Replace field validators with pydantic tooling

app/schemas.py

@@ -1,4 +1,3 @@
-import re
 from datetime import date
 from datetime import datetime
 
@@ -22,33 +21,20 @@ class UserBase(BaseModel):
 class PriceCreate(BaseModel):
     model_config = ConfigDict(from_attributes=True, arbitrary_types_allowed=True)
 
-    product_code: str = Field(min_length=1)
+    product_code: str = Field(min_length=1, pattern="^[0-9]+$")
     price: float
     currency: str | Currency
-    location_osm_id: int
+    location_osm_id: int = Field(gt=0)
     location_osm_type: PriceLocationOSMType
     date: date
 
-    @field_validator("product_code")
-    def product_code_must_be_only_numbers(cls, v):
-        regex = r"^[0-9]+$"
-        if not re.match(regex, v):
-            raise ValueError("must only contain numbers")
-        return v
-
     @field_validator("currency")
     def currency_is_valid(cls, v):
         try:
             return Currency(v).code
         except ValueError:
             raise ValueError("not a valid currency code")
 
-    @field_validator("location_osm_id")
-    def location_osm_id_must_be_positive(cls, v):
-        if v <= 0:
-            raise ValueError("must be positive")
-        return v
-
     @field_serializer("currency")
     def serialize_currency(self, currency: Currency, _info):
         if type(currency) is Currency: