首先建立一個demo

檔案結構如下：

其中models/models.py:

class workflow_demo(models.Model):
    _name = 'workflow_demo.workflow_demo'

    WORKFLOW_STATE_SELECTION = [
        ('init', '初始'),
        ('start', '開始'),
        ('confirm', '確認'),
        ('complete', '完成'),
    ]

    name = fields.Char(string="姓名"
 
)
    state = fields.Selection(WORKFLOW_STATE_SELECTION, default='init', string="狀態", readonly=True)

    # 注意使用新版本定義方法是，需要新增裝飾器@api.one/@api.multi
    # 將state 置於開始狀態
    @api.one
    def do_start(self):
        print "------------self.state = 'start'"
        self.state = 'start'
        return True
 


    # 將state 置於確認狀態
    @api.one
    def do_confirm(self):
        print "------------self.state = 'confirm'"
        self.state = 'confirm'
        return True

    # 將state 置於完成狀態
    @api.one
    def do_complete(self):
        print "------------self.state = 'complete'"
        self.state = 'complete'
 

        return True

views建立 (workflow_view.xml)

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
    <data>
        <!-- form 檢視-->
        <record id="workflow_demo_form_view" model="ir.ui.view">
            <field name="name">Workflow</field>
            <field name="type">form</field>
            <field name="model">workflow_demo.workflow_demo</field>
            <field name="arch" type="xml">
                <form string="Workflow單">
                    <!-- workflow 宣告-->
                    <!-- 新增header標籤用來顯示workflow中的按鈕-->
                    <header>
                        <!-- 首先指明button的type為workflow型別 -->
                        <!-- name 對應於workflow.transition中的signal-->
                        <!-- states 屬性用來控制button顯示隱藏，例如states="init"，當state屬性為init時，這個button顯示，否則不顯示 -->
                        <button name="workflow_start" states="init" string="開始" type="workflow" class="oe_highlight"/>
                        <button name="workflow_confirm" states="start" string="確認" type="workflow" class="oe_highlight"/>
                        <button name="workflow_end" states="confirm" string="完成" type="workflow" class="oe_highlight"/>
                        <!-- 右上角 進度顯示。注意在此處已經使用的state屬性，所以在接下來的tree標籤裡面就不能再次宣告<field name="state"/>瞭如果再次宣告此處的進度顯示便會失去作用 -->
                        <field name="state" widget="statusbar" statusbar_visible="start,confirm,complete"/>
                    </header>
                    <sheet>
                        <group col="4">
                            <field name="name"/>
                        </group>
                    </sheet>
                </form>
            </field>
        </record>
        <!-- tree(list)檢視 -->
        <record id="workflow_demo_tree_view" model="ir.ui.view">
            <field name="name">workflow_demo</field>
            <field name="type">tree</field>
            <field name="model">workflow_demo.workflow_demo</field>
            <field name="arch" type="xml">
                <tree string="Workflow">
                    <field name="name"/>
                </tree>
            </field>
        </record>

        <record id="workflow_demo_action" model="ir.actions.act_window">
            <field name="name">Workflow</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">workflow_demo.workflow_demo</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
            <field name="help" type="html">
                <p class="oe_view_nocontent_create">建立Workflow單</p>
            </field>
        </record>

        <!-- 選單 -->
        <menuitem id="workflow_demo_main_menu" name="Workflow演示"/>
        <menuitem id="workflow_demo_sub_menu" name="Workflow演示" parent="workflow_demo_main_menu"/>
        <menuitem id="workflow_demo_item_menu" name="Workflow" parent="workflow_demo_sub_menu"
                  action="workflow_demo_action" sequence="1"/>
    </data>
</odoo>

建立workflow_demo.xml

<?xml version="1.0" encoding="UTF-8"?>
<odoo>
    <data>
        <!-- Workflow 工作流 -->
        <!-- https://www.odoo.com/documentation/8.0/reference/workflows.html -->
        <!-- 設定record的model為系統自帶的 “workflow” -->
        <record model="workflow" id="workflow_demo">
            <field name="name">workflow_demo</field>
            <!-- 關聯的model -->
            <field name="osv">workflow_demo.workflow_demo</field>
            <!-- 是否主動被例項化 -->
            <field name="on_create">True</field>
        </record>

        <!-- workflow.activity 用來指定要呼叫的model裡的方法，一般用來更改state狀態-->
        <record model="workflow.activity" id="activity_one">
            <!-- wkf_id 這個activity對應於哪個workflow,這裡對應於上面宣告的workflow-->
            <field name="wkf_id" ref="workflow_demo"/>
            <field name="name">workflow.demo.activity.one</field>
            <!-- dummy 型別用來指定這個activity 是workflow的開始還是結束-->
            <field name="kind">dummy</field>
            <!-- 開始是flow_start  結束是flow_end-->
            <field name="flow_start">True</field>
        </record>

        <record model="workflow.activity" id="activity_two">
            <field name="wkf_id" ref="workflow_demo"/>
            <field name="name">workflow.demo.activity.two</field>
            <!-- function 表示要執行model中的方法-->
            <field name="kind">function</field>
            <!-- 對應model中的方法-->
            <field name="action">do_start()</field>
        </record>

        <record model="workflow.activity" id="activity_three">
            <field name="wkf_id" ref="workflow_demo"/>
            <field name="name">workflow.demo.activity.three</field>
            <field name="kind">function</field>
            <field name="action">do_confirm()</field>
        </record>

        <record model="workflow.activity" id="activity_four">
            <field name="wkf_id" ref="workflow_demo"/>
            <field name="name">workflow.demo.activity.four</field>
            <field name="kind">function</field>
            <field name="action">do_complete()</field>
        </record>

        <record model="workflow.activity" id="activity_five">
            <field name="wkf_id" ref="workflow_demo"/>
            <field name="name">workflow.temp.activity.five</field>
            <field name="kind">dummy</field>
            <field name="flow_end">True</field>
        </record>

        <!-- 相當於一個轉換器，用來接受button傳來的訊號，呼叫相關的activity-->
        <record model="workflow.transition" id="transition_one">
            <!-- 表示上一個執行的activity，與上面宣告的activity對應-->
            <field name="act_from" ref="activity_one"/>
            <!-- 表示上一個將要執行的activity-->
            <field name="act_to" ref="activity_two"/>
            <!-- 用來做一個嚴重，當滿足條件是才能執行，可省略-->
            <field name="condition">state == 'init'</field>
            <!-- 接收的訊號 -->
            <field name="signal">workflow_start</field>
        </record>

        <record model="workflow.transition" id="transition_two">
            <field name="act_from" ref="activity_two"/>
            <field name="act_to" ref="activity_three"/>
            <field name="condition">state == 'start'</field>
            <field name="signal">workflow_confirm</field>
        </record>

        <record model="workflow.transition" id="transition_three">
            <field name="act_from" ref="activity_three"/>
            <field name="act_to" ref="activity_four"/>
            <field name="condition">state == 'confirm'</field>
            <field name="signal">workflow_end</field>
        </record>

    </data>
</odoo>

載入到_manifest_.py

    # always loaded
    'data': [
        # 'security/ir.model.access.csv',
        'views/views.xml',
        'views/templates.xml',
        'views/workflow_view.xml',
        'views/workflow_demo.xml',
    ],

測試
安裝模組並進行測試

可以看到控制檯輸出

workflow 該功能的開發要注意，workflow、workflow_activity、workflow_transition三者的關係
Odoo 相比較於現在的workflow宣告方式，還有另外一種簡單的方式，這種方式要在後面的文章介紹。