Changeset 278

Timestamp:

02/13/07 10:40:06 (2 years ago)

Author:

matt

Message:

Added a TextAreaList? widget.

Files:

• trunk/ChangeLog (modified) (1 diff)
• trunk/formal/__init__.py (modified) (1 diff)
• trunk/formal/widget.py (modified) (2 diffs)
• trunk/setup.py (modified) (1 diff)

trunk/ChangeLog

@@ +1 @@
+2007-02-13  Matt Goodall <matt@pollenation.net>
+
+        Added a TextAreaList widget. The widget is rendered as a <textarea> and
+        splits the entered text into a sequence of values.
+
-2007-01-19  Matt Goodall <matt@pollenation.net>
-        

trunk/formal/__init__.py

@@ -4 +4 @@
-
-
-1
+2
-version = '.'.join([str(i) for i in version_info])
-

trunk/formal/widget.py

@@ -144 +144 @@
-        value = iformal.IStringConvertible(self.original).fromType(value)
-        return self.original.validate(value)
+
+
+class TextAreaList(object):
+    """
+    A text area that allows a list of values to be entered, one per line. Any
+    empty lines are discarded.
+    """
+    implements( iformal.IWidget )
+
+    cols = 48
+    rows = 6
+
+    def __init__(self, original, cols=None, rows=None):
+        self.original = original
+        if cols is not None:
+            self.cols = cols
+        if rows is not None:
+            self.rows = rows
+
+    def _renderTag(self, ctx, key, values, readonly):
+        value = '\n'.join(values)
+        tag=T.textarea(name=key, id=render_cssid(key), cols=self.cols, rows=self.rows)[value]
+        if readonly:
+            tag(class_='readonly', readonly='readonly')
+        return tag
+
+    def render(self, ctx, key, args, errors):
+        converter = iformal.IStringConvertible(self.original.type)
+        if errors:
+            values = args.get(key, [])
+        else:
+            values = args.get(key)
+            if values is not None:
+                values = [converter.fromType(v) for v in values]
+            else:
+                values = []
+        return self._renderTag(ctx, key, values, False)
+
+    def renderImmutable(self, ctx, key, args, errors):
+        converter = iformal.IStringConvertible(self.original.type)
+        values = args.get(key)
+        if values is not None:
+            values = [converter.fromType(v) for v in values]
+        else:
+            values = []
+        return self._renderTag(ctx, key, values, True)
+
+    def processInput(self, ctx, key, args):
+        # Get the whole string
+        value = args.get(key, [''])[0].decode(util.getPOSTCharset(ctx))
+        # Split into lines
+        values = value.splitlines()
+        # Strip each line
+        values = [v.strip() for v in values]
+        # Discard empty lines
+        values = [v for v in values if v]
+        # Convert values to correct type
+        converter = iformal.IStringConvertible(self.original.type)
+        values = [converter.toType(v) for v in values]
+        # Validate and return
+        return self.original.validate(values)
-
-
@@ -1139 +1200 @@
-    'Password', 'SelectChoice', 'TextArea', 'TextInput', 'DatePartsInput',
-    'DatePartsSelect', 'MMYYDatePartsInput', 'Hidden', 'RadioChoice',
-
+ 'TextAreaList',
-    ]
-

trunk/setup.py

@@ -3 +3 @@
-setup(
-    name='formal',
-1
+2
-    description='HTML forms framework for Nevow',
-    author='Matt Goodall',