Fix new rubocop warnings

app/controllers/amf_controller.rb

@@ -86,14 +86,14 @@ class AmfController < ApplicationController
           orn = renumberednodes.dup
           result = putway(renumberednodes, *args)
           result[4] = renumberednodes.reject { |k, _v| orn.key?(k) }
-          renumberedways[result[2]] = result[3] if result[0] == 0 && result[2] != result[3]
+          renumberedways[result[2]] = result[3] if result[0].zero? && result[2] != result[3]
         when "putrelation" then
           result = putrelation(renumberednodes, renumberedways, *args)
         when "deleteway" then
           result = deleteway(*args)
         when "putpoi" then
           result = putpoi(*args)
-          renumberednodes[result[2]] = result[3] if result[0] == 0 && result[2] != result[3]
+          renumberednodes[result[2]] = result[3] if result[0].zero? && result[2] != result[3]
         when "startchangeset" then
           result = startchangeset(*args)
         end
@@ -163,7 +163,7 @@ class AmfController < ApplicationController
       end
 
       # open a new changeset
-      if opennew != 0
+      if opennew.nonzero?
         cs = Changeset.new
         cs.tags = cstags
         cs.user_id = user.id
@@ -540,7 +540,7 @@ class AmfController < ApplicationController
       tags = strip_non_xml_chars tags
 
       relid = relid.to_i
-      visible = (visible.to_i != 0)
+      visible = visible.to_i.nonzero?
 
       new_relation = nil
       relation = nil
@@ -644,7 +644,7 @@ class AmfController < ApplicationController
           id = a[2].to_i
           version = a[3].to_i
 
-          return -2, "Server error - node with id 0 found in way #{originalway}." if id == 0
+          return -2, "Server error - node with id 0 found in way #{originalway}." if id.zero?
           return -2, "Server error - node with latitude -90 found in way #{originalway}." if lat == 90
 
           id = renumberednodes[id] if renumberednodes[id]

app/controllers/swf_controller.rb

@@ -195,7 +195,7 @@ class SwfController < ApplicationController
   # Find number of bits required to store arbitrary-length binary
 
   def length_sb(n)
-    Math.frexp(n + (n == 0 ? 1 : 0))[1] + 1
+    Math.frexp(n + (n.zero? ? 1 : 0))[1] + 1
   end
 
   # ====================================================================

app/models/node.rb

@@ -81,7 +81,7 @@ class Node < ActiveRecord::Base
       node.id = pt["id"].to_i
       # .to_i will return 0 if there is no number that can be parsed.
       # We want to make sure that there is no id with zero anyway
-      raise OSM::APIBadUserInput.new("ID of node cannot be zero when updating.") if node.id == 0
+      raise OSM::APIBadUserInput.new("ID of node cannot be zero when updating.") if node.id.zero?
     end
 
     # We don't care about the time, as it is explicitly set on create/update/delete

app/models/relation.rb

@@ -60,7 +60,7 @@ class Relation < ActiveRecord::Base
       relation.id = pt["id"].to_i
       # .to_i will return 0 if there is no number that can be parsed.
       # We want to make sure that there is no id with zero anyway
-      raise OSM::APIBadUserInput.new("ID of relation cannot be zero when updating.") if relation.id == 0
+      raise OSM::APIBadUserInput.new("ID of relation cannot be zero when updating.") if relation.id.zero?
     end
 
     # We don't care about the timestamp nor the visibility as these are either

app/models/trace.rb

@@ -197,7 +197,7 @@ class Trace < ActiveRecord::Base
       trace.id = pt["id"].to_i
       # .to_i will return 0 if there is no number that can be parsed.
       # We want to make sure that there is no id with zero anyway
-      raise OSM::APIBadUserInput.new("ID of trace cannot be zero when updating.") if trace.id == 0
+      raise OSM::APIBadUserInput.new("ID of trace cannot be zero when updating.") if trace.id.zero?
     end
 
     # We don't care about the time, as it is explicitly set on create/update/delete

app/models/way.rb

@@ -58,7 +58,7 @@ class Way < ActiveRecord::Base
       way.id = pt["id"].to_i
       # .to_i will return 0 if there is no number that can be parsed.
       # We want to make sure that there is no id with zero anyway
-      raise OSM::APIBadUserInput.new("ID of way cannot be zero when updating.") if way.id == 0
+      raise OSM::APIBadUserInput.new("ID of way cannot be zero when updating.") if way.id.zero?
     end
 
     # We don't care about the timestamp nor the visibility as these are either

db/migrate/008_remove_segments.rb

@@ -2,7 +2,7 @@ require "migrate"
 
 class RemoveSegments < ActiveRecord::Migration
   def self.up
-    have_segs = select_value("SELECT count(*) FROM current_segments").to_i != 0
+    have_segs = select_value("SELECT count(*) FROM current_segments").to_i.nonzero?
 
     if have_segs
       prefix = File.join Dir.tmpdir, "008_remove_segments.#{$PROCESS_ID}."

db/migrate/020_populate_node_tags_and_remove.rb

@@ -2,7 +2,7 @@ require "migrate"
 
 class PopulateNodeTagsAndRemove < ActiveRecord::Migration
   def self.up
-    have_nodes = select_value("SELECT count(*) FROM current_nodes").to_i != 0
+    have_nodes = select_value("SELECT count(*) FROM current_nodes").to_i.nonzero?
 
     if have_nodes
       prefix = File.join Dir.tmpdir, "020_populate_node_tags_and_remove.#{$PROCESS_ID}."

lib/classic_pagination/pagination.rb

@@ -273,7 +273,7 @@ module ActionController
                           1
                         else
                           q, r = @item_count.divmod(@items_per_page)
-                          r == 0 ? q : q + 1
+                          r.zero? ? q : q + 1
                         end
       end
 

script/gravatar

@@ -4,7 +4,7 @@
 
 start = 0
 User.where("image_use_gravatar AND id >=" + start.to_s).order("id").find_each do |user|
-  p "checked up to id " + user.id.to_s if user.id % 1000 == 0 # just give a rough indication where we are for restarting
+  p "checked up to id " + user.id.to_s if (user.id % 1000).zero? # just give a rough indication where we are for restarting
   next if user.image.present?
   hash = Digest::MD5.hexdigest(user.email.downcase)
   url = "https://www.gravatar.com/avatar/#{hash}?d=404" # without d=404 we will always get an image back