feat(admin): task removing type de champ from draft revision from a csv

app/tasks/maintenance/delete_draft_revision_type_de_champs_task.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+module Maintenance
+  class DeleteDraftRevisionTypeDeChampsTask < MaintenanceTasks::Task
+    csv_collection
+
+    # See UpdateDraftRevisionTypeDeChampsTask for more information
+    # Just add delete_flag with "true" to effectively remove the type de champ from the draft.
+
+    def process(row)
+      return unless row["delete_flag"] == "true"
+
+      procedure_id = row["demarche_id"]
+      typed_id = row["id"]
+
+      Rails.logger.info { "#{self.class.name}: Processing #{row.inspect}" }
+
+      revision = Procedure.find(procedure_id).draft_revision
+
+      stable_id = revision.types_de_champ.find { _1.to_typed_id == typed_id }&.stable_id
+
+      fail "TypeDeChamp not found ! #{typed_id}" if stable_id.nil?
+
+      coordinate, type_de_champ = revision.coordinate_and_tdc(stable_id)
+
+      if coordinate&.used_by_routing_rules?
+        fail "#{typed_id} / #{type_de_champ.libelle} » est utilisé pour le routage, vous ne pouvez pas le supprimer."
+      end
+
+      revision.remove_type_de_champ(stable_id)
+    end
+  end
+end

spec/tasks/maintenance/delete_draft_revision_type_de_champs_task_spec.rb

@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+module Maintenance
+  RSpec.describe DeleteDraftRevisionTypeDeChampsTask do
+    let(:procedure) { create(:procedure, :published, types_de_champ_public:) }
+    let(:types_de_champ_public) {
+      [
+        { type: :text, libelle: "Text", stable_id: 11, mandatory: true },
+        { type: :number, libelle: "Number", description: "Old desc", stable_id: 12 },
+        {
+          type: :repetition, libelle: "Bloc", stable_id: 13, children: [
+            { type: :text, libelle: "RepText", stable_id: 131, description: "Remove me", mandatory: true },
+            { type: :number, libelle: "RepNum", stable_id: 132 }
+          ]
+        }
+      ]
+    }
+
+    let(:csv) do
+      <<~CSV
+        demarche_id,id,new_libelle,new_description,new_required,new_position,delete_flag
+        #{procedure.id},#{find_by_stable_id(12).to_typed_id},[NEW] Number,[NEW] Number desc,true,0,
+        #{procedure.id},#{find_by_stable_id(13).to_typed_id},Bloc,[NEW] bloc desc,,1,
+        #{procedure.id},#{find_by_stable_id(132).to_typed_id},[NEW] RepNum,,true,2,true
+        #{procedure.id},#{find_by_stable_id(131).to_typed_id},[NEW] RepText,,,3,
+        #{procedure.id},#{find_by_stable_id(11).to_typed_id},[supp] Text,,,4,true
+      CSV
+    end
+
+    let(:rows) do
+      CSV.parse(csv, headers: true, skip_blanks: true).map(&:to_h)
+    end
+
+    describe "#process" do
+      subject(:process) do
+        rows.each { described_class.process(_1) }
+        procedure.reload
+      end
+
+      it "delete the flagged rows" do
+        process
+
+        tdc = find_by_stable_id(12)
+        expect(tdc).not_to be_nil
+
+        tdc = find_by_stable_id(13)
+        expect(tdc).not_to be_nil
+
+        tdc = find_by_stable_id(11)
+        expect(tdc).to be_nil
+
+        tdc = find_by_stable_id(131)
+        expect(tdc).not_to be_nil
+        expect(tdc.revision_type_de_champ.position).to eq(0) # reindexed
+
+        tdc = find_by_stable_id(132)
+        expect(tdc).to be_nil
+      end
+    end
+
+    def find_by_stable_id(stable_id)
+      procedure.draft_revision.types_de_champ.find { _1.stable_id == stable_id }
+    end
+  end
+end