[ADD] account_tax_balance: Compute tax balances based on date range

account_tax_balance/wizard/__init__.py

@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# © 2016 Lorenzo Battistini - Agile Business Group
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import open_tax_balances

account_tax_balance/wizard/open_tax_balances.py

@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+# © 2016 Lorenzo Battistini - Agile Business Group
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from openerp import models, fields, api
+
+
+class OpenTaxBalances(models.TransientModel):
+    _name = 'wizard.open.tax.balances'
+    company_id = fields.Many2one(
+        'res.company', 'Company', required=True,
+        default=lambda self: self.env.user.company_id)
+    from_date = fields.Date('From date', required=True)
+    to_date = fields.Date('To date', required=True)
+    date_range_id = fields.Many2one('date.range', 'Date range')
+    target_move = fields.Selection([
+        ('posted', 'All Posted Entries'),
+        ('all', 'All Entries'),
+    ], 'Target Moves', required=True, default='posted')
+
+    @api.onchange('date_range_id')
+    def onchange_date_range_id(self):
+        if self.date_range_id:
+            self.from_date = self.date_range_id.date_start
+            self.to_date = self.date_range_id.date_end
+        else:
+            self.from_date = self.to_date = None
+
+    @api.multi
+    def open_taxes(self):
+        self.ensure_one()
+        action = self.env.ref('account_tax_balance.action_tax_balances_tree')
+        vals = action.read()[0]
+        vals['context'] = {
+            'from_date': self.from_date,
+            'to_date': self.to_date,
+            'target_move': self.target_move,
+            'company_id': self.company_id.id,
+        }
+        return vals

account_tax_balance/wizard/open_tax_balances_view.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<openerp>
+    <data>
+        <record id="wizard_open_tax_balances" model="ir.ui.view">
+            <field name="name">wizard_open_tax_balances</field>
+            <field name="model">wizard.open.tax.balances</field>
+            <field name="arch" type="xml">
+                <form string="Open Tax Balances">
+                    <group>
+                        <field name="company_id"/>
+                        <field name="date_range_id"/>
+                        <field name="from_date"></field>
+                        <field name="to_date"></field>
+                        <field name="target_move"></field>
+                    </group>
+                    <footer>
+                        <button string="Open Taxes" name="open_taxes" type="object" class="oe_highlight"/>
+                        or
+                        <button string="Cancel" class="oe_link" special="cancel"/>
+                    </footer>
+                </form>
+            </field>
+         </record>
+
+        <record id="action_open_tax_balances" model="ir.actions.act_window">
+            <field name="name">Open Tax Balances</field>
+            <field name="res_model">wizard.open.tax.balances</field>
+            <field name="view_type">form</field>
+            <field name="view_mode">form</field>
+            <field name="view_id" ref="wizard_open_tax_balances"/>
+            <field name="target">new</field>
+        </record>
+
+        <menuitem
+            action="action_open_tax_balances"
+            id="menu_action_open_tax_balances"
+            parent="account.menu_finance_reports"
+            groups="account.group_account_user,account.group_account_manager"></menuitem>
+    </data>
+</openerp>