fix: 修正PDI表查询使用完整表名PLTM.PDI_PLTM

feat(api): 新增钢种查询接口和下一编号获取接口

backend/main.py

@@ -96,7 +96,7 @@ def list_pdi(
 
         where = ("WHERE " + " AND ".join(conditions)) if conditions else ""
 
-        count_sql = f"SELECT COUNT(*) FROM PDI_PLTM {where}"
+        count_sql = f"SELECT COUNT(*) FROM PLTM.PDI_PLTM {where}"
         cursor.execute(count_sql, params)
         total = cursor.fetchone()[0]
 
@@ -120,7 +120,7 @@ def list_pdi(
                            LOOPER_TENSION_1, PL_TENSION,
                            LOOPER_TENSION_2, LOOPER_TENSION_3,
                            DUMMY_COIL_MRK, CUT_MODE, TRIMMING, TRIMMING_WIDTH
-                    FROM PDI_PLTM {where}
+                    FROM PLTM.PDI_PLTM {where}
                     ORDER BY COILID DESC
                 ) a WHERE ROWNUM <= :end_row
             ) WHERE rn > :start_row
@@ -145,7 +145,7 @@ def get_pdi(coilid: str):
     conn = get_connection()
     cursor = conn.cursor()
     try:
-        cursor.execute("SELECT * FROM PDI_PLTM WHERE COILID = :coilid", {"coilid": coilid})
+        cursor.execute("SELECT * FROM PLTM.PDI_PLTM WHERE COILID = :coilid", {"coilid": coilid})
         columns = [col[0].lower() for col in cursor.description]
         row = cursor.fetchone()
         if not row:
@@ -168,7 +168,7 @@ def create_pdi(data: PDIPLTMCreate):
         fields = {k: v for k, v in data.model_dump(exclude_none=True).items()}
         cols = ", ".join(f.upper() for f in fields.keys())
         vals = ", ".join([f":{k}" for k in fields.keys()])
-        sql = f"INSERT INTO PDI_PLTM ({cols}) VALUES ({vals})"
+        sql = f"INSERT INTO PLTM.PDI_PLTM ({cols}) VALUES ({vals})"
         cursor.execute(sql, fields)
         conn.commit()
         # Mirror to SQLite
@@ -197,7 +197,7 @@ def update_pdi(coilid: str, data: PDIPLTMUpdate):
             raise HTTPException(status_code=400, detail="无更新字段")
         set_clause = ", ".join([f"{k.upper()} = :{k}" for k in fields.keys()])
         fields["coilid_"] = coilid
-        sql = f"UPDATE PDI_PLTM SET {set_clause} WHERE COILID = :coilid_"
+        sql = f"UPDATE PLTM.PDI_PLTM SET {set_clause} WHERE COILID = :coilid_"
         cursor.execute(sql, fields)
         if cursor.rowcount == 0:
             raise HTTPException(status_code=404, detail="记录不存在")
@@ -233,7 +233,7 @@ def delete_pdi(coilid: str):
     conn = get_connection()
     cursor = conn.cursor()
     try:
-        cursor.execute("DELETE FROM PDI_PLTM WHERE COILID = :coilid", {"coilid": coilid})
+        cursor.execute("DELETE FROM PLTM.PDI_PLTM WHERE COILID = :coilid", {"coilid": coilid})
         if cursor.rowcount == 0:
             raise HTTPException(status_code=404, detail="记录不存在")
         conn.commit()
@@ -328,3 +328,123 @@ async def restart_opc():
     await opc_service.stop_polling()
     asyncio.create_task(opc_service.start_polling())
     return {"message": "OPC服务已重启"}
+
+
+# ─────────────────────────────────────────────
+# 钢种查询接口 (为酸洗提供选择)
+# ─────────────────────────────────────────────
+
+@app.get("/api/grades/entry")
+def get_entry_grades():
+    """获取来料钢种列表 - 来自 PL_BM_WELD_MACHINE.ALLOY_ID"""
+    conn = get_connection()
+    cursor = conn.cursor()
+    try:
+        cursor.execute("""
