allow easier overriding of editable list view

flask_admin/contrib/mongoengine/view.py

@@ -399,17 +399,26 @@ class ModelView(BaseModelView):
 
         return form_class
 
-    def scaffold_list_form(self):
+    def scaffold_list_form(self, CustomFieldList, validators=None):
         """
             Create form for the `index_view` using only the columns from
             `self.column_editable_list`.
+
+            :param validators:
+                `form_args` dict with only validators
+                {'name': {'validators': [required()]}}
+            :param CustomFieldList:
+                A WTForm FieldList class. By default, `ListEditableFieldList`.
         """
         form_class = get_form(self.model,
                               self.model_form_converter(self),
                               base_class=self.form_base_class,
-                              only=self.column_editable_list)
+                              only=self.column_editable_list,
+                              field_args=validators)
 
-        return wrap_fields_in_fieldlist(self.form_base_class, form_class)
+        return wrap_fields_in_fieldlist(self.form_base_class,
+                                        form_class,
+                                        CustomFieldList)
 
     # AJAX foreignkey support
     def _create_ajax_loader(self, name, opts):

flask_admin/contrib/peewee/view.py

@@ -238,16 +238,25 @@ class ModelView(BaseModelView):
 
         return form_class
 
-    def scaffold_list_form(self):
+    def scaffold_list_form(self, CustomFieldList, validators=None):
         """
             Create form for the `index_view` using only the columns from
             `self.column_editable_list`.
+
+            :param validators:
+                `form_args` dict with only validators
+                {'name': {'validators': [required()]}}
+            :param CustomFieldList:
+                A WTForm FieldList class. By default, `ListEditableFieldList`.
         """
         form_class = get_form(self.model, self.model_form_converter(self),
                               base_class=self.form_base_class,
-                              only=self.column_editable_list)
+                              only=self.column_editable_list,
+                              field_args=validators)
 
-        return wrap_fields_in_fieldlist(self.form_base_class, form_class)
+        return wrap_fields_in_fieldlist(self.form_base_class,
+                                        form_class,
+                                        CustomFieldList)
 
     def scaffold_inline_form_models(self, form_class):
         converter = self.model_form_converter(self)

flask_admin/contrib/sqla/view.py

@@ -612,17 +612,26 @@ class ModelView(BaseModelView):
 
         return form_class
 
-    def scaffold_list_form(self):
+    def scaffold_list_form(self, CustomFieldList, validators=None):
         """
             Create form for the `index_view` using only the columns from
             `self.column_editable_list`.
+
+            :param validators:
+                `form_args` dict with only validators
+                {'name': {'validators': [required()]}}
+            :param CustomFieldList:
+                A WTForm FieldList class. By default, `ListEditableFieldList`.
         """
         converter = self.model_form_converter(self.session, self)
         form_class = form.get_form(self.model, converter,
                                    base_class=self.form_base_class,
-                                   only=self.column_editable_list)
+                                   only=self.column_editable_list,
+                                   field_args=validators)
 
-        return wrap_fields_in_fieldlist(self.form_base_class, form_class)
+        return wrap_fields_in_fieldlist(self.form_base_class,
+                                        form_class,
+                                        CustomFieldList)
 
     def scaffold_inline_form_models(self, form_class):
         """

flask_admin/model/base.py

@@ -20,6 +20,7 @@ from flask.ext.admin._backwards import ObsoleteAttr
 from flask.ext.admin._compat import iteritems, OrderedDict, as_unicode
 from .helpers import prettify_name, get_mdict_item_or_list
 from .ajax import AjaxModelLoader
+from .fields import ListEditableFieldList
 
 
 # Used to generate filter query string name
@@ -596,7 +597,7 @@ class BaseModelView(BaseView, ActionsMixin):
 
         # List View In-Line Editing
         if self.column_editable_list:
-            self._list_form_class = self.scaffold_list_form()
+            self._list_form_class = self.get_list_form()
         else:
             self.column_editable_list = {}
 
@@ -853,10 +854,18 @@ class BaseModelView(BaseView, ActionsMixin):
         """
         raise NotImplementedError('Please implement scaffold_form method')
 
-    def scaffold_list_form(self):
+    def scaffold_list_form(self, CustomFieldList, validators=None):
         """
             Create form for the `index_view` using only the columns from
-            `self.column_editable_list`. Must be implemented in the child class.
+            `self.column_editable_list`.
+
+            :param validators:
+                `form_args` dict with only validators
+                {'name': {'validators': [required()]}}
+            :param CustomFieldList:
+                A WTForm FieldList class. By default, `ListEditableFieldList`.
+
+            Must be implemented in the child class.
         """
         raise NotImplementedError('Please implement scaffold_list_form method')
 
@@ -874,6 +883,45 @@ class BaseModelView(BaseView, ActionsMixin):
 
         return self.scaffold_form()
 
+    def get_list_form(self):
+        """
+            Get form class for the editable list view.
+
+            Uses only validators from `form_args` to build the form class.
+
+            Allows overriding the editable list view field/widget. For example::
+
+                from flask.ext.admin.model.fields import ListEditableFieldList
+                from flask.ext.admin.model.widgets import XEditableWidget
+
+                class CustomWidget(XEditableWidget):
+                    def get_kwargs(self, subfield, kwargs):
+                        if subfield.type == 'TextAreaField':
+                            kwargs['data-type'] = 'textarea'
+                            kwargs['data-rows'] = '20'
+                        # elif: kwargs for other fields
+
+                        return kwargs
+
+                class CustomFieldList(ListEditableFieldList):
+                    widget = CustomWidget()
+
+                class MyModelView(BaseModelView):
+                    def get_list_form(self):
+                        return self.scaffold_list_form(CustomFieldList)
+        """
+        if self.form_args:
+            # get only validators, other form_args can break FieldList wrapper
+            validators = dict(
+                (key, {'validators': value["validators"]})
+                for key, value in iteritems(self.form_args)
+                if value.get("validators")
+            )
+        else:
+            validators = None
+
+        return self.scaffold_list_form(ListEditableFieldList, validators)
+
     def get_create_form(self):
         """
             Create form class for model creation view.

flask_admin/model/form.py

@@ -3,7 +3,6 @@ import inspect
 from flask.ext.admin.form import BaseForm, rules
 from flask.ext.admin._compat import iteritems
 
-from .fields import ListEditableFieldList
 from wtforms.fields.core import UnboundField
 
 
@@ -14,7 +13,7 @@ def converts(*args):
     return _inner
 
 
-def wrap_fields_in_fieldlist(form_base_class, form_class):
+def wrap_fields_in_fieldlist(form_base_class, form_class, CustomFieldList):
     """
         Create a form class with all the fields wrapped in a FieldList.
 
@@ -22,6 +21,14 @@ def wrap_fields_in_fieldlist(form_base_class, form_class):
         in this format: ('<field_name>-<primary_key>', '<value>')
 
         Used in the editable list view.
+        
+        :param form_base_class:
+            WTForms form class, by default `form_base_class` from base.
+        :param form_class:
+            WTForms form class generated by `form.get_form`.
+        :param CustomFieldList:
+            WTForms FieldList class.
+            By default, `CustomFieldList` is `ListEditableFieldList`.
     """
     class FieldListForm(form_base_class):
         pass
@@ -30,7 +37,7 @@ def wrap_fields_in_fieldlist(form_base_class, form_class):
     for name, obj in iteritems(form_class.__dict__):
         if isinstance(obj, UnboundField):
             # wrap field in a WTForms FieldList
-            setattr(FieldListForm, name, ListEditableFieldList(obj))
+            setattr(FieldListForm, name, CustomFieldList(obj))
 
     return FieldListForm