Добавление выдач

data.py

@@ -3,7 +3,7 @@ from typing import Optional
 
 # Конфигурация
 USERNAME = "admin"
-PASSWORD = "n_ElBL9LTfTTgZSqHShqOg"
+PASSWORD = "7WaVlcj8EWzEbbdab9kqRw"
 BASE_URL = "http://localhost:8000"
 
 

library_service/models/__init__.py

@@ -1,3 +1,4 @@
 """Модуль моделей"""
 from .db import *
 from .dto import *
+from .enums import *

library_service/models/db/book.py

@@ -5,6 +5,7 @@ from sqlmodel import Field, Relationship
 
 from library_service.models.dto.book import BookBase
 from library_service.models.db.links import AuthorBookLink, GenreBookLink
+from library_service.models.enums import BookStatus
 
 if TYPE_CHECKING:
     from .author import Author
@@ -14,9 +15,11 @@ if TYPE_CHECKING:
 class Book(BookBase, table=True):
     """Модель книги в базе данных"""
     id: int | None = Field(default=None, primary_key=True, index=True)
+    status: BookStatus = Field(default=BookStatus.ACTIVE)
     authors: List["Author"] = Relationship(
         back_populates="books", link_model=AuthorBookLink
     )
     genres: List["Genre"] = Relationship(
         back_populates="books", link_model=GenreBookLink
     )
+    loans: List["BookUserLink"] = Relationship(sa_relationship_kwargs={"cascade": "all, delete"})

library_service/models/db/links.py

@@ -1,4 +1,5 @@
 """Модуль связей между сущностями в БД"""
+from datetime import datetime
 from sqlmodel import SQLModel, Field
 
 
@@ -22,3 +23,20 @@ class UserRoleLink(SQLModel, table=True):
 
     user_id: int | None = Field(default=None, foreign_key="users.id", primary_key=True)
     role_id: int | None = Field(default=None, foreign_key="roles.id", primary_key=True)
+
+
+class BookUserLink(SQLModel, table=True):
+    """
+    Модель истории выдачи книг (Loan).
+    Связывает книгу и пользователя с фиксацией времени.
+    """
+    __tablename__ = "book_loans"
+
+    id: int | None = Field(default=None, primary_key=True, index=True)
+    
+    book_id: int = Field(foreign_key="book.id")
+    user_id: int = Field(foreign_key="users.id")
+    
+    borrowed_at: datetime = Field(default_factory=datetime.utcnow)
+    due_date: datetime
+    returned_at: datetime | None = Field(default=None)

library_service/models/db/user.py

@@ -26,3 +26,4 @@ class User(UserBase, table=True):
 
     # Связи
     roles: List["Role"] = Relationship(back_populates="users", link_model=UserRoleLink)
+    loans: List["BookUserLink"] = Relationship(sa_relationship_kwargs={"cascade": "all, delete"})

library_service/models/dto/__init__.py

@@ -4,9 +4,10 @@ from .genre import GenreBase, GenreCreate, GenreList, GenreRead, GenreUpdate
 from .book import BookBase, BookCreate, BookList, BookRead, BookUpdate
 from .role import RoleBase, RoleCreate, RoleList, RoleRead, RoleUpdate
 from .user import UserBase, UserCreate, UserList, UserRead, UserUpdate, UserLogin
+from .loan import LoanBase, LoanCreate, LoanList, LoanRead, LoanUpdate
 from .token import Token, TokenData
 from .combined import (AuthorWithBooks, GenreWithBooks, BookWithAuthors, BookWithGenres,
-    BookWithAuthorsAndGenres, BookFilteredList)
+    BookWithAuthorsAndGenres, BookFilteredList, BookStatusUpdate, LoanWithBook)
 
 __all__ = [
     "AuthorBase",
@@ -20,11 +21,24 @@ __all__ = [
     "BookRead",
     "BookList",
     "BookFilteredList",
+    "BookStatusUpdate",
     "GenreBase",
     "GenreCreate",
     "GenreUpdate",
     "GenreRead",
     "GenreList",
+    "LoanBase",
+    "LoanCreate",
+    "LoanUpdate",
+    "LoanRead",
+    "LoanList",
+    "LoanWithBook",
+    "UserBase",
+    "UserCreate",
+    "UserUpdate",
+    "UserRead",
+    "UserList",
+    "UserLogin",
     "RoleBase",
     "RoleCreate",
     "RoleUpdate",
@@ -32,10 +46,4 @@ __all__ = [
     "RoleList",
     "Token",
     "TokenData",
-    "UserBase",
-    "UserCreate",
-    "UserRead",
-    "UserUpdate",
-    "UserList",
-    "UserLogin",
 ]

library_service/models/dto/book.py

@@ -1,11 +1,10 @@
 """Модуль DTO-моделей книг"""
-from typing import List, TYPE_CHECKING
+from typing import List
 
 from pydantic import ConfigDict
 from sqlmodel import SQLModel
 
-if TYPE_CHECKING:
-    from .combined import BookWithAuthorsAndGenres
+from library_service.models.enums import BookStatus
 
