[IMP] condominium: add automation to compute usage of meter readings

Before this commit, the usage of meter readings needs to be inserted
manually. After this commit, the usage is computed on all meter readings
related to the current property.

closes #337

Signed-off-by: Vallaeys Valentin (vava) <[email protected]>

Author: vava-odoo

condominium/__manifest__.py

@@ -25,9 +25,10 @@
         'data/res_config_settings.xml',
         'data/ir_attachment_pre.xml',
         'data/ir_model.xml',
-        'data/ir_actions_server.xml',
         'data/account_analytic_plan.xml',
         'data/ir_model_fields.xml',
+        'data/base_automation.xml',
+        'data/ir_actions_server.xml',
         'data/ir_filters.xml',
         'data/ir_default.xml',
         'data/meter_view.xml',

condominium/data/base_automation.xml

@@ -0,0 +1,9 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<odoo>
+    <record id="automation_set_usage_meter_reading" model="base.automation">
+        <field name="name">Set Usage in Meter Readings</field>
+        <field name="model_id" ref="model_meter_reading"/>
+        <field name="trigger">on_create_or_write</field>
+        <field name="trigger_field_ids" eval="[(6, 0, [ref('field_meter_reading_date'), ref('field_meter_reading_quantity'), ref('field_meter_reading_meter_id')])]"/>
+    </record>
+</odoo>

condominium/data/ir_actions_server.xml

@@ -89,4 +89,23 @@ for aml in record.invoice_line_ids:
 records.action_confirm()
 ]]></field>
     </record>
+    <record id="action_server_set_usage_meter_reading" model="ir.actions.server" >
+        <field name="name">Meter Reading</field>
+        <field name="model_id" ref="model_meter_reading"/>
+        <field name="state">code</field>
+        <field name="base_automation_id" ref="automation_set_usage_meter_reading"/>
+        <field name="code"><![CDATA[
+mrs = env['x_meter_reading'].search([
+    ('id', 'in', record.x_account_analytic_account_id.x_property_meter_reading_ids.ids),
+    ('x_meter_id', '=', record.x_meter_id.id)], order='x_date')
+previous_mr = False
+for mr in mrs:
+    if previous_mr:
+        mr['x_usage'] = mr['x_quantity'] - previous_mr['x_quantity']
+    else :
+        mr['x_usage'] = 0
+    previous_mr = mr
+]]>
+        </field>
+    </record>
 </odoo>