two version of R2R are hereHEADmaster

1 files changed, 60 insertions, 0 deletions

diff --git a/.venv/lib/python3.12/site-packages/pgvector/django/halfvec.py b/.venv/lib/python3.12/site-packages/pgvector/django/halfvec.py
new file mode 100644
index 00000000..6b59a7fa
--- /dev/null
+++ b/.venv/lib/python3.12/site-packages/pgvector/django/halfvec.py
@@ -0,0 +1,60 @@
+from django import forms
+from django.db.models import Field
+from ..utils import HalfVector
+
+
+# https://docs.djangoproject.com/en/5.0/howto/custom-model-fields/
+class HalfVectorField(Field):
+    description = 'Half vector'
+    empty_strings_allowed = False
+
+    def __init__(self, *args, dimensions=None, **kwargs):
+        self.dimensions = dimensions
+        super().__init__(*args, **kwargs)
+
+    def deconstruct(self):
+        name, path, args, kwargs = super().deconstruct()
+        if self.dimensions is not None:
+            kwargs['dimensions'] = self.dimensions
+        return name, path, args, kwargs
+
+    def db_type(self, connection):
+        if self.dimensions is None:
+            return 'halfvec'
+        return 'halfvec(%d)' % self.dimensions
+
+    def from_db_value(self, value, expression, connection):
+        return HalfVector._from_db(value)
+
+    def to_python(self, value):
+        if value is None or isinstance(value, HalfVector):
+            return value
+        elif isinstance(value, str):
+            return HalfVector._from_db(value)
+        else:
+            return HalfVector(value)
+
+    def get_prep_value(self, value):
+        return HalfVector._to_db(value)
+
+    def value_to_string(self, obj):
+        return self.get_prep_value(self.value_from_object(obj))
+
+    def formfield(self, **kwargs):
+        return super().formfield(form_class=HalfVectorFormField, **kwargs)
+
+
+class HalfVectorWidget(forms.TextInput):
+    def format_value(self, value):
+        if isinstance(value, HalfVector):
+            value = value.to_list()
+        return super().format_value(value)
+
+
+class HalfVectorFormField(forms.CharField):
+    widget = HalfVectorWidget
+
+    def to_python(self, value):
+        if isinstance(value, str) and value == '':
+            return None
+        return super().to_python(value)