add pos_attribute_image_lazy

pos_attribute_image_lazy/models/__init__.py

@@ -0,0 +1 @@
+from . import pos_session

pos_attribute_image_lazy/models/pos_session.py

@@ -0,0 +1,27 @@
+from odoo import models
+
+
+class PosSession(models.Model):
+    _inherit = "pos.session"
+
+    def _get_attributes_by_ptal_id(self):
+        """Return the attribute values without inlining their image content.
+
+        ``point_of_sale`` reads the ``image`` field of every
+        ``product.attribute.value`` belonging to a ``no_variant`` attribute and
+        ships it, base64 encoded, inside the ``load_pos_data`` response --
+        repeated once per attribute line using that value.
+
+        The POS front end never uses those bytes: the only reader is
+        ``point_of_sale.ColorProductAttribute``, which merely tests the field
+        for truthiness and then renders the swatch from
+        ``/web/image/product.template.attribute.value/<id>/image``.
+
+        Reading with ``bin_size`` makes the ORM return the human readable
+        attachment size (e.g. ``b'827.41 Kb'``) instead of its content, so the
+        attachment is never loaded into memory. The value stays truthy, which
+        keeps the swatch rendering identical.
+        """
+        return super(
+            PosSession, self.with_context(bin_size=True)
+        )._get_attributes_by_ptal_id()