diff --git a/back/api.py b/back/api.py
index d5464d8..a014046 100644
--- a/back/api.py
+++ b/back/api.py
@@ -139,11 +139,15 @@ async def change_book_status(data: pydantic_schemas.Book, current_user: Annotate
     if not announcement_to_change:
         raise HTTPException(status_code=404, detail="Item not found")
     # Проверяем, что объявление бронирует не владелец
-    if current_user.id == announcement_to_change.user_id:
+    if announcement_to_change.booked_by.Comparator.contains(current_user.id):
         raise HTTPException(status_code=403, detail="A user can't book his announcement")
     else:
-        # Инкрементируем поле booked_by на 1
-        announcement_to_change.booked_by += 1
+        # Инкрементируем поле booked_counter на 1
+        announcement_to_change.booked_counter += 1
+        # вставляем индекс забронировавшего пользователя в поле booked_by
+        await db.execute(mytable.insert(), data=[1,2,3])
+        
+        announcement_to_change.booked_by 
         # фиксируем изменения в бд
         await db.commit()
         await db.refresh(announcement_to_change)
diff --git a/back/orm_models.py b/back/orm_models.py
index 1c7a7b3..f8a2a31 100644
--- a/back/orm_models.py
+++ b/back/orm_models.py
@@ -1,9 +1,9 @@
 from sqlalchemy import Column, Integer, String, Boolean, Float, Date, ForeignKey
 from sqlalchemy.orm import relationship
+from sqlalchemy.dialects import postgresql
 
 from .db import Base, engine
 
-
 class User(Base):#класс пользователя
     __tablename__ = "users"
 
@@ -36,8 +36,8 @@ class Announcement(Base): #класс объявления
     src = Column(String, nullable=True) #изображение продукта в объявлении
     metro = Column(String) #ближайщее метро от адреса нахождения продукта
     trashId = Column(Integer, nullable=True)
-    booked_by = Column(Integer) #количество забронировавших (0 - никто не забронировал)
-    # state = Column(Enum(State), default=State.published) # состояние объявления (опубликовано, забронировано, устарело)
+    booked_by = postgresql.ARRAY(Integer, dimensions=2) #массив с id пользователей, забронировавших объявление
+    booked_counter = Column(Integer) #количество забронировавших (0 - никто не забронировал)
     obsolete = Column(Boolean, default=False) # состояние объявления (по-умолчанию считаем его актуальным)
 
     user = relationship("User", back_populates="announcements")
diff --git a/migrations/versions/4e4d30fd58fc_points_added_to_user_model_owner_id_.py b/migrations/versions/4e4d30fd58fc_points_added_to_user_model_owner_id_.py
index 1e774be..4b022aa 100644
--- a/migrations/versions/4e4d30fd58fc_points_added_to_user_model_owner_id_.py
+++ b/migrations/versions/4e4d30fd58fc_points_added_to_user_model_owner_id_.py
@@ -20,7 +20,6 @@ def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
     with op.batch_alter_table('announcements', schema=None) as batch_op:
         batch_op.add_column(sa.Column('user_id', sa.Integer(), nullable=True))
-        batch_op.add_column(sa.Column('state', sa.Enum('published', 'taken', 'obsolete', name='state'), nullable=True))
         # batch_op.drop_constraint(None, type_='foreignkey')
         batch_op.create_foreign_key('fk_users_id', 'users', ['user_id'], ['id'])
         batch_op.drop_column('owner_id')
@@ -42,7 +41,6 @@ def downgrade():
         batch_op.add_column(sa.Column('owner_id', sa.INTEGER(), nullable=True))
         # batch_op.drop_constraint('fk_users_id', type_='foreignkey')
         batch_op.create_foreign_key(None, 'users', ['owner_id'], ['id'])
-        batch_op.drop_column('state')
         batch_op.drop_column('user_id')
 
     # ### end Alembic commands ###
diff --git a/migrations/versions/547f860f21a7_in_trashbox_model_categories_category.py b/migrations/versions/547f860f21a7_in_trashbox_model_categories_category.py
index 0a4586f..0a69736 100644
--- a/migrations/versions/547f860f21a7_in_trashbox_model_categories_category.py
+++ b/migrations/versions/547f860f21a7_in_trashbox_model_categories_category.py
@@ -18,13 +18,6 @@ depends_on = None
 
