python学习

common/libs/Helper.py

@@ -1,6 +1,54 @@
 # -*- coding: utf-8 -*-
 from flask import g,render_template
 import datetime
+'''
+自定义分页类
+'''
+def iPagination( params ):
+    import math
+
+    ret = {
+        "is_prev":1,
+        "is_next":1,
+        "from" :0 ,
+        "end":0,
+        "current":0,
+        "total_pages":0,
+        "page_size" : 0,
+        "total" : 0,
+        "url":params['url'].replace("&p=","")
+    }
+
+    total = int( params['total'] )
+    page_size = int( params['page_size'] )
+    page = int( params['page'] )
+    display = int( params['display'] )
+    total_pages = int( math.ceil( total / page_size ) )
+    total_pages = total_pages if total_pages > 0 else 1
+    if page <= 1:
+        ret['is_prev'] = 0
+
+    if page >= total_pages:
+        ret['is_next'] = 0
+
+    semi = int( math.ceil( display / 2 ) )
+
+    if page - semi > 0 :
+        ret['from'] = page - semi
+    else:
+        ret['from'] = 1
+
+    if page + semi <= total_pages :
+        ret['end'] = page + semi
+    else:
+        ret['end'] = total_pages
+
+    ret['current'] = page
+    ret['total_pages'] = total_pages
+    ret['page_size'] = page_size
+    ret['total'] = total
+    ret['range'] = range( ret['from'],ret['end'] + 1 )
+    return ret
 
 
 '''