fix(sqlite): use source file path when overriding default datasource

src/prisma/_base_client.py

@@ -228,10 +228,13 @@ def _make_sqlite_datasource(self) -> DatasourceOverride:
         """
         return {
             'name': self._default_datasource['name'],
-            'url': self._make_sqlite_url(self._default_datasource['url']),
+            'url': self._make_sqlite_url(
+                self._default_datasource['url'],
+                relative_to=self._default_datasource.get('source_file_path'),
+            ),
         }
 
-    def _make_sqlite_url(self, url: str, *, relative_to: Path | None = None) -> str:
+    def _make_sqlite_url(self, url: str, *, relative_to: Path | str | None = None) -> str:
         url_path = removeprefix(removeprefix(url, 'file:'), 'sqlite:')
         if url_path == url:
             return url
@@ -242,6 +245,9 @@ def _make_sqlite_url(self, url: str, *, relative_to: Path | None = None) -> str:
         if relative_to is None:
             relative_to = self._schema_path.parent
 
+        if isinstance(relative_to, str):
+            relative_to = Path(relative_to)
+
         return f'file:{relative_to.joinpath(url_path).resolve()}'
 
     def _prepare_connect_args(
@@ -268,10 +274,12 @@ def _prepare_connect_args(
             ds.setdefault('name', self._default_datasource_name)
             datasources = [ds]
         elif self._active_provider == 'sqlite':
+            log.debug('overriding default SQLite datasource path')
             # Override the default SQLite path to protect against
             # https://github.com/RobertCraigie/prisma-client-py/issues/409
             datasources = [self._make_sqlite_datasource()]
 
+        log.debug('datasources %s', datasources)
         return timeout, datasources
 
     def _make_query_builder(

src/prisma/_types.py

@@ -86,6 +86,7 @@ class DatasourceOverride(_DatasourceOverrideOptional):
 
 class _DatasourceOptional(TypedDict, total=False):
     env: str
+    source_file_path: str | None
 
 
 class Datasource(_DatasourceOptional):

src/prisma/generator/models.py

@@ -440,6 +440,8 @@ class Datasource(BaseModel):
     active_provider: str = FieldInfo(alias='activeProvider')
     url: 'OptionalValueFromEnvVar'
 
+    source_file_path: Optional[str] = FieldInfo(alias='sourceFilePath')
+
 
 class Generator(GenericModel, Generic[ConfigT]):
     name: str

src/prisma/generator/templates/client.py.jinja

@@ -108,6 +108,7 @@ class Prisma({% if is_async %}AsyncBasePrisma{% else %}SyncBasePrisma{% endif %}
         return {
             'name': '{{ datasources[0].name }}',
             'url': OptionalValueFromEnvVar(**{{ model_dict(datasources[0].url, by_alias=True) }}).resolve(),
+            'source_file_path': '{{ datasources[0].source_file_path }}',
         }
 
     {% if active_provider != 'mongodb' %}