Reutilizar validación de ID y existencia de objetos.

[software/sercom.git] / sercom / controllers.py

diff --git a/sercom/controllers.py b/sercom/controllers.py
index 13f6172c36c027bfc8bf4c20e53e489811e172f9..5e785eaf8d9fac42453fd8699255c708fd67024d 100644 (file)
--- a/sercom/controllers.py
+++ b/sercom/controllers.py
@@ -1,6 +1,6 @@
 # vim: set et sw=4 sts=4 encoding=utf-8 :
 
 # vim: set et sw=4 sts=4 encoding=utf-8 :
 

-from turbogears import controllers, expose
+from turbogears import controllers, expose, view

 from turbogears import widgets as w, validators
 from turbogears import identity, redirect
 from cherrypy import request, response
 from turbogears import widgets as w, validators
 from turbogears import identity, redirect
 from cherrypy import request, response


@@ -77,3 +77,38 @@ class Root(controllers.RootController):
 
     docente = DocenteController()
 
 
     docente = DocenteController()
 

+#{{{ Agrega summarize a namespace tg de KID
+def summarize(text, size, concat=True, continuation='...'):
+    """Summarize a string if it's length is greater than a specified size. This
+    is useful for table listings where you don't want the table to grow because
+    of a large field.
+
+    >>> from sercome.controllers
+    >>> text = '''Why is it that nobody remembers the name of Johann
+    ... Gambolputty de von Ausfern-schplenden-schlitter-crasscrenbon-fried-
+    ... digger-dingle-dangle-dongle-dungle-burstein-von-knacker-thrasher-apple-
+    ... banger-horowitz-ticolensic-grander-knotty-spelltinkle-grandlich-
+    ... grumblemeyer-spelterwasser-kurstlich-himbleeisen-bahnwagen-gutenabend-
+    ... bitte-ein-nurnburger-bratwustle-gernspurten-mitz-weimache-luber-
+    ... hundsfut-gumberaber-shonedanker-kalbsfleisch-mittler-aucher von
+    ... Hautkopft of Ulm?'''
+    >>> summarize(text, 30)
+    'Why is it that nobody remem...'
+    >>> summarize(text, 68, False, ' [...]')
+    'Why is it that nobody remembers the name of Johann\nGambolputty [...]'
+    >>> summarize(text, 68, continuation=' >>')
+    'Why is it that nobody remembers the name of Johann Gambolputty de >>'
+    """
+    if text is not None:
+        if concat:
+            text = text.replace('\n', ' ')
+        if len(text) > size:
+            text = text[:size-len(continuation)] + continuation
+    return text
+
+def add_custom_stdvars(vars):
+    return vars.update(dict(summarize=summarize))
+
+view.variable_providers.append(add_custom_stdvars)
+#}}}
+