'generate' using xsd no longer treats type derived from xsd:decimal as Decimal

[bkcsfi]

after upgrading from xsdata version 20.11 to 22.11 I have discovered a problem converting an xsd to dataclass defintions

given for example this subset of the xsd file

  <xs:complexType name="chargeType">
    <xs:all>
      <xs:element name="amount" type="monetaryType" minOccurs="1" maxOccurs="1">
        <xs:annotation>
          <xs:documentation>
             The amount of the charge (currently in USD)
          </xs:documentation>
        </xs:annotation>
      </xs:element>
    </xs:all>
  </xs:complexType>
  <xs:simpleType name="monetaryType">
    <xs:annotation>
      <xs:documentation>Cost</xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:decimal">
      <xs:pattern value="\d+\.\d{2}"/>
    </xs:restriction>
  </xs:simpleType>

the python type declaration under 20.11 changed from decimal.Decimal

    amount: Optional[decimal.Decimal] = field(
        default=None,
        metadata={
            "type": "Element",
            "namespace": "",
            "required": True,
            "pattern": r"\d+\.\d{2}",
        }
    )

to str under 22.11

    amount: Optional[str] = field(
        default=None,
        metadata={
            "type": "Element",
            "namespace": "",
            "required": True,
            "pattern": r"\d+\.\d{2}",
        }
    )

Is this an expected change?

thanks

[tefra]

Yeah xsdata can't handle patterns yet, so whenever a pattern is present it resets the type to str,

The pattern is added in the metadata for future reference but it's not used yet, maybe I could add an option to ignore patterns completely?

[tefra]

HI @bkcsfi I added a new option to ignore-patterns,

xsdata schema.xsd --ignore-patterns

https://xsdata.readthedocs.io/en/latest/codegen.html

At some point I really want to do this properly but it's not very easy to translate xsd regex to python