Test eager loading

scripts/migrations/20221004003152781_add_user_tables.cr

@@ -0,0 +1,26 @@
+class AddUserTables < Jennifer::Migration::Base
+  def up
+    create_table(:test_users) do |t|
+      t.integer :id, {:primary => true, :null => false, :auto_increment => true}
+      t.string :email
+    end
+
+    create_table(:teams) do |t|
+      t.integer :id, {:primary => true, :null => false, :auto_increment => true}
+      t.string :name, {:null => false}
+    end
+
+    create_table(:team_members) do |t|
+      t.integer :id, {:primary => true, :null => false, :auto_increment => true}
+      t.integer :role, {:null => false}
+      t.reference :test_user, :integer, {:null => false}
+      t.reference :team, :integer, {:null => false}
+    end
+  end
+
+  def down
+    drop_table :test_users
+    drop_table :teams
+    drop_table :team_members
+  end
+end

spec/config.cr

@@ -61,15 +61,16 @@ def set_default_configuration
 
   Jennifer::Config.configure do |conf|
     conf.read(File.join(__DIR__, "../scripts/database.yml"), Spec.adapter)
-    conf.logger = Spec.logger
+    conf.logger = ::Log.for("db", :debug)
     # conf.logger.level = :debug
     conf.user = ENV["DB_USER"] if ENV["DB_USER"]?
     conf.password = ENV["DB_PASSWORD"] if ENV["DB_PASSWORD"]?
     conf.verbose_migrations = false
     conf.local_time_zone_name = "Europe/Kiev"
   end
 
-  Log.setup "db", :debug, Spec.logger_backend
+  Log.setup(:debug)
+  # Log.setup "db", :debug, Spec.logger_backend
   # Log.setup "db", :debug, Log::IOBackend.new(formatter: Jennifer::DBFormat)
 end
 

spec/test_spec.cr

@@ -0,0 +1,40 @@
+require "../spec/spec_helper"
+
+class TestUser < Jennifer::Model::Base
+  mapping(
+    id: Primary32,
+    email: String?,
+  )
+  has_many :memberships, TeamMember
+end
+
+class TeamMember < Jennifer::Model::Base
+  mapping(
+    id: Primary32,
+    test_user_id: Int32,
+    team_id: Int32,
+    role: Int32,
+  )
+  belongs_to :team, Team
+  belongs_to :test_user, TestUser
+end
+
+class Team < Jennifer::Model::Base
+  mapping(
+    id: Primary32,
+    name: String,
+  )
+  has_many :members, TeamMember
+end
+
+it "eager loads" do
+  puts 1
+  u = TestUser.new({email: "test@example.com"})
+  u.save
+  t = Team.new({name: "team"})
+  t.save
+  tm = TeamMember.new({test_user_id: u.id, team_id: t.id, role: 1})
+  tm.save
+  debugger
+  all = Team.all.eager_load(members: [:test_user]).to_a
+end