Increased size channels.options column (fixed datatype).

db/migrate/20120101000010_create_ticket.rb

@@ -342,7 +342,7 @@ class CreateTicket < ActiveRecord::Migration
     create_table :channels do |t|
       t.references :group,                             null: true
       t.column :area,           :string, limit: 100,   null: false
-      t.column :options,        :string, limit: 500.kilobytes + 1,  null: true
+      t.column :options,        :text,   limit: 500.kilobytes + 1,  null: true
       t.column :active,         :boolean,              null: false, default: true
       t.column :preferences,    :string, limit: 2000, null: true
       t.column :last_log_in,    :text,   limit: 500.kilobytes + 1, null: true

db/migrate/20160718000001_update_channel.rb

@@ -4,6 +4,6 @@ class UpdateChannel < ActiveRecord::Migration
     # return if it's a new setup
     return if !Setting.find_by(name: 'system_init_done')
 
-    change_column :channels, :options, :string, limit: 500.kilobytes + 1,  null: true
+    change_column :channels, :options, :text, limit: 500.kilobytes + 1,  null: true
   end
 end