Add a Slug P2P campaign naming algorithm

lib/slug_p2p_campaign_naming_algorithm.rb

@@ -0,0 +1,27 @@
+# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
+class SlugP2pCampaignNamingAlgorithm < CopyNamingAlgorithm
+
+  attr_accessor :nonprofit_id
+  # @param [Integer] nonprofit_id
+  def initialize(nonprofit_id)
+     @nonprofit_id = nonprofit_id
+  end
+
+  def copy_addition
+    ""
+  end
+
+  def max_copies
+    999
+  end
+
+  def get_name_for_entity(name_entity)
+    name_entity.slug
+  end
+
+  def get_already_used_name_entities(base_name)
+    end_name = "\\_\\d{3}"
+    Campaign.where('slug SIMILAR TO ? AND nonprofit_id = ? AND (deleted IS NULL OR deleted = false)', base_name + end_name, nonprofit_id).select('slug')
+  end
+
+end

spec/lib/slug_p2p_campaign_naming_algorithm_spec.rb

@@ -0,0 +1,70 @@
+# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
+require 'rails_helper'
+
+describe SlugP2pCampaignNamingAlgorithm do
+  describe '.create_copy_name' do
+    before(:all) {
+        Timecop.freeze(2020,5,4)
+    }
+    after(:all) {
+        Timecop.return
+    }
+
+    def set_name(name)
+      @name = name
+    end
+
+    let(:short_slug) { "slug_name"}
+    let(:short_slug_copy_today) { "slug_name_000"}
+    let(:short_slug_copy_today_plus_1) { "slug_name_001"}
+    let(:copy_base) {"slug_name"}
+
+
+    let(:nonprofit) {force_create(:nonprofit)}
+
+
+    describe 'campaigns' do
+      let(:campaign) {force_create(:campaign, :slug => @name, nonprofit: nonprofit)}
+      let(:campaign2) {force_create(:campaign, :slug => @name2, nonprofit:nonprofit)}
+      let(:campaigns_at_max_copies) { (0..999).collect{|i|
+        force_create(:campaign, slug: "#{@copy_base}_#{"%03d" % i}", nonprofit:nonprofit)
+      }}
+      let(:algo) {SlugP2pCampaignNamingAlgorithm.new( nonprofit.id)}
+      describe 'campaign slugs' do
+
+        it 'not a copy' do
+          @name = short_slug
+          campaign
+          expect(algo.create_copy_name(@name)).to eq short_slug_copy_today
+        end
+        it 'one copy exists' do
+          @name = short_slug
+          @name2 = short_slug_copy_today
+          campaign
+          campaign2
+          expect(algo.create_copy_name(@name)).to eq short_slug_copy_today_plus_1
+          expect(algo.create_copy_name(@name2)).to eq short_slug_copy_today_plus_1
+        end
+
+        it 'errors when at max copies' do
+          @name = short_slug
+          @copy_base = copy_base
+          campaign
+          campaigns_at_max_copies
+
+          expect{ algo.create_copy_name(@name) }.to(raise_error{|error|
+            expect(error).to be_a ArgumentError
+          })
+          campaigns_at_max_copies.each {|i|
+            expect {algo.create_copy_name(i.slug)}.to(raise_error{|error|
+              expect(error).to be_a ArgumentError
+            })
+          }
+        end
+
+
+      end
+    end
+  end
+end
+