From 2c78b3d76a96169b59748fe7fc781ff5c99ad345 Mon Sep 17 00:00:00 2001
From: helmutm <helmutm@fd906abe-77d9-0310-91a1-e0d9ade77398>
Date: Mon, 17 Dec 2007 09:10:31 +0000
Subject: [PATCH] glossary grouped by first letter

git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@2254 fd906abe-77d9-0310-91a1-e0d9ade77398
---
 browser/concept.py                | 20 ++++++++++++++++----
 browser/loops.css                 | 16 ++++++++++++++++
 knowledge/glossary/view_macros.pt | 21 +++++++++++++++++++--
 3 files changed, 51 insertions(+), 6 deletions(-)

diff --git a/browser/concept.py b/browser/concept.py
index cfbb743..1135fcb 100644
--- a/browser/concept.py
+++ b/browser/concept.py
@@ -22,6 +22,7 @@ Definition of the concept view classes.
 $Id$
 """
 
+from itertools import groupby
 from zope import interface, component, schema
 from zope.app import zapi
 from zope.app.catalog.interfaces import ICatalog
@@ -139,16 +140,17 @@ class ConceptView(BaseView):
             widget.setRenderedValue(value)
             yield dict(title=f.title, value=value, id=n, widget=widget)
 
-    def children(self):
+    def children(self, topLevelOnly=True, sort=True):
         cm = self.loopsRoot.getConceptManager()
         hasType = cm.getTypePredicate()
         standard = cm.getDefaultPredicate()
         #rels = self.context.getChildRelations()
         rels = (ConceptRelationView(r, self.request, contextIsSecond=True)
                 for r in self.context.getChildRelations(sort=None))
-        rels = sorted(rels, key=lambda r: (r.order, r.title.lower()))
+        if sort:
+            rels = sorted(rels, key=lambda r: (r.order, r.title.lower()))
         for r in rels:
-            if r.predicate == hasType:
+            if topLevelOnly and r.predicate == hasType:
                 # only show top-level entries for type instances:
                 skip = False
                 for parent in r.context.getParents((standard,)):
@@ -157,7 +159,17 @@ class ConceptView(BaseView):
                         break
                 if skip: continue
             yield r
-            #yield ConceptRelationView(r, self.request, contextIsSecond=True)
+
+    def childrenAlphaGroups(self):
+        letters = []
+        relations = {}
+        rels = self.children(topLevelOnly=False, sort=False)
+        rels = sorted(rels, key=lambda r: r.title.lower())
+        for letter, group in groupby(rels, lambda r: r.title.lower()[0]):
+            letter = letter.upper()
+            letters.append(letter)
+            relations[letter] = list(group)
+        return dict(letters=letters, relations=relations)
 
     def parents(self):
         rels = sorted(self.context.getParentRelations(),
diff --git a/browser/loops.css b/browser/loops.css
index a01dd3b..97d4c3b 100644
--- a/browser/loops.css
+++ b/browser/loops.css
@@ -112,6 +112,22 @@ img.notselected {
     border: 2px solid #eff8ff;
 }
 
+.navlink {
+    font-size: 130%;
+    margin-bottom: 1em;
+}
+
+.navlink a {
+    font-weight: bold;
+    text-decoration: underline;
+}
+
+.subtitle {
+    font-size: 140%;
+    font-weight: bold;
+    margin: 1em 0 0.5em 0;
+}
+
 
 /* search stuff */
 
diff --git a/knowledge/glossary/view_macros.pt b/knowledge/glossary/view_macros.pt
index e224ffe..593a46d 100755
--- a/knowledge/glossary/view_macros.pt
+++ b/knowledge/glossary/view_macros.pt
@@ -1,15 +1,32 @@
 <!-- ZPT macros for loops.knowledge.glossary views -->
 
-<metal:block define-macro="glossary">
+<metal:block define-macro="glossary"
+             tal:define="data item/childrenAlphaGroups">
   <metal:title use-macro="item/conceptMacros/concepttitle" />
+  <div><a name="top">&nbsp;</a></div>
+  <div>
+    <span tal:repeat="letter python: [chr(c) for c in range(ord('A'), ord('Z')+1)]"
+          class="navlink">
+      <a href="#"
+         tal:omit-tag="python: letter not in data['letters']"
+         tal:attributes="href string:#$letter"
+         tal:content="letter">A</a>
+    </span>
+  </div>
   <div>&nbsp;</div>
-  <div tal:repeat="related item/children">
+  <div tal:repeat="letter data/letters">
+    <div class="subtitle"><a name="A" href="#top"
+           tal:attributes="name letter"
+           tal:content="letter">A</a>
+    </div>
+    <div tal:repeat="related data/relations/?letter|python:[]">
       <a href="#"
          tal:content="related/title"
          tal:attributes="href python: view.getUrlForTarget(related);
                          title related/description">
         Topic
       </a>
+    </div>
   </div>
 </metal:block>