fixes #824

app/logical/tag_alias_request.rb

@@ -0,0 +1,39 @@
+class TagAliasRequest
+  class ValidationError < Exception ; end
+  
+  attr_reader :antecedent_name, :consequent_name, :reason, :tag_alias, :forum_topic
+  
+  def initialize(antecedent_name, consequent_name, reason)
+    @antecedent_name = antecedent_name
+    @consequent_name = consequent_name
+    @reason = reason
+  end
+  
+  def create
+    TagAlias.transaction do
+      create_alias
+      create_forum_topic
+    end
+  end
+  
+  def create_alias
+    @tag_alias = TagAlias.create(:antecedent_name => antecedent_name, :consequent_name => consequent_name, :status => "pending")
+    if @tag_alias.errors.any?
+      raise ValidationError.new(@tag_alias.errors.full_messages.join("; "))
+    end
+  end
+  
+  def create_forum_topic
+    @forum_topic = ForumTopic.create(
+      :title => "Tag alias: #{antecedent_name} -> #{consequent_name}",
+      :original_post_attributes => {
+        :body => reason + "\n\n\"Link to alias\":/tag_aliases?search[id]=#{tag_alias.id}"
+      }
+    )
+    if @forum_topic.errors.any?
+      raise ValidationError.new(@forum_topic.errors.full_messages.join("; "))
+    end
+    
+    tag_alias.update_attribute(:forum_topic_id, @forum_topic.id)
+  end
+end

app/logical/tag_implication_request.rb

@@ -0,0 +1,39 @@
+class TagImplicationRequest
+  class ValidationError < Exception ; end
+  
+  attr_reader :antecedent_name, :consequent_name, :reason, :tag_implication, :forum_topic
+  
+  def initialize(antecedent_name, consequent_name, reason)
+    @antecedent_name = antecedent_name
+    @consequent_name = consequent_name
+    @reason = reason
+  end
+  
+  def create
+    TagImplication.transaction do
+      create_implication
+      create_forum_topic
+    end
+  end
+  
+  def create_implication
+    @tag_implication = TagImplication.create(:antecedent_name => antecedent_name, :consequent_name => consequent_name, :status => "pending")
+    if @tag_implication.errors.any?
+      raise ValidationError.new(@tag_implication.errors.full_messages.join("; "))
+    end
+  end
+  
+  def create_forum_topic
+    @forum_topic = ForumTopic.create(
+      :title => "Tag implication: #{antecedent_name} -> #{consequent_name}",
+      :original_post_attributes => {
+        :body => reason + "\n\n\"Link to implication\":/tag_implications?search[id]=#{tag_implication.id}"
+      }
+    )
+    if @forum_topic.errors.any?
+      raise ValidationError.new(@forum_topic.errors.full_messages.join("; "))
+    end
+    
+    tag_implication.update_attribute(:forum_topic_id, @forum_topic.id)
+  end
+end