[schema] Add array type

ccplugin.py

+
+
+from yams import register_base_type
+register_base_type('IntArray')
+register_base_type('FloatArray')
+# Add a converter for Geometry
+from logilab.database.sqlgen import SQLExpression
+def convert_array(values):
+    return SQLExpression('ARRAY[%s]' % ', '.join([str(x) for x in values]))
+# Add the datatype to the helper mapping
+from logilab.database import get_db_helper
+# Add the datatype to the helper mapping
+helper = get_db_helper('postgres')
+typemap = helper.TYPE_MAPPING
+typemap['IntArray'] = 'integer[]'
+typemap['FloatArray'] = 'double[]'
+# Add the converter function to the known SQL_CONVERTERS
+helper.TYPE_CONVERTERS['IntArray'] = convert_array
+helper.TYPE_CONVERTERS['FloatArray'] = convert_array

schema.py

@@ -15,4 +15,7 @@
 # You should have received a copy of the GNU Lesser General Public License along
 # with this program. If not, see <http://www.gnu.org/licenses/>.
 
-"""cubicweb-array schema"""
+"""cubicweb-postgres-array schema"""
+from yams.buildobjs import _make_type
+IntArray = _make_type('IntArray')
+FloatArray = _make_type('FloatArray')