use db_session for articles and sections

sections/views.py

@@ -15,7 +15,7 @@ import flask
 @section_pages.route("")
 @section_pages.route(".json")
 def index():
-    sections=Section.query.all()
+    sections=controller.get_all()
     return jsonify(sections=sections)
 
 
@@ -29,9 +29,7 @@ def update(id):
 @section_pages.route("/<int:id>",methods=['GET'])
 @section_pages.route("/<int:id>.json",methods=['GET'])
 def get(id):
-    section=Section.query.get(id)
-    clogger.info(section)
-#    section=SectionSchema().dump(section)[0]
+    section=controller.get(id)
     return jsonify(section=section)
 
 
@@ -39,7 +37,7 @@ def get(id):
 @section_pages.route("/<int:id>/articles.json",methods=['GET'])
 def get_articles(id):
     v=request.values
-    pp,o=article_controller.pagination_params(v) # extract per_page and offset from params
+    pp,o=article_controller.pagination_params(v) 
     articles=article_controller.get_section_page(id,pp,o)
 
     resp = jsonify(articles=articles)