Import: Destroy associated `Referential` on destroy if ready:false

If the `Import`'s associated `Referential` has `ready: false`, destroy
that `Referential` when the import is destroyed.

Aaand looking back at the task it turns out that's not what I was
supposed to do. Right, it does seem a little weird in retrospect.
Instead we want to delete the `Referential`s of child imports.

Refs #4962

2 files changed, 25 insertions, 0 deletions

diff --git a/app/models/import.rb b/app/models/import.rb
index 20e7f2d8a..68cb62f86 100644
--- a/app/models/import.rb
+++ b/app/models/import.rb
@@ -22,6 +22,7 @@ class Import < ActiveRecord::Base
   validates_format_of :file, with: %r{\.zip\z}i, message: I18n.t('activerecord.errors.models.import.attributes.file.wrong_file_extension')
 
   before_create :initialize_fields
+  before_destroy :destroy_non_ready_referential
 
   def self.model_name
     ActiveModel::Name.new Import, Import, "Import"
@@ -97,6 +98,12 @@ class Import < ActiveRecord::Base
     self.token_download = SecureRandom.urlsafe_base64
   end
 
+  def destroy_non_ready_referential
+    if !referential.ready
+      referential.destroy
+    end
+  end
+
   def self.symbols_with_indifferent_access(array)
     array.flat_map { |symbol| [symbol, symbol.to_s] }
   end
diff --git a/spec/models/import_spec.rb b/spec/models/import_spec.rb
index 7be05908a..dfb947711 100644
--- a/spec/models/import_spec.rb
+++ b/spec/models/import_spec.rb
@@ -57,6 +57,24 @@ RSpec.describe Import, type: :model do
 
       expect(ImportMessage.count).to eq(0)
     end
+
+    it "must destroy its associated Referential if ready: false" do
+      referential = create(:referential, ready: false)
+      import = create(:import, referential: referential)
+
+      import.destroy
+
+      expect(referential).to be_destroyed
+    end
+
+    it "must not destroy its associated Referential if ready: true" do
+      referential = create(:referential, ready: true)
+      import = create(:import, referential: referential)
+
+      import.destroy
+
+      expect(referential).not_to be_destroyed
+    end
   end
 
   describe "#notify_parent" do