">action_confirm()</field>
</record>
<record model="workflow.activity" id="done">
<field name="name">Done</field>
<field name="wkf_id" ref="wkf_session"/>
<field name="kind">function</field>
<field name="action">action_done()</field>
</record>
<record model="workflow.transition" id="session_draft_to_confirmed">
<field name="act_from" ref="draft"/>
<field name="act_to" ref="confirmed"/>
<field name="signal">confirm</field>
</record>
<record model="workflow.transition" id="session_confirmed_to_draft">
<field name="act_from" ref="confirmed"/>
<field name="act_to" ref="draft"/>
<field name="signal">draft</field>
</record>
<record model="workflow.transition" id="session_done_to_draft">
<field name="act_from" ref="done"/>
<field name="act_to" ref="draft"/>
<field name="signal">draft</field>
</record>
<record model="workflow.transition" id="session_confirmed_to_done">
<field name="act_from" ref="confirmed"/>
<field name="act_to" ref="done"/>
<field name="signal">done</field>
</record>
</data>
</openerp>
为了检测，是否建立了 workflow ，可以到 Settings ‣ Technical ‣ Workflows ‣ Instances 查看
练习 6-3
添加一个根据条件自动触发的 workflow
openacademy/views/session_workflow.xml
<field name="act_to" ref="done"/>
<field name="signal">done</field>
</record>
<!-- 添加 -->
<record model="workflow.transition" id="session_auto_confirm_half_filled">
<field name="act_from" ref="draft"/>
<field name="act_to" ref="confirmed"/>
<field name="condition">taken_seats > 50</field>
</record>
</data>
</openerp>
练习 6-4
用 server action 代替 python methods
workflow 和 server action 都可以从用户界面，手动建立。
openacademy/views/session_workflow.xml
<field name="on_create">True</field>
</record>
<!-- 新增 -->
<record model="ir.actions.server" id="set_session_to_draft">
<field name="name">Set session to Draft</field>
<field name="model_id" ref="model_openacademy_session"/>
<field name="code">
model.search([('id', 'in', context['active_ids'])]).action_draft()
</field>
</record>
<!-- 结束 -->
<record model="workflow.activity" id="draft">
<field name="name">Draft</field>
<field name="wkf_id" ref="wkf_session"/>
<field name="flow_start" eval="True"/>
<!-- 修改 -->
<field name="kind">dummy</field>
<field name="action"></field>
<field name="action_id" ref="set_session_to_draft"/>
<!-- 结束 -->
</record>
<!-- 新增 -->
<record model="ir.actions.server" id="set_session_to_confirmed">
<field name="name">Set session to Confirmed</field>
<field name="model_id" ref="model_openacademy_session"/>
<field name="code">
model.search([('id', 'in', context['active_ids'])]).action_confirm()
</field>
</record>
<!-- 结束 -->
<record model="workflow.activity" id="confirmed">
<field name="name">Confirmed</field>
<field name="wkf_id" ref="wkf_session"/>
<!-- 修改 -->
<field name="kind">dummy</field>
<field name="action"></field>
<field name="action_id" ref="set_session_to_confirmed"/>
<!-- 结束 -->
</record>
<!-- 新增 -->
<record model="ir.actions.server" id="set_session_to_done">
<field name="name">Set session to Done</field>
<field name="model_id" ref="model_openacademy_session"/>
<field name="code">
model.search([('id', 'in', context['active_ids'])]).action_done()
</field>
</record>
<!-- 结束 -->
<record model="workflow.activity" id="done">
<field name="name">Done</field>
<field name="wkf_id" ref="wkf_session"/>
<!-- 修改 -->
<field name="kind">dummy</field>
<field name="action"></field>
<field name="action_id" ref="set_session_to_done"/>
<!-- 结束 -->
</record>
<record model="workflow.transition" id="session_draft_to_confirmed">
