Remove iwla parameter in hook functions

plugins/display/all_visits.py

@@ -9,8 +9,8 @@ class IWLADisplayAllVisits(IPlugin):
         super(IWLADisplayAllVisits, self).__init__(iwla)
         self.API_VERSION = 1
 
-    def hook(self, iwla):
-        hits = iwla.getValidVisitors()
+    def hook(self):
+        hits = self.iwla.getValidVisitors()
         last_access = sorted(hits.values(), key=lambda t: t['last_access'], reverse=True)
 
         cur_time = self.iwla.getCurTime()
@@ -40,7 +40,7 @@ class IWLADisplayAllVisits(IPlugin):
         display = self.iwla.getDisplay()
         display.addPage(page)
 
-        index = iwla.getDisplayIndex()
+        index = self.iwla.getDisplayIndex()
         block = DisplayHTMLRawBlock()
         block.setRawHTML('<a href=\'%s\'>All visits</a>' % (filename))
         index.appendBlock(block)

plugins/display/referers.py

@@ -70,8 +70,8 @@ class IWLADisplayReferers(IPlugin):
                     key_phrases[key_phrase] += 1
                 break
 
-    def hook(self, iwla):
-        stats = iwla.getCurrentVisists()
+    def hook(self):
+        stats = self.iwla.getCurrentVisists()
         referers = {}
         robots_referers = {}
         search_engine_referers = {}

plugins/display/top_visitors.py

@@ -10,10 +10,10 @@ class IWLADisplayTopVisitors(IPlugin):
         self.API_VERSION = 1
         self.requires = ['IWLAPostAnalysisTopVisitors']
 
-    def hook(self, iwla):
-        stats = iwla.getMonthStats()
+    def hook(self):
+        stats = self.iwla.getMonthStats()
 
-        index = iwla.getDisplayIndex()
+        index = self.iwla.getDisplayIndex()
         table = DisplayHTMLBlockTable('Top visitors', ['Host', 'Pages', 'Hits', 'Bandwidth', 'Last seen'])
         for super_hit in stats['top_visitors']:
             address = super_hit['remote_addr']