Add pattern support to param

ninja/params/__init__.py

@@ -1,4 +1,4 @@
-from typing import TYPE_CHECKING, Any, Callable, Dict, Optional, TypeVar
+from typing import TYPE_CHECKING, Any, Callable, Dict, Optional, Pattern, TypeVar, Union
 
 from typing_extensions import Annotated
 
@@ -86,7 +86,7 @@ def P(
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -104,7 +104,7 @@ def P(
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,

ninja/params/functions.py

@@ -3,7 +3,7 @@
 # what it basically does makes function XXX that create instance of models.XXX
 # and annotates function with result = Any
 # idea from https://github.com/tiangolo/fastapi/blob/master/fastapi/param_functions.py
-from typing import Any, Dict, Optional
+from typing import Any, Dict, Optional, Pattern, Union
 
 from ninja.params import models
 
@@ -20,7 +20,7 @@ def Path(  # noqa: N802
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -38,7 +38,7 @@ def Path(  # noqa: N802
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,
@@ -59,7 +59,7 @@ def Query(  # noqa: N802
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -77,7 +77,7 @@ def Query(  # noqa: N802
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,
@@ -98,7 +98,7 @@ def Header(  # noqa: N802
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -116,7 +116,7 @@ def Header(  # noqa: N802
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,
@@ -137,7 +137,7 @@ def Cookie(  # noqa: N802
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -155,7 +155,7 @@ def Cookie(  # noqa: N802
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,
@@ -176,7 +176,7 @@ def Body(  # noqa: N802
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -194,7 +194,7 @@ def Body(  # noqa: N802
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,
@@ -215,7 +215,7 @@ def Form(  # noqa: N802
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -233,7 +233,7 @@ def Form(  # noqa: N802
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,
@@ -254,7 +254,7 @@ def File(  # noqa: N802
     le: Optional[float] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
-    regex: Optional[str] = None,
+    pattern: Union[str, Pattern[str], None] = None,
     example: Any = None,
     examples: Optional[Dict[str, Any]] = None,
     deprecated: Optional[bool] = None,
@@ -272,7 +272,7 @@ def File(  # noqa: N802
         le=le,
         min_length=min_length,
         max_length=max_length,
-        regex=regex,
+        pattern=pattern,
         example=example,
         examples=examples,
         deprecated=deprecated,

ninja/params/models.py

@@ -1,6 +1,17 @@
 from abc import ABC, abstractmethod
 from collections import defaultdict
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple, Type, TypeVar
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Dict,
+    List,
+    Optional,
+    Pattern,
+    Tuple,
+    Type,
+    TypeVar,
+    Union,
+)
 
 from django.conf import settings
 from django.http import HttpRequest
@@ -204,6 +215,7 @@ def __init__(
         examples: Optional[Dict[str, Any]] = None,
         deprecated: Optional[bool] = None,
         include_in_schema: Optional[bool] = True,
+        pattern: Union[str, Pattern[str], None] = None,
         # param_name: str = None,
         # param_type: Any = None,
         **extra: Any,
@@ -237,6 +249,7 @@ def __init__(
             le=le,
             min_length=min_length,
             max_length=max_length,
+            pattern=pattern,
             json_schema_extra=json_schema_extra,
             **extra,
         )

tests/main.py

@@ -135,6 +135,11 @@ def get_path_param_le_ge_int(request, item_id: int = Path(..., le=3, ge=1)):
     return item_id
 
 
+@router.get("/path/param-pattern/{item_id}")
+def get_path_param_pattern(request, item_id: str = Path(..., pattern="^foo")):
+    return item_id
+
+
 @router.get("/path/param-django-str/{str:item_id}")
 def get_path_param_django_str(request, item_id):
     return item_id

tests/test_path.py

@@ -172,6 +172,20 @@ def test_text_get():
 }
 
 
+response_not_valid_pattern = {
+    "detail": [
+        {
+            "ctx": {
+                "pattern": "^foo",
+            },
+            "loc": ["path", "item_id"],
+            "msg": "String should match pattern '^foo'",
+            "type": "string_pattern_mismatch",
+        }
+    ]
+}
+
+
 @pytest.mark.parametrize(
     "path,expected_status,expected_response",
     [
@@ -249,6 +263,8 @@ def test_text_get():
         ("/path/param-le-ge-int/3", 200, 3),
         ("/path/param-le-ge-int/4", 422, response_less_than_equal_3),
         ("/path/param-le-ge-int/2.7", 422, response_not_valid_int_float),
+        ("/path/param-pattern/foo", 200, "foo"),
+        ("/path/param-pattern/fo", 422, response_not_valid_pattern),
     ],
 )
 def test_get_path(path, expected_status, expected_response):