66 lines
2.7 KiB
Python
66 lines
2.7 KiB
Python
"""One persistent persona for all configured chat/agent providers on this AI Core."""
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from contextlib import closing
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from pydantic import BaseModel, ConfigDict, Field
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from app.database.db import connect
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class DialoguePair(BaseModel):
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model_config = ConfigDict(extra="forbid")
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user: str = Field(default="", max_length=8000)
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assistant: str = Field(default="", max_length=8000)
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class PersonaSettings(BaseModel):
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model_config = ConfigDict(extra="forbid")
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version: int = Field(default=0, ge=0)
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name: str = Field(default="", max_length=128)
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system_prompt: str = Field(default="", max_length=16000)
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dialogue_pairs: list[DialoguePair] = Field(default_factory=list, max_length=20)
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def connection():
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conn = connect()
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conn.execute("CREATE TABLE IF NOT EXISTS global_persona (id INTEGER PRIMARY KEY CHECK(id=1), data TEXT NOT NULL)")
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return conn
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def load_persona():
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with closing(connection()) as conn:
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row = conn.execute("SELECT data FROM global_persona WHERE id=1").fetchone()
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return PersonaSettings.model_validate_json(row[0]) if row else PersonaSettings()
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def save_persona(settings):
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from app.errors import ApiError
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with closing(connection()) as conn:
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conn.execute("BEGIN IMMEDIATE")
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try:
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row = conn.execute("SELECT data FROM global_persona WHERE id=1").fetchone()
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current = PersonaSettings.model_validate_json(row[0]) if row else PersonaSettings()
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if current.version != settings.version:
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raise ApiError(409, "PERSONA_VERSION_CONFLICT", "全局人设已被修改，请重新打开表单后保存。")
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updated = settings.model_copy(update={"version": current.version + 1})
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conn.execute("INSERT OR REPLACE INTO global_persona(id,data) VALUES(1,?)", (updated.model_dump_json(),))
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conn.commit()
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return updated
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except BaseException:
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conn.rollback()
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raise
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def apply_global_persona(request):
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settings = load_persona()
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parts = [request.system or ""]
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if settings.system_prompt.strip():
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parts.append("全局人设 / Global persona\n" + settings.system_prompt.strip())
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examples = []
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for pair in settings.dialogue_pairs:
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lines = []
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if pair.user.strip(): lines.append("User: " + pair.user.strip())
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if pair.assistant.strip(): lines.append("Assistant: " + pair.assistant.strip())
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if lines: examples.append("\n".join(lines))
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if examples:
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parts.append("预设对话示例 / Example dialogue\n" + "\n\n".join(examples))
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system = "\n\n".join(part for part in parts if part.strip())
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return request.model_copy(update={"system": system or None})
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