Added possibility to choose the time range in which bot will search test results
PRODX-37645

Change-Id: I360a4df3805f222879b70e505e9d2adde3a0a012
diff --git a/testrail_bot/control/models.py b/testrail_bot/control/models.py
index 0956b1a..94bade9 100644
--- a/testrail_bot/control/models.py
+++ b/testrail_bot/control/models.py
@@ -43,7 +43,9 @@
     ip_filter = models.BooleanField(default=True)
     uuid_filter = models.BooleanField(default=True)
     filter_last_traceback = models.BooleanField(default=False)
-    timestamp = models.DateField(default=datetime.date.today())
+    created_before = models.DateField(default=datetime.date.today())
+    created_after = models.DateField(default=datetime.date.today() +
+                                             datetime.timedelta(days=-3*30))
 
     @property
     def text_filters(self):
@@ -58,7 +60,8 @@
     def testrail_filters(self):
         return {
             "created_by_id": self.created_by_id,
-            "created_before": self.timestamp,
+            "created_after": self.created_after,
+            "created_before": self.created_before,
             "run_name": self.run_name,
             "plan_name": self.plan_name,
             "test_pattern": self.test_pattern,