 
 class BookBase(SQLModel):
@@ -29,11 +28,13 @@ class BookUpdate(SQLModel):
     """Модель книги для обновления"""
     title: str | None = None
     description: str | None = None
+    status: BookStatus | None = None
 
 
 class BookRead(BookBase):
     """Модель книги для чтения"""
     id: int
+    status: BookStatus
 
 
 class BookList(SQLModel):

library_service/models/dto/combined.py

@@ -5,6 +5,7 @@ from sqlmodel import SQLModel, Field
 from .author import AuthorRead
 from .genre import GenreRead
 from .book import BookRead
+from .loan import LoanRead
 
 
 class AuthorWithBooks(SQLModel):
@@ -50,3 +51,11 @@ class BookFilteredList(SQLModel):
     """Список книг с фильтрацией"""
     books: List[BookWithAuthorsAndGenres]
     total: int
+
+class LoanWithBook(LoanRead):
+    """Модель выдачи, включающая данные о книге"""
+    book: BookRead
+    
+class BookStatusUpdate(SQLModel):
+    """Модель для ручного изменения статуса библиотекарем"""
+    status: str

library_service/models/dto/loan.py

@@ -0,0 +1,35 @@
+"""Модуль DTO-моделей для выдачи книг"""
+from typing import List
+
+from datetime import datetime
+from sqlmodel import SQLModel
+
+
+class LoanBase(SQLModel):
+    """Базовая модель выдачи"""
+    book_id: int
+    user_id: int
+    due_date: datetime
+
+
+class LoanCreate(LoanBase):
+    """Модель для создания записи о выдаче"""
+    pass
+
+
+class LoanUpdate(SQLModel):
+    """Модель для обновления записи о выдаче"""
+    returned_at: datetime | None = None
+
+
+class LoanRead(LoanBase):
+    """Модель чтения записи о выдаче"""
+    id: int
+    borrowed_at: datetime
+    returned_at: datetime | None = None
+
+
+class LoanList(SQLModel):
+    """Список выдач"""
+    loans: List[LoanRead]
+    total: int

library_service/models/enums.py

@@ -0,0 +1,10 @@
+"""Модуль перечислений (Enums)"""
+from enum import Enum
+
+class BookStatus(str, Enum):
+    """Статусы книги"""
+    ACTIVE = "active"           
+    BORROWED = "borrowed"       
+    RESERVED = "reserved"       
+    RESTORATION = "restoration" 
+    WRITTEN_OFF = "written_off" 

migrations/env.py

@@ -20,6 +20,7 @@ if config.config_file_name is not None:
 
 # add your model's MetaData object here
 # for 'autogenerate' support
+from library_service.models.enums import *
 from library_service.models.db import *
 
 target_metadata = SQLModel.metadata

migrations/versions/02ed6e775351_loans.py

@@ -0,0 +1,51 @@
+"""Loans
+
+Revision ID: 02ed6e775351
+Revises: b838606ad8d1
+Create Date: 2025-12-20 10:36:30.853896
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel
+
+
+# revision identifiers, used by Alembic.
+revision: str = '02ed6e775351'
+down_revision: Union[str, None] = 'b838606ad8d1'
+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! ###
+    book_status_enum = sa.Enum('active', 'borrowed', 'reserved', 'restoration', 'written_off', name='bookstatus')
+    book_status_enum.create(op.get_bind())
+    op.create_table('book_loans',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('book_id', sa.Integer(), nullable=False),
+    sa.Column('user_id', sa.Integer(), nullable=False),
+    sa.Column('borrowed_at', sa.DateTime(), nullable=False),
+    sa.Column('due_date', sa.DateTime(), nullable=False),
+    sa.Column('returned_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['book_id'], ['book.id'], ),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_book_loans_id'), 'book_loans', ['id'], unique=False)
+    op.add_column('book', sa.Column('status', book_status_enum, nullable=False, server_default='active'))
+    op.drop_index(op.f('ix_roles_name'), table_name='roles')
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_index(op.f('ix_roles_name'), 'roles', ['name'], unique=True)
+    op.drop_column('book', 'status')
+    op.drop_index(op.f('ix_book_loans_id'), table_name='book_loans')
+    op.drop_table('book_loans')
+    book_status_enum = sa.Enum('active', 'borrowed', 'reserved', 'restoration', 'written_off', name='bookstatus')
+    book_status_enum.drop(op.get_bind())
+    # ### end Alembic commands ###

migrations/versions/9d7a43ac5dfc_genres.py

@@ -1,4 +1,4 @@
-"""genres
+"""Genres
 
 Revision ID: 9d7a43ac5dfc
 Revises: d266fdc61e99

migrations/versions/b838606ad8d1_auth.py

@@ -1,4 +1,4 @@
-"""auth
+"""Auth
 
 Revision ID: b838606ad8d1
 Revises: 9d7a43ac5dfc

migrations/versions/d266fdc61e99_init.py

@@ -1,4 +1,4 @@
-"""init
+"""Init
 
 Revision ID: d266fdc61e99
 Revises: