More grid filter improvements; add choice/enum/date value renderers.

tailbone/newgrids/filters.py

@@ -43,9 +43,6 @@ class FilterValueRenderer(object):
     Base class for all filter renderers.
     """
 
-    def __init__(self, filter=None):
-        self.filter = filter
-
     @property
     def name(self):
         return self.filter.key
@@ -69,12 +66,40 @@ class NumericValueRenderer(FilterValueRenderer):
     Input renderer for numeric values.
     """
 
+    def render(self, value=None, **kwargs):
+        return tags.text(self.name, value=value, type='number', **kwargs)
+
 
 class DateValueRenderer(FilterValueRenderer):
     """
     Input renderer for date values.
     """
 
+    def render(self, value=None, **kwargs):
+        return tags.text(self.name, value=value, type='date', **kwargs)
+
+
+class ChoiceValueRenderer(FilterValueRenderer):
+    """
+    Renders value input as a dropdown/selectmenu of available choices.
+    """
+
+    def __init__(self, choices):
+        self.choices = choices
+
+    def render(self, value=None, **kwargs):
+        return tags.select(self.name, [value], self.choices, **kwargs)
+
+
+class EnumValueRenderer(ChoiceValueRenderer):
+    """
+    Renders value input as a dropdown/selectmenu of available choices.
+    """
+
+    def __init__(self, enum):
+        sorted_keys = sorted(enum, key=lambda k: enum[k].lower())
+        self.choices = [(k, enum[k]) for k in sorted_keys]
+
 
 class GridFilter(object):
     """
@@ -106,11 +131,7 @@ class GridFilter(object):
         self.key = key
         self.label = label or prettify(key)
         self.verbs = verbs or self.get_default_verbs()
-        if value_renderer is not None:
-            value_renderer.filter = self
-            self.value_renderer = value_renderer
-        else:
-            self.value_renderer = self.value_renderer_factory(self)
+        self.set_value_renderer(value_renderer or self.value_renderer_factory)
         self.default_active = default_active
         self.default_verb = default_verb
         self.default_value = default_value
@@ -130,6 +151,15 @@ class GridFilter(object):
             return verbs
         return ['equal', 'not_equal', 'is_null', 'is_not_null']
 
+    def set_value_renderer(self, renderer):
+        """
+        Set the value renderer for the filter, post-construction.
+        """
+        if not isinstance(renderer, FilterValueRenderer):
+            renderer = renderer()
+        renderer.filter = self
+        self.value_renderer = renderer
+
     def filter(self, data, verb=None, value=UNSPECIFIED):
         """
         Filter the given data set according to a verb/value pair.  If no verb
@@ -278,6 +308,7 @@ class AlchemyNumericFilter(AlchemyGridFilter):
     """
     Numeric filter for SQLAlchemy.
     """
+    value_renderer_factory = NumericValueRenderer
 
     def default_verbs(self):
         """
@@ -314,6 +345,13 @@ class AlchemyDateFilter(AlchemyGridFilter):
     """
     value_renderer_factory = DateValueRenderer
 
+    def default_verbs(self):
+        """
+        Expose greater-than / less-than verbs in addition to core.
+        """
+        return ['equal', 'not_equal', 'greater_than', 'greater_equal',
+                'less_than', 'less_equal', 'is_null', 'is_not_null']
+
     def filter_is_true(self, query, value):
         """
         Filter data with an "is true" query (alias for "is not null").

tailbone/static/js/jquery.ui.tailbone.js

@@ -250,6 +250,18 @@
                 }
             });
 
+            // Enhance any date values with datepicker widget.
+            this.inputs.find('.value input[type="date"]').datepicker({
+                dateFormat: 'yy-mm-dd',
+                changeYear: true,
+                changeMonth: true
+            });
+
+            // Enhance any choice/dropdown values with selectmenu.
+            this.inputs.find('.value select').selectmenu({
+                width: '15em'
+            });
+
             // Listen for button click, to keep checkbox in sync.
             this._on(this.activebutton, {
                 click: function(e) {
@@ -269,6 +281,11 @@
         refresh: function() {
             if (this.checkbox.is(':checked')) {
                 this.activebutton.button('option', 'icons', {primary: 'ui-icon-check'});
+                if (this.verb() in this.valueless_verbs) {
+                    this.inputs.find('.value').hide();
+                } else {
+                    this.inputs.find('.value').show();
+                }
                 this.inputs.show();
             } else {
                 this.activebutton.button('option', 'icons', {primary: 'ui-icon-blank'});
@@ -312,7 +329,7 @@
         },
 
         value: function() {
-            return this.inputs.find('.value input').val();
+            return this.inputs.find('.value input, .value select').val();
         },
 
         verb: function() {