article sections

articles/controller.py

@@ -6,6 +6,26 @@ import json
 from src.database import db_session, read_json
 
 
+def pagination_params(v):
+    try:
+        if v.has_key("per_page"):
+            pp=int(v["per_page"])
+        else:
+            pp=20
+        if v.has_key("page"):
+            o=(int(v["page"])-1) *pp
+        else:
+            o=0
+    except ValueError:
+        pp=20
+        o=0
+    if not (isinstance(pp,int) and pp>0 and pp<10000):
+        pp=20
+    if not (isinstance(o,int) and o>=0 and o<100000):
+        o=0
+    return (pp, o)
+
+
 def get_all():
     return Article.query.order_by(Article.published_date.desc()).all()
 
@@ -15,5 +35,9 @@ def search(s):
 def get_all_page(lim, off):
     return Article.query.order_by(Article.published_date.desc()).limit(lim).offset(off).all()
 
+
+def get_section_page(section_id, lim, off):
+    return Article.query.filter(Article.section_id==section_id).order_by(Article.published_date.desc()).limit(lim).offset(off).all()
+
 def count():
     return Article.query.count()

articles/views.py

@@ -21,23 +21,11 @@ import controller
 @article_pages.route(".json")
 def index():
     v=request.values
-    try:
-        if v.has_key("per_page"):
-            pp=int(v["per_page"])
-        else:
-            pp=20
-        if v.has_key("page"):
-            o=(int(v["page"])-1) *pp
-        else:
-            o=0
-    except ValueError:
-        pp=20
-        o=0
-    if not (isinstance(pp,int) and pp>0 and pp<10000):
-        pp=20
-    if not (isinstance(o,int) and o>=0 and o<100000):
-        o=0
-    articles=controller.get_all_page(pp,o)
+    pp,o=controller.pagination_params(v) # extract per_page and offset from params
+    if v.has_key("section_id"):
+        articles=controller.get_section_page(int(v["section_id"]),pp,o)
+    else:    
+        articles=controller.get_all_page(pp,o)
     resp = jsonify(articles=articles)
     resp.headers['Pagination-Limit']=pp
     resp.headers['Pagination-Offset']=o