1、处理二维码问题

sf_manufacturing/models/stock.py

@@ -3,6 +3,7 @@ import base64
 import qrcode
 from collections import defaultdict, namedtuple
 import logging
+import io
 import json
 from re import split as regex_split
 from re import findall as regex_findall
@@ -709,6 +710,25 @@ class ReStockMove(models.Model):
                                   datetime.now().strftime("%Y%m%d"), origin), 1)
                 move_lines_commands = self._generate_serial_move_line_commands_tool_lot(lot_names)
                 self.write({'move_line_nosuggest_ids': move_lines_commands})
+                for item in self.move_line_nosuggest_ids:
+                    if item.lot_name:
+                        item.lot_qr_code = self.compute_lot_qr_code(item.lot_name)
+
+    def compute_lot_qr_code(self, lot_name):
+        qr = qrcode.QRCode(
+            version=1,
+            error_correction=qrcode.constants.ERROR_CORRECT_L,
+            box_size=10,
+            border=4,
+        )
+        qr.add_data(lot_name)
+        qr.make(fit=True)
+        img = qr.make_image(fill_color="black", back_color="white")
+        buffer = io.BytesIO()
+        img.save(buffer, format="PNG")
+        binary_data = buffer.getvalue()
+        data = base64.b64encode(binary_data).decode()  # 确保返回的是字符串形式的数据
+        return data
 
     def _get_tool_next_serial(self, company, product, origin):
         """Return the next serial number to be attributed to the product."""