feat:增加训练场和错题集接口

models/library.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, BigInteger, String, Text, TIMESTAMP, Integer, ForeignKey
+from sqlalchemy import Column, BigInteger, String, Text, Integer, ForeignKey
 from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import relationship
 
@@ -19,6 +19,18 @@ class LibraryFile(AuditBase):
         cascade="all, delete-orphan"
     )
 
+    practice_record = relationship(
+        "PracticeRecord",
+        back_populates="library_file",
+        cascade="all, delete-orphan"
+    )
+
+    mistake = relationship(
+        "Mistake",
+        back_populates="library_file",
+        cascade="all, delete-orphan"
+    )
+
 
 class LibraryFileQuestion(AuditBase):
     library_file_id = Column(BigInteger, ForeignKey("library_file.id"), nullable=False)
@@ -32,3 +44,38 @@ class LibraryFileQuestion(AuditBase):
         "LibraryFile",
         back_populates="questions"
     )
+
+    mistake = relationship(
+        "Mistake",
+        back_populates="library_file_question",
+        cascade="all, delete-orphan"
+    )
+
+
+class PracticeRecord(AuditBase):
+    library_file_id = Column(BigInteger, ForeignKey("library_file.id"), nullable=False)
+
+    total_count = Column(Integer, nullable=False)
+    correct_count = Column(Integer, nullable=False)
+    wrong_count = Column(Integer, nullable=False)
+
+    library_file = relationship(
+        "LibraryFile",
+        back_populates="practice_record",
+    )
+
+class Mistake(AuditBase):
+    library_file_id = Column(BigInteger, ForeignKey("library_file.id"), nullable=False)
+    question_id = Column(BigInteger, ForeignKey("library_file_question.id"), nullable=False)
+
+    wrong_count = Column(Integer, nullable=False)
+
+    library_file = relationship(
+        "LibraryFile",
+        back_populates="mistake",
+    )
+
+    library_file_question = relationship(
+        "LibraryFileQuestion",
+        back_populates="mistake",
+    )