From d7e9a87432fc5448f719c4778e514639996cd92d Mon Sep 17 00:00:00 2001
From: artunit <artunit@6d9bc8c9-1ec2-4278-b937-99fde70a366f>
Date: Fri, 28 Nov 2008 02:45:22 +0000
Subject: [PATCH] git-svn-id:
 svn://svn.open-ils.org/ILS-Contrib/servres/trunk@62
 6d9bc8c9-1ec2-4278-b937-99fde70a366f

---
 conifer/syrup/urls.py          |  1 +
 conifer/syrup/views.py         | 55 ++++++++++++++++++++++++++++++++++++++++++
 conifer/templates/master.xhtml |  2 +-
 3 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/conifer/syrup/urls.py b/conifer/syrup/urls.py
index 255e67a..81acbb6 100644
--- a/conifer/syrup/urls.py
+++ b/conifer/syrup/urls.py
@@ -5,6 +5,7 @@ urlpatterns = patterns('conifer.syrup.views',
     (r'^course/$', 'my_courses'),
     (r'^opencourse/$', 'open_courses'),
     (r'^join/$', 'join_course'),
+    (r'^search/$', 'search'),
     (r'^instructors/$', 'instructors'),
     (r'^course/(?P<course_id>\d+)/$', 'course_detail'),
     (r'^course/(?P<course_id>\d+)/item/(?P<item_id>\d+)/$', 'item_detail'),
diff --git a/conifer/syrup/views.py b/conifer/syrup/views.py
index 3412faa..a9f72b6 100644
--- a/conifer/syrup/views.py
+++ b/conifer/syrup/views.py
@@ -6,6 +6,8 @@ from django.contrib.auth import authenticate, login, logout
 import conifer.genshi_support as g
 from conifer.syrup import models
 from django.contrib.auth.models import User
+import re
+from django.db.models import Q
 
 #------------------------------------------------------------
 
@@ -102,3 +104,56 @@ def _heading_detail(request, item):
     """Display a heading. Show the subitems for this heading."""
     return g.render('item_heading_detail.xhtml', item=item)
     
+
+def normalize_query(query_string,
+                    findterms=re.compile(r'"([^"]+)"|(\S+)').findall,
+                    normspace=re.compile(r'\s{2,}').sub):
+    ''' Splits the query string in invidual keywords, getting rid of unecessary spaces
+        and grouping quoted words together.
+        Example:
+        
+        >>> normalize_query('  some random  words "with   quotes  " and   spaces')
+        ['some', 'random', 'words', 'with quotes', 'and', 'spaces']
+    
+    '''
+    return [normspace(' ', (t[0] or t[1]).strip()) for t in findterms(query_string)] 
+
+def get_query(query_string, search_fields):
+    ''' Returns a query, that is a combination of Q objects. That combination
+        aims to search keywords within a model by testing the given search fields.
+    
+    '''
+    query = None # Query to search for every search term        
+    terms = normalize_query(query_string)
+    for term in terms:
+        or_query = None # Query to search for a given term in each field
+        for field_name in search_fields:
+            q = Q(**{"%s__icontains" % field_name: term})
+            if or_query is None:
+                or_query = q
+            else:
+                or_query = or_query | q
+        if query is None:
+            query = or_query
+        else:
+            query = query & or_query
+    return query
+
+def search(request):
+    ''' Need to work on this
+    
+    '''
+    query_string = ''
+    found_entries = None
+    if ('q' in request.GET) and request.GET['q'].strip():
+        query_string = request.GET['q']
+        
+        entry_query = get_query(query_string, ['code', 'name',])
+        
+        #found_entries = Entry.objects.filter(entry_query).order_by('-pub_date')
+        found_entries = models.Term.objects.filter(entry_query).order_by('-pub_date')
+
+    return render_to_response('search/search_results.html',
+                          { 'query_string': query_string, 'found_entries': found_entries },
+                          context_instance=RequestContext(request))
+
diff --git a/conifer/templates/master.xhtml b/conifer/templates/master.xhtml
index df7ce76..fd80839 100644
--- a/conifer/templates/master.xhtml
+++ b/conifer/templates/master.xhtml
@@ -29,7 +29,7 @@ app_name = 'Syrup E-Reserve System'
         -->
       <div id="header">
         <div id="search">
-            <form method="get" action="search">
+            <form method="get" action="/syrup/search">
             <input id="q" name="q" maxlength="100" size="25" type="text" 
                 value="search..." onblur="if(this.value=='') this.value='search...';" 
                 onfocus="if(this.value=='search...') this.value='';"/>
-- 
2.11.0