Merge pull request #131 from ArtemSerga/3

#3 - Add SQAlchemy specific column_type_formatter

flask_admin/contrib/mongoengine/typefmt.py

 from mongoengine.base import BaseList
-
 from flask.ext.admin.model.typefmt import DEFAULT_FORMATTERS
 
 
-def mongoengine_list_formatter(values):
+def list_formatter(values):
     """
         Return string with comma separated values
 
@@ -13,7 +12,7 @@ def mongoengine_list_formatter(values):
     return u', '.join(unicode(v) for v in values)
 
 
-MONGOENGINE_FORMATTERS = dict(DEFAULT_FORMATTERS)
-MONGOENGINE_FORMATTERS.update({
-        BaseList: mongoengine_list_formatter
-    })
+DEFAULT_FORMATTERS = DEFAULT_FORMATTERS.copy()
+DEFAULT_FORMATTERS.update({
+    BaseList: list_formatter
+})

flask_admin/contrib/mongoengine/view.py

@@ -12,7 +12,7 @@ from flask.ext.admin.actions import action
 from flask.ext.admin.form import BaseForm
 from .filters import FilterConverter, BaseMongoEngineFilter
 from .form import model_form, CustomModelConverter
-from .typefmt import MONGOENGINE_FORMATTERS
+from .typefmt import DEFAULT_FORMATTERS
 from .tools import parse_like_term
 
 
@@ -76,7 +76,7 @@ class ModelView(BaseModelView):
         Override this attribute to use non-default converter.
     """
 
-    column_type_formatters = MONGOENGINE_FORMATTERS
+    column_type_formatters = DEFAULT_FORMATTERS
     """
         Customized type formatters for MongoEngine backend
     """

flask_admin/contrib/sqlamodel/typefmt.py

+from flask.ext.admin.model.typefmt import DEFAULT_FORMATTERS, list_formatter
+from sqlalchemy.orm.collections import InstrumentedList
+
+
+DEFAULT_FORMATTERS = DEFAULT_FORMATTERS.copy()
+DEFAULT_FORMATTERS.update({
+    InstrumentedList: list_formatter
+})

flask_admin/contrib/sqlamodel/view.py

@@ -13,6 +13,7 @@ from flask.ext.admin.model import BaseModelView
 from flask.ext.admin.actions import action
 
 from flask.ext.admin.contrib.sqlamodel import form, filters, tools
+from .typefmt import DEFAULT_FORMATTERS
 
 
 class ModelView(BaseModelView):
@@ -215,6 +216,8 @@ class ModelView(BaseModelView):
                 column_labels = {'models': 'Hello'}
     """
 
+    column_type_formatters = DEFAULT_FORMATTERS
+
     def __init__(self, model, session,
                  name=None, category=None, endpoint=None, url=None):
         """