1 files changed, 78 insertions, 0 deletions
diff --git a/addons/account_tax_python/account_tax_python.py b/addons/account_tax_python/account_tax_python.py
new file mode 100644
index 00000000000..3ab2bba5407
--- /dev/null
+++ b/addons/account_tax_python/account_tax_python.py
@@ -0,0 +1,78 @@
+# -*- coding: utf-8 -*-
+
+from openerp import models, fields, api
+
+class AccountTaxPython(models.Model):
+    _inherit = "account.tax"
+
+    amount_type = fields.Selection(selection_add=[('code', 'Python Code')])
+
+    python_compute = fields.Text(string='Python Code', default="result = price_unit * 0.10",
+        help="Compute the amount of the tax by setting the variable 'result'.\n\n"
+            ":param base_amount: float, actual amount on which the tax is applied\n"
+            ":param price_unit: float\n"
+            ":param quantity: float\n"
+            ":param product: product.product recordset singleton or None\n"
+            ":param partner: res.partner recordset singleton or None")
+    python_applicable = fields.Text(string='Applicable Code', default="result = True",
+        help="Determine if the tax will be applied by setting the variable 'result' to True or False.\n\n"
+            ":param price_unit: float\n"
+            ":param quantity: float\n"
+            ":param product: product.product recordset singleton or None\n"
+            ":param partner: res.partner recordset singleton or None")
+
+
+    def _compute_amount(self, base_amount, price_unit, quantity=1.0, product=None, partner=None):
+        self.ensure_one()
+        if self.amount_type == 'code':
+            localdict = {'base_amount': base_amount, 'price_unit':price_unit, 'quantity': quantity, 'product':product, 'partner':partner}
+            exec self.python_compute in localdict
+            return localdict['result']
+        return super(AccountTaxPython, self)._compute_amount(base_amount, price_unit, quantity, product, partner)
+
+    @api.v8
+    def compute_all(self, price_unit, currency=None, quantity=1.0, product=None, partner=None):
+        taxes = self.env['account.tax']
+        for tax in self:
+            localdict = {'price_unit':price_unit, 'quantity': quantity, 'product':product, 'partner':partner}
+            exec tax.python_applicable in localdict
+            if localdict.get('result', False):
+                taxes += tax
+        return super(AccountTaxPython, taxes).compute_all(price_unit, currency, quantity, product, partner)
+
+    @api.v7
+    def compute_all(self, cr, uid, ids, price_unit, currency_id=None, quantity=1.0, product_id=None, partner_id=None, context=None):
+        currency = currency_id and self.pool.get('res.currency').browse(cr, uid, currency_id, context=context) or None
+        product = product_id and self.pool.get('product.product').browse(cr, uid, product_id, context=context) or None
+        partner = partner_id and self.pool.get('res.partner').browse(cr, uid, partner_id, context=context) or None
+        ids = isinstance(ids, (int, long)) and [ids] or ids
+        recs = self.browse(cr, uid, ids, context=context)
+        return recs.compute_all(price_unit, currency, quantity, product, partner)
+
+class AccountTaxTemplatePython(models.Model):
+    _inherit = 'account.tax.template'
+
+    amount_type = fields.Selection(selection_add=[('code', 'Python Code')])
+
+    python_compute = fields.Text(string='Python Code', default="result = price_unit * 0.10",
+        help="Compute the amount of the tax by setting the variable 'result'.\n\n"
+            ":param base_amount: float, actual amount on which the tax is applied\n"
+            ":param price_unit: float\n"
+            ":param quantity: float\n"
+            ":param product: product.product recordset singleton or None\n"
+            ":param partner: res.partner recordset singleton or None")
+    python_applicable = fields.Text(string='Applicable Code', default="result = True",
+        help="Determine if the tax will be applied by setting the variable 'result' to True or False.\n\n"
+            ":param price_unit: float\n"
+            ":param quantity: float\n"
+            ":param product: product.product recordset singleton or None\n"
+            ":param partner: res.partner recordset singleton or None")
+
+    def _get_tax_vals(self, company):
+        """ This method generates a dictionnary of all the values for the tax that will be created.
+        """
+        self.ensure_one()
+        res = super(AccountTaxTemplatePython, self)._get_tax_vals(company)
+        res['python_compute'] = self.python_compute
+        res['python_applicable'] = self.python_applicable
+        return res