[MRG] XLS file now has correct float values and user can operate with it.

Use language configuration for thounsand and decimal separator.

web_export_view/AUTHORS.txt

@@ -4,3 +4,4 @@ Authors
 Simone Orsi <simone.orsi@domsense.com> [simahawk]
 Lorenzo Battistini <lorenzo.battistini@agilebg.com>
 Stefan Rijnhart <stefan@therp.nl>
+Cristian Salamea <ovnicraft@gmail.com>

web_export_view/controllers.py

@@ -18,6 +18,10 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 ##############################################################################
+import re
+import xlwt
+from cStringIO import StringIO
+
 try:
     import json
 except ImportError:
@@ -31,6 +35,33 @@ from web.controllers.main import ExcelExport
 class ExcelExportView(ExcelExport):
     _cp_path = '/web/export/xls_view'
 
+    def from_data(self, fields, rows, separators):
+        workbook = xlwt.Workbook()
+        worksheet = workbook.add_sheet('Sheet 1')
+
+        for i, fieldname in enumerate(fields):
+            worksheet.write(0, i, fieldname)
+            worksheet.col(i).width = 8000 # around 220 pixels
+
+        style = xlwt.easyxf('align: wrap yes')
+        m =  "^[\d%s]+(\%s\d+)?$" % (separators['thousands_sep'], separators['decimal_point'])
+        for row_index, row in enumerate(rows):
+            for cell_index, cell_value in enumerate(row):
+                if isinstance(cell_value, basestring):
+                    cell_value = re.sub("\r", " ", cell_value)
+                    if re.match(m, cell_value):
+                        cell_value = float(cell_value.replace(separators['thousands_sep'],'').replace(separators['decimal_point'],'.'))
+                        style = xlwt.easyxf(num_format_str='#,##0.00')
+                if cell_value is False: cell_value = None
+                worksheet.write(row_index + 1, cell_index, cell_value, style)
+
+        fp = StringIO()
+        workbook.save(fp)
+        fp.seek(0)
+        data = fp.read()
+        fp.close()
+        return data    
+
     @openerpweb.httprequest
     def index(self, req, data, token):
         data = json.loads(data)
@@ -39,8 +70,12 @@ class ExcelExportView(ExcelExport):
         rows = data.get('rows',[])
 
         context = req.session.eval_context(req.context)
+        lang = context.get('lang', 'en_US')
+        Model = req.session.model('res.lang')
+        ids = Model.search([['code','=',lang]])
+        record = Model.read(ids, ['decimal_point','thousands_sep'])
 
-        return req.make_response(self.from_data(columns_headers, rows),
+        return req.make_response(self.from_data(columns_headers, rows, record[0]),
             headers=[('Content-Disposition', 'attachment; filename="%s"' % self.filename(model)),
                      ('Content-Type', self.content_type)],
             cookies={'fileToken': int(token)})