Update entity attribute API to support flexible attribute creation

backend/main.py

@@ -1530,8 +1530,11 @@ class AttributeTemplateUpdate(BaseModel):
 
 
 class EntityAttributeSet(BaseModel):
-    template_id: str
-    value: str
+    name: str
+    type: str
+    value: Optional[Union[str, int, float, List[str]]] = None
+    template_id: Optional[str] = None
+    options: Optional[List[str]] = None
     change_reason: Optional[str] = ""
 
 
@@ -1665,31 +1668,82 @@ async def set_entity_attribute_endpoint(entity_id: str, attr: EntityAttributeSet
     if not DB_AVAILABLE:
         raise HTTPException(status_code=500, detail="Database not available")
     
-    from db_manager import EntityAttribute
-    
     db = get_db_manager()
     entity = db.get_entity(entity_id)
     if not entity:
         raise HTTPException(status_code=404, detail="Entity not found")
     
-    # 验证模板存在
-    template = db.get_attribute_template(attr.template_id)
-    if not template:
-        raise HTTPException(status_code=404, detail="Attribute template not found")
+    # 验证类型
+    valid_types = ['text', 'number', 'date', 'select', 'multiselect']
+    if attr.type not in valid_types:
+        raise HTTPException(status_code=400, detail=f"Invalid type. Must be one of: {valid_types}")
     
-    new_attr = EntityAttribute(
-        id=str(uuid.uuid4())[:8],
-        entity_id=entity_id,
-        template_id=attr.template_id,
-        value=attr.value
+    # 处理 value
+    value = attr.value
+    if attr.type == 'multiselect' and isinstance(value, list):
+        value = json.dumps(value)
+    elif value is not None:
+        value = str(value)
+    
+    # 处理 options
+    options = attr.options
+    if options:
+        options = json.dumps(options)
+    
+    # 检查是否已存在
+    conn = db.get_conn()
+    existing = conn.execute(
+        "SELECT * FROM entity_attributes WHERE entity_id = ? AND name = ?",
+        (entity_id, attr.name)
+    ).fetchone()
+    
+    now = datetime.now().isoformat()
+    
+    if existing:
+        # 记录历史
+        conn.execute(
+            """INSERT INTO attribute_history 
+               (id, entity_id, attribute_name, old_value, new_value, changed_by, changed_at, change_reason)
+               VALUES (?, ?, ?, ?, ?, ?, ?, ?)""",
+            (str(uuid.uuid4())[:8], entity_id, attr.name, existing['value'], value,
+             "user", now, attr.change_reason or "")
         )
         
-    db.set_entity_attribute(new_attr, changed_by="user", change_reason=attr.change_reason)
+        # 更新
+        conn.execute(
+            """UPDATE entity_attributes 
+               SET value = ?, type = ?, options = ?, updated_at = ?
+               WHERE id = ?""",
+            (value, attr.type, options, now, existing['id'])
+        )
+        attr_id = existing['id']
+    else:
+        # 创建
+        attr_id = str(uuid.uuid4())[:8]
+        conn.execute(
+            """INSERT INTO entity_attributes 
+               (id, entity_id, template_id, name, type, value, options, created_at, updated_at)
+               VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)""",
+            (attr_id, entity_id, attr.template_id, attr.name, attr.type, value, options, now, now)
+        )
+        
+        # 记录历史
+        conn.execute(
+            """INSERT INTO attribute_history 
+               (id, entity_id, attribute_name, old_value, new_value, changed_by, changed_at, change_reason)
+               VALUES (?, ?, ?, ?, ?, ?, ?, ?)""",
+            (str(uuid.uuid4())[:8], entity_id, attr.name, None, value,
+             "user", now, attr.change_reason or "创建属性")
+        )
+    
+    conn.commit()
+    conn.close()
     
     return {
+        "id": attr_id,
         "entity_id": entity_id,
-        "template_id": attr.template_id,
-        "template_name": template.name,
+        "name": attr.name,
+        "type": attr.type,
         "value": attr.value,
         "success": True
     }