diff --git a/docker/backend/src/backend/api/schema/helpers.cr b/docker/backend/src/backend/api/schema/helpers.cr
index 137841b..9c4174c 100644
--- a/docker/backend/src/backend/api/schema/helpers.cr
+++ b/docker/backend/src/backend/api/schema/helpers.cr
@@ -32,60 +32,25 @@ module Backend
           end
         end
 
-        # DB model leverage helpers
-        module ObjectDbInit
-          # Defines a DB model specific initializer
-          macro db_init(type)
-            def initialize(obj : {{ type }})
-              initialize(obj.id.not_nil!)
-            end
-          end
-        end
-
-        # DB model finder helpers
-        module ObjectFinders
-          # Defines finder
-          macro finders(type)
-            # Finds object by ID
-            def find : {{ type }}?
-              {{ type }}.find(@id)
-            end
-
-            # :ditto:
-            def find! : {{ type }}
-              obj = find
-              raise "#{{{ type }}} not found" unless obj
-
-              obj
-            end
-          end
-        end
-
         # DB model field helpers
         module DbObject
           # Defines DB model field helper functions
           macro db_object(type)
+            private property model
+
+            def initialize(@model : {{ type }})
+            end
+
+            def initialize(id : Int32)
+              @model = {{ type }}.find(id).not_nil!
+            end
+
             {% space_name = type.names.last.underscore.gsub(/_/, " ").capitalize %}
 
-            include ::Backend::Api::Schema::Helpers::ObjectDbInit
-            include ::Backend::Api::Schema::Helpers::ObjectFinders
-
-            db_init {{ type }}
-            finders {{ type }}
-
-            property id
-
-            def initialize(@id : Int32)
-            end
-
-            def initialize(obj : {{ type }})
-              @id = obj.id.not_nil!.to_i
-            end
-
             @[GraphQL::Field]
             # {{ space_name }}'s ID
             def id : Int32
-              @id
+              @model.id.not_nil!.to_i32
             end
           end
         end
diff --git a/docker/backend/src/backend/api/schema/student.cr b/docker/backend/src/backend/api/schema/student.cr
index 586e519..4f803b3 100644
--- a/docker/backend/src/backend/api/schema/student.cr
+++ b/docker/backend/src/backend/api/schema/student.cr
@@ -27,19 +27,19 @@ module Backend
         @[GraphQL::Field]
         # Student's user
         def user : User
-          User.new(find!.user)
+          User.new(@model.user)
         end
 
         @[GraphQL::Field]
         # Student at SKIF
         def skif : Bool
-          find!.skif
+          @model.skif
         end
 
         @[GraphQL::Field]
         # Student's vote
         def vote : Vote?
-          find!.vote.try { |v| Vote.new(v) }
+          @model.vote.try { |v| Vote.new(v) }
         end
       end
 
diff --git a/docker/backend/src/backend/api/schema/teacher.cr b/docker/backend/src/backend/api/schema/teacher.cr
index 992c7f8..47e27ca 100644
--- a/docker/backend/src/backend/api/schema/teacher.cr
+++ b/docker/backend/src/backend/api/schema/teacher.cr
@@ -27,19 +27,19 @@ module Backend
         @[GraphQL::Field]
         # Teacher's user
         def user : User
-          User.new(find!.user)
+          User.new(@model.user)
         end
 
         @[GraphQL::Field]
         # Teacher's max students
         def max_students : Int32
-          find!.max_students
+          @model.max_students
         end
 
         @[GraphQL::Field]
         # Teacher is at SKIF
         def skif : Bool
-          find!.skif
+          @model.skif
         end
       end
 
diff --git a/docker/backend/src/backend/api/schema/teacher_vote.cr b/docker/backend/src/backend/api/schema/teacher_vote.cr
index 4bc29c4..e053119 100644
--- a/docker/backend/src/backend/api/schema/teacher_vote.cr
+++ b/docker/backend/src/backend/api/schema/teacher_vote.cr
@@ -27,13 +27,13 @@ module Backend
         @[GraphQL::Field]
         # Voted teacher
         def teacher : Teacher
-          Teacher.new(find!.teacher.not_nil!)
+          Teacher.new(@model.teacher.not_nil!)
         end
 
         @[GraphQL::Field]
         # Teacher vote's priority
         def priority : Int32
-          find!.priority
+          @model.priority
         end
       end
 
diff --git a/docker/backend/src/backend/api/schema/user.cr b/docker/backend/src/backend/api/schema/user.cr
index 9561f17..38d1994 100644
--- a/docker/backend/src/backend/api/schema/user.cr
+++ b/docker/backend/src/backend/api/schema/user.cr
@@ -27,43 +27,43 @@ module Backend
         @[GraphQL::Field]
         # User's first name
         def first_name : String
-          find!.first_name
+          @model.first_name
         end
 
         @[GraphQL::Field]
         # User's last name
         def last_name : String
-          find!.last_name
+          @model.last_name
         end
 
         @[GraphQL::Field]
         # User's full name
         def name : String
-          find!.name
+          @model.name
         end
 
         @[GraphQL::Field]
         # User's LDAP username
         def username : String
-          find!.username
+          @model.username
         end
 
         @[GraphQL::Field]
         # User's email
         def email : String
-          find!.email
+          @model.email
         end
 
         @[GraphQL::Field]
         # User is admin
         def admin : Bool
-          find!.admin
+          @model.admin
         end
 
         @[GraphQL::Field]
         # User's role
         def role : UserRole
-          role = Db::UserRole.parse(find!.role)
+          role = Db::UserRole.parse(@model.role)
           case role
           when .teacher?
             UserRole::Teacher
@@ -77,11 +77,11 @@ module Backend
         @[GraphQL::Field]
         # User's external ID
         def external_id : Int32?
-          case Db::UserRole.parse(find!.role)
+          case Db::UserRole.parse(@model.role)
           when .teacher?
-            find!.teacher
+            @model.teacher
           when .student?
-            find!.student
+            @model.student
           end.not_nil!.id.not_nil!.to_i
         rescue NilAssertionError
           nil
@@ -90,7 +90,7 @@ module Backend
         @[GraphQL::Field]
         # User's external teacher object
         def teacher : Teacher?
-          teacher = find!.teacher
+          teacher = @model.teacher
           if teacher
             Teacher.new(teacher)
           end
@@ -99,7 +99,7 @@ module Backend
         @[GraphQL::Field]
         # User's external student object
         def student : Student?
-          student = find!.student
+          student = @model.student
           if student
             Student.new(student)
           end
diff --git a/docker/backend/src/backend/api/schema/vote.cr b/docker/backend/src/backend/api/schema/vote.cr
index cf24394..82978d8 100644
--- a/docker/backend/src/backend/api/schema/vote.cr
+++ b/docker/backend/src/backend/api/schema/vote.cr
@@ -27,13 +27,13 @@ module Backend
         @[GraphQL::Field]
         # Student who voted
         def student : Student
-          Student.new(find!.student)
+          Student.new(@model.student)
         end
 
         @[GraphQL::Field]
         # Teacher votes for student
         def teacher_votes : Array(TeacherVote)
-          find!.teacher_votes.map { |tv| TeacherVote.new(tv) }
+          @model.teacher_votes.map { |tv| TeacherVote.new(tv) }
         end
       end