+            SELECT DISTINCT ALLOY_ID 
+            FROM PL_BM_WELD_MACHINE 
+            WHERE ALLOY_ID IS NOT NULL AND TRIM(ALLOY_ID) <> ''
+            ORDER BY ALLOY_ID
+        """)
+        grades = [row[0] for row in cursor.fetchall()]
+        return grades
+    except Exception as e:
+        logger.warning("获取来料钢种失败: %s", e)
+        return []
+    finally:
+        cursor.close()
+        conn.close()
+
+
+@app.get("/api/grades/product")
+def get_product_grades():
+    """获取成品钢种列表 - 来自 L3_GRADE.L3_GRADE"""
+    conn = get_connection()
+    cursor = conn.cursor()
+    try:
+        cursor.execute("""
+            SELECT DISTINCT L3_GRADE 
+            FROM L3_GRADE 
+            WHERE L3_GRADE IS NOT NULL AND TRIM(L3_GRADE) <> ''
+            ORDER BY L3_GRADE
+        """)
+        grades = [row[0] for row in cursor.fetchall()]
+        return grades
+    except Exception as e:
+        logger.warning("获取成品钢种失败: %s", e)
+        return []
+    finally:
+        cursor.close()
+        conn.close()
+
+
+@app.get("/api/grades/l2model")
+def get_l2_model_grades():
+    """获取二级模型钢种列表 - 来自 L3_GRADE.L2_GRADE"""
+    conn = get_connection()
+    cursor = conn.cursor()
+    try:
+        cursor.execute("""
+            SELECT DISTINCT L2_GRADE 
+            FROM L3_GRADE 
+            WHERE L2_GRADE IS NOT NULL AND TRIM(L2_GRADE) <> ''
+            ORDER BY L2_GRADE
+        """)
+        grades = [row[0] for row in cursor.fetchall()]
+        return grades
+    except Exception as e:
+        logger.warning("获取二级模型钢种失败: %s", e)
+        return []
+    finally:
+        cursor.close()
+        conn.close()
+
+
+@app.get("/api/pdi/next-numbers")
+def get_next_numbers():
+    """
+    获取下一个可用的批次编号和顺序号
+    - 批次编号格式: 年月日(6位) + 批次顺序(3位)，如 260406001
+    - 顺序号: 当前批次内的最大顺序号+1
+    """
+    import datetime
+    conn = get_connection()
+    cursor = conn.cursor()
+    try:
+        today = datetime.datetime.now().strftime("%y%m%d")
+        today_prefix = int(today) * 1000  # 如 260406000
+        
+        # 获取今天最大的批次编号
+        cursor.execute("""
+            SELECT MAX(ROLLPROGRAMNB) 
+            FROM PLTM.PDI_PLTM 
+            WHERE ROLLPROGRAMNB >= :min_val AND ROLLPROGRAMNB < :max_val
+        """, {"min_val": today_prefix, "max_val": today_prefix + 1000})
+        row = cursor.fetchone()
+        max_today_batch = row[0] if row[0] else today_prefix
+        
+        # 计算下一个批次编号
+        next_batch = max_today_batch + 1
+        
+        # 获取当前批次的最大顺序号
+        cursor.execute("""
+            SELECT MAX(SEQUENCENB) 
+            FROM PLTM.PDI_PLTM 
+            WHERE ROLLPROGRAMNB = :batch
+        """, {"batch": next_batch})
+        row = cursor.fetchone()
+        max_sequence = row[0] if row[0] else 0
+        next_sequence = max_sequence + 1
+        
+        return {
+            "rollprogramnb": next_batch,
+            "sequencenb": next_sequence,
+            "batch_date": today,
+            "max_batch_today": max_today_batch if max_today_batch > today_prefix else None
+        }
+    except Exception as e:
+        logger.warning("获取下一编号失败: %s", e)
+        return {"rollprogramnb": None, "sequencenb": 1}
+    finally:
+        cursor.close()
+        conn.close()