Event's url is no longer required

app/models/event.rb

@@ -22,7 +22,7 @@ class Event < ActiveRecord::Base
   validates :description, presence: true
   validates :city, presence: true
   validates :region, presence: true
-  validates :url, presence: true, format: %r{\Ahttps?:\/\/.*\..*\z}
+  validates :url, allow_nil: true, format: %r{\Ahttps?:\/\/.*\..*\z}
   validates :contact, email: true
   validates :submitter, email: true
 

app/views/digests/markdown.html.haml

@@ -22,6 +22,7 @@
       = p
     \
     * #{[event.place_name, event.full_address].compact.join ', '}
+    - if event.url.present?
       * #{Event.human_attribute_name :url}: #{link_to event.url, event.url}
     * #{Event.human_attribute_name :tags}:
     #{event.tags.collect { |tag| "[#{tag}](#{tag_url tag.name})" }.join ', '}

app/views/events/_form.html.haml

@@ -82,7 +82,7 @@
       :markdown
         #{t '.url_helper'}
     = f.label :url
-    = f.url_field :url, required: true, placeholder: 'Ex: http://april.org'
+    = f.url_field :url, placeholder: 'Ex: http://april.org'
   .field.contact
     .helper
       :markdown

app/views/events/show.html.haml

@@ -97,6 +97,7 @@
 %h3
   %em.fa.fa-info-circle
   = t '.infos'
+- if @event.url.present?
   %p
     %em.fa.fa-external-link
     %span.label= Event.human_attribute_name :url

app/views/events/show.text.haml

@@ -10,6 +10,7 @@
 #{Event.human_attribute_name(:city).concat(':').ljust 12       } #{@event.city}
 #{Event.human_attribute_name(:region).concat(':').ljust 12     } #{@event.region}
 #{Event.human_attribute_name(:locality).concat(':').ljust 12   } #{t "attributes.locality_#{@event.locality}"}
+- if @event.url.present?
   #{Event.human_attribute_name(:url).concat(':').ljust 12        } #{@event.url}
 #{Event.human_attribute_name(:contact).concat(':').ljust 12    } #{@event.contact}
 #{Event.human_attribute_name(:submitter).concat(':').ljust 12  } #{@event.submitter}

db/migrate/20170422083422_change_events_null_url.rb

@@ -0,0 +1,6 @@
+# Event url are now optional
+class ChangeEventsNullUrl < ActiveRecord::Migration
+  def change
+    change_column :events, :url, :string, default: '', null: true
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20161210154558) do
+ActiveRecord::Schema.define(version: 20170422083422) do
 
   create_table "active_admin_comments", force: :cascade do |t|
     t.string   "namespace",     limit: 255
@@ -66,7 +66,7 @@ ActiveRecord::Schema.define(version: 20161210154558) do
     t.string   "city",              limit: 255,   default: ""
     t.integer  "region_id",         limit: 4,     default: 0,  null: false
     t.integer  "locality",          limit: 4,     default: 0,  null: false
-    t.string   "url",               limit: 255,   default: "", null: false
+    t.string   "url",               limit: 255,   default: ""
     t.string   "contact",           limit: 255,   default: "", null: false
     t.string   "submitter",         limit: 255,   default: "", null: false
     t.integer  "moderated",         limit: 4,     default: 0,  null: false