diff -r 058bb3dc685f -r 0b59724cb3f2 cubicweb/web/views/csvexport.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/web/views/csvexport.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,107 @@
+# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+"""csv export views"""
+
+__docformat__ = "restructuredtext en"
+from cubicweb import _
+
+from six import PY2
+from six.moves import range
+
+from cubicweb.schema import display_name
+from cubicweb.predicates import any_rset, empty_rset
+from cubicweb.uilib import UnicodeCSVWriter
+from cubicweb.view import EntityView, AnyRsetView
+
+class CSVMixIn(object):
+    """mixin class for CSV views"""
+    templatable = False
+    content_type = "text/comma-separated-values"
+    binary = PY2 # python csv module is unicode aware in py3k
+    csv_params = {'dialect': 'excel',
+                  'quotechar': '"',
+                  'delimiter': ';',
+                  'lineterminator': '\n'}
+
+    def set_request_content_type(self):
+        """overriden to set a .csv filename"""
+        self._cw.set_content_type(self.content_type, filename='cubicwebexport.csv')
+
+    def csvwriter(self, **kwargs):
+        params = self.csv_params.copy()
+        params.update(kwargs)
+        return UnicodeCSVWriter(self.w, self._cw.encoding, **params)
+
+
+class CSVRsetView(CSVMixIn, AnyRsetView):
+    """dumps raw result set in CSV"""
+    __regid__ = 'csvexport'
+    __select__ = any_rset()
+    title = _('csv export')
+
+    def call(self):
+        writer = self.csvwriter()
+        writer.writerow(self.columns_labels())
+        rset, descr = self.cw_rset, self.cw_rset.description
+        eschema = self._cw.vreg.schema.eschema
+        for rowindex, row in enumerate(rset):
+            csvrow = []
+            for colindex, val in enumerate(row):
+                etype = descr[rowindex][colindex]
+                if val is not None and not eschema(etype).final:
+                    # csvrow.append(val) # val is eid in that case
+                    content = self._cw.view('textincontext', rset,
+                                            row=rowindex, col=colindex)
+                else:
+                    content = self._cw.view('final', rset,
+                                            format='text/plain',
+                                            row=rowindex, col=colindex)
+                csvrow.append(content)
+            writer.writerow(csvrow)
+
+
+class CSVEntityView(CSVMixIn, EntityView):
+    """dumps rset's entities (with full set of attributes) in CSV
+
+    the generated CSV file will have a table per entity type found in the
+    resultset. ('table' here only means empty lines separation between table
+    contents)
+    """
+    __regid__ = 'ecsvexport'
+    __select__ = EntityView.__select__ | empty_rset()
+    title = _('csv export (entities)')
+
+    def call(self):
+        req = self._cw
+        rows_by_type = {}
+        writer = self.csvwriter()
+        rowdef_by_type = {}
+        for index in range(len(self.cw_rset)):
+            entity = self.cw_rset.complete_entity(index)
+            if entity.e_schema not in rows_by_type:
+                rowdef_by_type[entity.e_schema] = [rs for rs, at in entity.e_schema.attribute_definitions()
+                                                   if at != 'Bytes']
+                rows_by_type[entity.e_schema] = [[display_name(req, rschema.type)
+                                                  for rschema in rowdef_by_type[entity.e_schema]]]
+            rows = rows_by_type[entity.e_schema]
+            rows.append([entity.printable_value(rs.type, format='text/plain')
+                         for rs in rowdef_by_type[entity.e_schema]])
+        for rows in rows_by_type.values():
+            writer.writerows(rows)
+            # use two empty lines as separator
+            writer.writerows([[], []])