change user deletion scope from 120 days to 60 days

app/logical/reports/user_promotions.rb

@@ -38,14 +38,14 @@ module Reports
     end
 
     def self.deletion_confidence_interval_for(user, days = nil)
-      date = (days || 120).days.ago
+      date = (days || 60).days.ago
       deletions = Post.where("created_at >= ?", date).where(:uploader_id => user.id, :is_deleted => true).count
       total = Post.where("created_at >= ?", date).where(:uploader_id => user.id).count
       ci_lower_bound(deletions, total)
     end
 
     def self.negative_score_confidence_interval_for(user, days = nil)
-      date = (days || 120).days.ago
+      date = (days || 60).days.ago
       hits = Post.where("created_at >= ? and score < 0", date).where(:uploader_id => user.id).count
       total = Post.where("created_at >= ?", date).where(:uploader_id => user.id).count
       ci_lower_bound(hits, total)

app/models/user.rb

@@ -523,7 +523,7 @@ class User < ActiveRecord::Base
     end
 
     def max_upload_limit
-      dcon = [deletion_confidence(120), 15].min
+      dcon = [deletion_confidence(60), 15].min
       [(base_upload_limit * (1 - (dcon / 15.0))).ceil, 10].max
     end
 

app/presenters/user_presenter.rb

@@ -58,7 +58,7 @@ class UserPresenter
       return "none"
     end
     
-    dcon = [user.deletion_confidence(120), 15].min
+    dcon = [user.deletion_confidence(60), 15].min
     multiplier = (1 - (dcon / 15.0))
     max_count = [(user.base_upload_limit * multiplier).ceil, 5].max
     uploaded_count = Post.for_user(user.id).where("created_at >= ?", 24.hours.ago).count

app/views/reports/user_promotions.html.erb

@@ -2,7 +2,7 @@
   <div id="a-user-promotions">
     <h1>User Promotion Report</h1>
 
-    <p>Binomial proportion confidence interval for how likely a user's uploads will achieve a score of at at least n with 95% confidence within the past 120 days. Most statistics are not significant unless there are at least 300 uploads.</p>
+    <p>Binomial proportion confidence interval for how likely a user's uploads will achieve a score of at at least n with 95% confidence within the past 60 days. Most statistics are not significant unless there are at least 300 uploads.</p>
 
     <table width="100%" class="striped" id="sortable">
       <thead>