fix: Combine all migrations into one (#1172)

Author: januszm

db/migrate/1_acts_as_taggable_on_migration.rb

@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+# Combined migration for acts_as_taggable_on setup
+# Combines migrations 1-7 from acts_as_taggable_on_engine
+class SetupActsAsTaggableOn < ActiveRecord::Migration[7.1]
+  def up
+    # Create tags table
+    unless table_exists?(ActsAsTaggableOn.tags_table)
+      create_table ActsAsTaggableOn.tags_table do |t|
+        t.string :name
+        t.integer :taggings_count, default: 0
+        t.timestamps
+      end
+    end
+
+    # Add unique index on tag name
+    unless index_exists?(ActsAsTaggableOn.tags_table, :name)
+      add_index ActsAsTaggableOn.tags_table, :name, unique: true
+    end
+
+    # Create taggings table
+    unless table_exists?(ActsAsTaggableOn.taggings_table)
+      create_table ActsAsTaggableOn.taggings_table do |t|
+        t.references :tag, foreign_key: { to_table: ActsAsTaggableOn.tags_table }
+        t.references :taggable, polymorphic: true
+        t.references :tagger, polymorphic: true
+        t.string :context, limit: 128
+        t.string :tenant, limit: 128
+        t.datetime :created_at
+      end
+    end
+
+    # Add all indexes
+    add_index ActsAsTaggableOn.taggings_table,
+              %i[tag_id taggable_id taggable_type context tagger_id tagger_type],
+              unique: true, name: "taggings_idx" unless index_exists?(ActsAsTaggableOn.taggings_table, "taggings_idx", name: true)
+
+    add_index ActsAsTaggableOn.taggings_table, %i[taggable_id taggable_type context],
+              name: "taggings_taggable_context_idx" unless index_exists?(ActsAsTaggableOn.taggings_table, "taggings_taggable_context_idx", name: true)
+
+    add_index ActsAsTaggableOn.taggings_table, :tag_id unless index_exists?(ActsAsTaggableOn.taggings_table, :tag_id)
+    add_index ActsAsTaggableOn.taggings_table, :taggable_id unless index_exists?(ActsAsTaggableOn.taggings_table, :taggable_id)
+    add_index ActsAsTaggableOn.taggings_table, :taggable_type unless index_exists?(ActsAsTaggableOn.taggings_table, :taggable_type)
+    add_index ActsAsTaggableOn.taggings_table, :tagger_id unless index_exists?(ActsAsTaggableOn.taggings_table, :tagger_id)
+    add_index ActsAsTaggableOn.taggings_table, :context unless index_exists?(ActsAsTaggableOn.taggings_table, :context)
+    add_index ActsAsTaggableOn.taggings_table, %i[tagger_id tagger_type] unless index_exists?(ActsAsTaggableOn.taggings_table, %i[tagger_id tagger_type])
+    add_index ActsAsTaggableOn.taggings_table, %i[taggable_id taggable_type tagger_id context],
+              name: "taggings_idy" unless index_exists?(ActsAsTaggableOn.taggings_table, "taggings_idy", name: true)
+    add_index ActsAsTaggableOn.taggings_table, :tenant unless index_exists?(ActsAsTaggableOn.taggings_table, :tenant)
+
+    # Change collation for MySQL
+    return unless ActsAsTaggableOn::Utils.using_mysql?
+    return if table_exists?(ActsAsTaggableOn.tags_table) && column_exists?(ActsAsTaggableOn.tags_table, :name)
+
+    execute("ALTER TABLE #{ActsAsTaggableOn.tags_table} MODIFY name varchar(255) CHARACTER SET utf8 COLLATE utf8_bin;")
+  end
+
+  def down
+    # Depdending on your needs, you might want to implement the down method.
+    # Uncomment the lines below for new installations where rollback is necessary.
+    # drop_table ActsAsTaggableOn.taggings_table
+    # drop_table ActsAsTaggableOn.tags_table
+    raise ActiveRecord::IrreversibleMigration
+  end
+end