X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=unfold%2Fpage.py;h=d239888677a7d7a987f078267ed0f843e5e02521;hb=e7e3f8c484f6a215a60d67a29fc3f9e25c22b213;hp=52d587702524470e978e7b87d5c7d48ef263975c;hpb=7c9892a134c74fba4de425609e392a99c7de4d71;p=myslice.git

diff --git a/unfold/page.py b/unfold/page.py
index 52d58770..d2398886 100644
--- a/unfold/page.py
+++ b/unfold/page.py
@@ -6,11 +6,13 @@ import json
 
 from django.template.loader import render_to_string
 
-from manifold.metadata import MetaData
+from manifoldapi.metadata import MetaData
 
 from unfold.prelude import Prelude
-
-from myslice.config import Config
+from unfold.sessioncache import SessionCache
+    
+from myslice.configengine import ConfigEngine
+from myslice.settings import logger
 
 # decorator to deflect calls on this Page to its prelude
 def to_prelude (method):
@@ -33,8 +35,8 @@ class Page:
         # queue of queries with maybe a domid, see enqueue_query
         self._queue=[]
         # global prelude object
-        self.prelude=Prelude(css_files='css/plugin.css')
-        self.prelude=Prelude(css_files='css/onelab_marko.css')
+        # global requirements should go in base.html
+        self.prelude=Prelude()
 
     # record known plugins hashed on their domid
     def record_plugin (self, plugin):
@@ -49,7 +51,7 @@ class Page:
 #        self._queue = []
 
     # this method adds a query to the page
-    # the query will be exposed to js when calling expose_queries
+    # the query will be exposed to js when calling __expose_queries, which is done by prelude_env() 
     # additionally if run_it is set to True, this query will be asynchroneously triggered on page load
     # in this case (exec=True) the js async callback (see manifold.asynchroneous_success)
     # offers the option to deliver the result to a specific DOM elt (in this case, set domid)
@@ -69,10 +71,15 @@ class Page:
         # we only do this if run_it is set
         if run_it: self._queue.append ( (query.query_uuid,domid) )
 
+    def generate_records(self, query, generators, number=10):
+        self.add_js_files('js/record_generator.js');
+        js_chunk = '$(document).ready(function() { new RecordGenerator(%s,%s,%s).run(); });'%(query.to_json(),json.dumps(generators),number);
+        self.add_js_chunks(js_chunk)
+    
     # return the javascript code for exposing queries
     # all queries are inserted in the global manifold object
     # in addition, the ones enqueued with 'run_it=True' are triggered 
-    def expose_queries (self):
+    def __expose_queries (self):
         # compute variables to expose to the template
         env = {}
         # expose the json definition of all queries
@@ -81,7 +88,7 @@ class Page:
             result={'query_uuid':a}
             if b: result['domid']=b
             return result
-        env['query_publish_dom_tuples'] = [ query_publish_dom_tuple (a,b) for (a,b) in self._queue ]
+        env['query_exec_tuples'] = [ query_publish_dom_tuple (a,b) for (a,b) in self._queue ]
         javascript = render_to_string ("page-queries.js",env)
         self.add_js_chunks (javascript)
 #        self.reset_queue()
@@ -89,29 +96,6 @@ class Page:
         self.expose_js_manifold_config()
 
 
-# DEPRECATED #    # needs to be called explicitly and only when metadata is actually required
-# DEPRECATED #    # in particular user needs to be logged
-# DEPRECATED #    def get_metadata (self):
-# DEPRECATED #        # look in session's cache - we don't want to retrieve this for every request
-# DEPRECATED #        session=self.request.session
-# DEPRECATED #        if 'manifold' not in session:
-# DEPRECATED #            print "Page.expose_js_metadata: no 'manifold' in session... - cannot retrieve metadata - skipping"
-# DEPRECATED #            return
-# DEPRECATED #        manifold=session['manifold']
-# DEPRECATED #        # if cached, use it
-# DEPRECATED #        if 'metadata' in manifold and isinstance(manifold['metadata'],MetaData):
-# DEPRECATED #            if debug: print "Page.get_metadata: return cached value"
-# DEPRECATED #            return manifold['metadata']
-# DEPRECATED #        # otherwise retrieve it
-# DEPRECATED #        manifold_api_session_auth = session['manifold']['auth']
-# DEPRECATED #        print "get_metadata(), manifold_api_session_auth =", session['manifold']['auth']
-# DEPRECATED #        metadata=MetaData (manifold_api_session_auth)
-# DEPRECATED #        metadata.fetch()
-# DEPRECATED #        # store it for next time
-# DEPRECATED #        manifold['metadata']=metadata
-# DEPRECATED #        if debug: print "Page.get_metadata: return new value"
-# DEPRECATED #        return metadata
-
     # needs to be called explicitly and only when metadata is actually required
     # in particular user needs to be logged
     def get_metadata (self):
@@ -124,24 +108,36 @@ class Page:
 
         # if cached, use it
         if 'metadata' in manifold and isinstance(manifold['metadata'],MetaData):
-            if debug: print "Page.get_metadata: return cached value"
+
+#         cached_metadata = SessionCache().get_metadata(self.request)
+#         if cached_metadata and isinstance(cached_metadata, MetaData):
+            logger.debug("Page.get_metadata: return cached value")
             return manifold['metadata']
+#             return cached_metadata
 
         metadata_auth = {'AuthMethod':'anonymous'}
 
-        metadata=MetaData (metadata_auth)
-        metadata.fetch()
+        from myslice.settings import config
+        url = config.manifold_url()
+        metadata = MetaData(url, metadata_auth)
+        metadata.fetch(self.request)
         # store it for next time
-        manifold['metadata']=metadata
-        if debug: print "Page.get_metadata: return new value"
-        return metadata
+        manifold['metadata']=metadata.to_json()
+#         SessionCache().store_metadata(self.request, metadata)
+        logger.debug("Page.get_metadata: return new value")
+        return metadata.to_json()
             
     def expose_js_metadata (self):
-        # export in this js global...
-        self.add_js_chunks("var MANIFOLD_METADATA =" + self.get_metadata().to_json() + ";")
+        # expose global MANIFOLD_METADATA as a js variable
+        # xxx this is fetched synchroneously..
+        self.add_js_init_chunks("var MANIFOLD_METADATA =" + self.get_metadata() + ";\n")
+
+    def expose_js_var(self, name, value):
+        # expose variable as a js value
+        self.add_js_init_chunks("var " + name + "=" + value + ";\n")
 
     def expose_js_manifold_config (self):
-        self.add_js_chunks(Config.manifold_js_export())
+        self.add_js_init_chunks(ConfigEngine().manifold_js_export())
 
     #################### requirements/prelude management
     # just forward to self.prelude - see decorator above
@@ -150,8 +146,14 @@ class Page:
     @to_prelude
     def add_css_files (self):pass
     @to_prelude
+    def add_js_init_chunks (self):pass
+    @to_prelude
     def add_js_chunks (self):pass
     @to_prelude
     def add_css_chunks (self):pass
-    @to_prelude
-    def prelude_env (self):pass
+
+    # prelude_env also does expose_queries
+    def prelude_env (self):
+        self.__expose_queries()
+        from_prelude=self.prelude.prelude_env()
+        return from_prelude