From c5ab5de00e45dc96c32173e4697b3fd713c08c88 Mon Sep 17 00:00:00 2001
From: Arvind <arvindkhadri@gmail.com>
Date: Thu, 9 Jan 2014 18:33:57 +0530
Subject: [PATCH] Abstracting query to ``Query`` class.  Now a developer can
 instansiate a ``Query`` object with a table from database
 and then run pre-defined queries.

---
 query.py |   50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 query.py

diff --git a/query.py b/query.py
new file mode 100644
index 0000000..f86543c
--- /dev/null
+++ b/query.py
@@ -0,0 +1,50 @@
+import logger
+from sqlalchemy.sql import func
+
+
+class Query:
+    """Objects of query class can be used to run specific queries."""
+    def __init__(self, table):
+        self.t = logger.Logger(table)
+
+
+    def posts(self, date, dateRange):
+        return self.t.lt.query.filter(self.t.lt.status == 3,
+                                 self.t.lt.posted.between(date, dateRange)).count()
+
+    def recordings(self, date, dateRange):
+        return self.t.lt.query.filter(self.t.lt.posted.between(date,
+                                                            dateRange)).count()
+    def filter_by_title(self, title, date, dateRange):
+        return self.t.lt.query.filter(self.t.lt.title.like(title+'%'),
+                            self.t.lt.posted.between(date, dateRange)).count()
+
+    def load(self, channel, date, dateRange):
+        query =  self.t.lt.query.with_entities(func.sum(self.t.lt.duration).label('sum')).filter(self.t.lt.dcontext == "callback", self.t.lt.channel.like(channel+'%'), self.t.lt.calldate.between(date, dateRange))
+        sum = 0
+        for res in query:
+           sum = res.sum/60
+        return sum
+
+    def average(self, date, dateRange):
+        query = self.t.lt.query.with_entities(func.avg(self.t.lt.duration).label('average')).filter(self.t.lt.dcontext == "callback", self.t.lt.calldate.between(date, dateRange))
+        average = 0
+        for res in query:
+            average = res.average/60
+        return average
+
+    def sum(self, date, dateRange):
+        query = self.t.lt.query.with_entities(func.sum(self.t.lt.duration).label('sum')).filter(self.t.lt.dcontext == "callback", self.t.lt.calldate.between(date, dateRange))
+        sum = 0
+        for res in query:
+            sum = res.sum/60
+        return sum
+
+    def missedCalls(self, date, dateRange):
+        return self.t.lt.query.filter(((self.t.lt.dcontext == 'mobilink') |
+                                     (self.t.lt.dcontext == 'mobilinktata')) &
+                                    (self.t.lt.calldate.between(date, dateRange))).count()
+
+    def answeredCalls(self, date, dateRange):
+        return self.t.lt.query.filter(self.t.lt.dcontext == 'callback',
+                                    self.t.lt.calldate.between(date, dateRange)).count()
\ No newline at end of file
-- 
1.7.10.4