hudoratools taglib, eAP aufgeraumt

git-svn-id: https://cybernetics.hudora.biz/intern/svn/code/trunk/web/lib/hudoratools@1162 2a7d6d32-97f8-0310-8fd3-c67d3a265405

templatetags/hudoratools.py

@@ -0,0 +1,37 @@
+from django import template
+from django.template import resolve_variable
+import re
+
+register = template.Library()
+
+def html_euro(value):
+    "Formats a value with two decimal digits and andds an Euro sign in HTML entity notation"
+
+    try:
+        value = float(value)
+    except ValueError:
+        return value
+    return "%.2f €" % (value)
+register.filter(html_euro)
+
+
+class FieldAndErrorInfoNode(template.Node):
+    def __init__(self, field):
+        self.field = field
+
+    def render(self, context):
+        field = resolve_variable(self.field, context)
+        ret = str(field)
+        if not field.errors():
+            return ret
+        #return "*** " + (", ".join([str(x) for x in field.errors()]))
+        return '<div class="error">%s %s</div>' % (ret, field.html_error_list())
+
+def do_field_and_error_info(parser, token):
+    try:
+        # split_contents() knows not to split quoted strings.
+        tag_name, field = token.contents.split()
+    except ValueError:
+        raise template.TemplateSyntaxError, "%r tag requires a single argument" % token.contents[0]
+    return FieldAndErrorInfoNode(field)
+register.tag('field_and_error_info', do_field_and_error_info)