71 lines
3.1 KiB
Python
71 lines
3.1 KiB
Python
from datetime import datetime, timezone
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from sqlalchemy.dialects.mysql import LONGTEXT
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from backend import db
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class User(db.Model):
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__tablename__ = "users"
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id = db.Column(db.BigInteger, primary_key=True, autoincrement=True)
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username = db.Column(db.String(50), unique=True, nullable=False)
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password = db.Column(db.String(255), nullable=False)
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phone = db.Column(db.String(20))
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conversations = db.relationship("Conversation", backref="user", lazy="dynamic",
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cascade="all, delete-orphan",
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order_by="Conversation.updated_at.desc()")
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class Conversation(db.Model):
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__tablename__ = "conversations"
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id = db.Column(db.String(64), primary_key=True)
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user_id = db.Column(db.BigInteger, db.ForeignKey("users.id"), nullable=False)
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title = db.Column(db.String(255), nullable=False, default="")
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model = db.Column(db.String(64), nullable=False, default="glm-5")
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system_prompt = db.Column(db.Text, default="")
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temperature = db.Column(db.Float, nullable=False, default=1.0)
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max_tokens = db.Column(db.Integer, nullable=False, default=65536)
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thinking_enabled = db.Column(db.Boolean, default=False)
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created_at = db.Column(db.DateTime, default=lambda: datetime.now(timezone.utc))
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updated_at = db.Column(db.DateTime, default=lambda: datetime.now(timezone.utc), onupdate=lambda: datetime.now(timezone.utc))
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messages = db.relationship("Message", backref="conversation", lazy="dynamic",
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cascade="all, delete-orphan",
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order_by="Message.created_at.asc()")
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class Message(db.Model):
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__tablename__ = "messages"
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id = db.Column(db.String(64), primary_key=True)
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conversation_id = db.Column(db.String(64), db.ForeignKey("conversations.id"), nullable=False)
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role = db.Column(db.String(16), nullable=False) # user, assistant, system, tool
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content = db.Column(db.Text, default="")
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token_count = db.Column(db.Integer, default=0)
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thinking_content = db.Column(db.Text, default="")
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# Tool call support
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tool_calls = db.Column(LONGTEXT) # JSON string: tool call requests (assistant messages)
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tool_call_id = db.Column(db.String(64)) # Tool call ID (tool messages)
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name = db.Column(db.String(64)) # Tool name (tool messages)
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created_at = db.Column(db.DateTime, default=lambda: datetime.now(timezone.utc))
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class TokenUsage(db.Model):
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__tablename__ = "token_usage"
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id = db.Column(db.BigInteger, primary_key=True, autoincrement=True)
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user_id = db.Column(db.BigInteger, db.ForeignKey("users.id"), nullable=False)
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date = db.Column(db.Date, nullable=False) # 使用日期
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model = db.Column(db.String(64), nullable=False) # 模型名称
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prompt_tokens = db.Column(db.Integer, default=0)
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completion_tokens = db.Column(db.Integer, default=0)
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total_tokens = db.Column(db.Integer, default=0)
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created_at = db.Column(db.DateTime, default=lambda: datetime.now(timezone.utc))
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__table_args__ = (
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db.UniqueConstraint("user_id", "date", "model", name="uq_user_date_model"),
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)
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