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    with op.batch_alter_table('poems', schema=None) as batch_op:
-        batch_op.add_column(sa.Column('title', sa.String(), nullable=True))
-        batch_op.add_column(sa.Column('text', sa.String(), nullable=True))
-        batch_op.add_column(sa.Column('author', sa.String(), nullable=True))
-        batch_op.drop_column('poem_name')
-        batch_op.drop_column('poem_text')
-
     with op.batch_alter_table('trashboxes', schema=None) as batch_op:
         batch_op.add_column(sa.Column('category', sa.String(), nullable=True))
         batch_op.drop_column('categories')
@@ -37,12 +30,4 @@ def downgrade():
     with op.batch_alter_table('trashboxes', schema=None) as batch_op:
         batch_op.add_column(sa.Column('categories', sa.VARCHAR(), nullable=True))
         batch_op.drop_column('category')
-
-    with op.batch_alter_table('poems', schema=None) as batch_op:
-        batch_op.add_column(sa.Column('poem_text', sa.VARCHAR(), nullable=True))
-        batch_op.add_column(sa.Column('poem_name', sa.VARCHAR(), nullable=True))
-        batch_op.drop_column('author')
-        batch_op.drop_column('text')
-        batch_op.drop_column('title')
-
     # ### end Alembic commands ###
diff --git a/migrations/versions/5a8105ac1a4f_added_booked_by_column_which_contains_.py b/migrations/versions/5a8105ac1a4f_added_booked_by_column_which_contains_.py
new file mode 100644
index 0000000..312c504
--- /dev/null
+++ b/migrations/versions/5a8105ac1a4f_added_booked_by_column_which_contains_.py
@@ -0,0 +1,66 @@
+"""Added booked_by column which contains id of users who booked the announcement old booked_by renamed to booked_counter
+
+Revision ID: 5a8105ac1a4f
+Revises: 547f860f21a7
+Create Date: 2024-08-09 15:07:51.386406
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '5a8105ac1a4f'
+down_revision: Union[str, None] = '547f860f21a7'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('announcements', sa.Column('booked_counter', sa.Integer(), nullable=True))
+    op.alter_column('announcements', 'longtitude',
+               existing_type=sa.INTEGER(),
+               type_=sa.Float(),
+               existing_nullable=True)
+    op.alter_column('announcements', 'latitude',
+               existing_type=sa.INTEGER(),
+               type_=sa.Float(),
+               existing_nullable=True)
+    op.drop_column('announcements', 'booked_by')
+    op.alter_column('trashboxes', 'latitude',
+               existing_type=sa.INTEGER(),
+               type_=sa.Float(),
+               existing_nullable=True)
+    op.alter_column('trashboxes', 'longtitude',
+               existing_type=sa.INTEGER(),
+               type_=sa.Float(),
+               existing_nullable=True)
+    op.create_foreign_key(None, 'trashboxes', 'users', ['user_id'], ['id'])
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'trashboxes', type_='foreignkey')
+    op.alter_column('trashboxes', 'longtitude',
+               existing_type=sa.Float(),
+               type_=sa.INTEGER(),
+               existing_nullable=True)
+    op.alter_column('trashboxes', 'latitude',
+               existing_type=sa.Float(),
+               type_=sa.INTEGER(),
+               existing_nullable=True)
+    op.add_column('announcements', sa.Column('booked_by', sa.INTEGER(), autoincrement=False, nullable=True))
+    op.alter_column('announcements', 'latitude',
+               existing_type=sa.Float(),
+               type_=sa.INTEGER(),
+               existing_nullable=True)
+    op.alter_column('announcements', 'longtitude',
+               existing_type=sa.Float(),
+               type_=sa.INTEGER(),
+               existing_nullable=True)
+    op.drop_column('announcements', 'booked_counter')
+    # ### end Alembic commands ###
diff --git a/migrations/versions/8e631a2fe6b8_lazy_selectin_added_to_user_table_.py b/migrations/versions/8e631a2fe6b8_lazy_selectin_added_to_user_table_.py
deleted file mode 100644
index 736e5a3..0000000
--- a/migrations/versions/8e631a2fe6b8_lazy_selectin_added_to_user_table_.py
+++ /dev/null
@@ -1,30 +0,0 @@
-"""lazy=selectin added to user table relationships
-
-Revision ID: 8e631a2fe6b8
-Revises: 
-Create Date: 2023-09-02 23:45:08.799366
-
-"""
-from typing import Sequence, Union
-
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision: str = '8e631a2fe6b8'
-down_revision: Union[str, None] = None
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    # ### commands auto generated by Alembic - please adjust! ###
-    pass
-    # ### end Alembic commands ###
-
-
-def downgrade() -> None:
-    # ### commands auto generated by Alembic - please adjust! ###
-    pass
-    # ### end Alembic commands ###
diff --git a/migrations/versions/9c19b9658512_user_model_got_a_new_field_num_of_.py b/migrations/versions/9c19b9658512_user_model_got_a_new_field_num_of_.py
index a4ea8d5..718520d 100644
--- a/migrations/versions/9c19b9658512_user_model_got_a_new_field_num_of_.py
+++ b/migrations/versions/9c19b9658512_user_model_got_a_new_field_num_of_.py
@@ -18,10 +18,8 @@ depends_on = None
 
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_table('_alembic_tmp_users')
     with op.batch_alter_table('announcements', schema=None) as batch_op:
         batch_op.add_column(sa.Column('obsolete', sa.Boolean(), nullable=True))
-        batch_op.drop_column('state')
 
     with op.batch_alter_table('poems', schema=None) as batch_op:
         batch_op.add_column(sa.Column('title', sa.String(), nullable=True))
@@ -49,16 +47,5 @@ def downgrade():
         batch_op.drop_column('title')
 
     with op.batch_alter_table('announcements', schema=None) as batch_op:
-        batch_op.add_column(sa.Column('state', sa.VARCHAR(length=9), nullable=True))
         batch_op.drop_column('obsolete')
-
-    op.create_table('_alembic_tmp_users',
-    sa.Column('id', sa.INTEGER(), nullable=False),
-    sa.Column('email', sa.VARCHAR(), nullable=True),
-    sa.Column('hashed_password', sa.VARCHAR(), nullable=True),
-    sa.Column('name', sa.VARCHAR(), nullable=True),
-    sa.Column('surname', sa.VARCHAR(), nullable=True),
-    sa.Column('disabled', sa.BOOLEAN(), nullable=True),
-    sa.PrimaryKeyConstraint('id')
-    )
     # ### end Alembic commands ###