order of repeating xml tags

[morskibg]

Hello, great work !
I have a little issue (sorry if had been discussed). The schema states:

<xs:complexType name="MSCONS">
		<xs:sequence>
			<xs:element name="UNH" type="UNH" minOccurs="1" maxOccurs="1"/>
			<xs:element name="BGM" type="BGM" minOccurs="1" maxOccurs="1"/>
			<xs:element name="DTM" type="DTM" minOccurs="1" maxOccurs="1"/>
			<xs:element name="NAD" type="NAD" minOccurs="2" maxOccurs="2"/>
			<xs:element name="UNS" type="UNS" minOccurs="1" maxOccurs="1"/>
			<xs:element name="NAD" type="NAD" minOccurs="1" maxOccurs="1"/>
			<xs:element name="UNT" type="UNT" minOccurs="1" maxOccurs="1"/>
		</xs:sequence>
</xs:complexType>

final created class is:

@dataclass
class Mscons:
    """
    Metered services consumption report message.
    """
    class Meta:
        name = "MSCONS"

    unh: Optional[Unh] = field(
        default=None,
        metadata={
            "name": "UNH",
            "type": "Element",
            "required": True,
        }
    )
    bgm: Optional[Bgm] = field(
        default=None,
        metadata={
            "name": "BGM",
            "type": "Element",
            "required": True,
        }
    )
    dtm: Optional[Dtm] = field(
        default=None,
        metadata={
            "name": "DTM",
            "type": "Element",
            "required": True,
        }
    )
    nad: List[Nad] = field(
        default_factory=list,
        metadata={
            "name": "NAD",
            "type": "Element",
            "min_occurs": 1,
            "max_occurs": 2,
        }
    )
    uns: Optional[Uns] = field(
        default=None,
        metadata={
            "name": "UNS",
            "type": "Element",
            "required": True,
        }
    )
    unt: Optional[Unt] = field(
        default=None,
        metadata={
            "name": "UNT",
            "type": "Element",
            "required": True,
        }
    )

The XML file for parsing is:

<?xml version="1.0" encoding="UTF-8"?>
<MSCONS xsi:noNamespaceSchemaLocation ="MSCONS_890_v1.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<UNH>
		<REFERENCENUMBER>1</REFERENCENUMBER>
		<IDENTIFIER>MSCONS</IDENTIFIER>
		<VERSIONNUMBER>D</VERSIONNUMBER>
		<RELEASENUMBER>1xx</RELEASENUMBER> 
		<CONTROLAGENCY>Udd</CONTROLAGENCY>
		<ASSOCCODE>xxxxx</ASSOCCODE>
	</UNH>
	<BGM>
		<NAME>890</NAME>
		<CODELISTAGENCY>esdf</CODELISTAGENCY>
		<DOCUMENTNUMBER>faaf173d-3e44-4e231-8c15-8e8634566789f</DOCUMENTNUMBER>
		<DOCUMENTFUNC>9</DOCUMENTFUNC>
		<RESPONSETYPE>NA</RESPONSETYPE>
	</BGM>
	<DTM>
		<DATUMQUALIFIER>137</DATUMQUALIFIER>
		<DATUM>201908121200+03</DATUM>
		<FORMAT>303</FORMAT>
	</DTM>
	<NAD>
		<ACTION>MS</ACTION>
		<PARTNER>sdewertxx</PARTNER>
		<CODELISTAGENCY>305</CODELISTAGENCY>
		<COUNTRY>GG</COUNTRY>
	</NAD>
	<NAD>
		<ACTION>MR</ACTION>
		<PARTNER>ddddddddd</PARTNER>
		<CODELISTAGENCY>305</CODELISTAGENCY>
		<COUNTRY>mm</COUNTRY>
	</NAD>
	<UNS>
		<SECTION_ID>D</SECTION_ID>
	</UNS>
	<NAD>
		<ACTION>GN</ACTION>
		<PARTNER>dfrterffff</PARTNER>
		<CODELISTAGENCY>305</CODELISTAGENCY>
		<COUNTRY>mm</COUNTRY>
		<LOC>
			<PLACE_QUALIFIER>172</PLACE_QUALIFIER>
			<PLACE_ID>wertyfghj</PLACE_ID>
			<CODE_LIST_RESPONSIBLE_AGENCY>ff</CODE_LIST_RESPONSIBLE_AGENCY>			
		</LOC>
	</NAD>
	<UNT>
		<NUMSEG>17</NUMSEG>
		<REFNUM>1</REFNUM>
	</UNT>
</MSCONS>

After parsing the segment:

<UNS>
     <SECTION_ID>D</SECTION_ID>
</UNS>"

is after 3 NAD, instead to be between 2 and 3 NAD segment
Is there any option to rearrange such a case?
Thank You !

[tefra]

I call this case an effective choice of a elements or repeating elements.

If the elements were part of a xs:choice and you used the --compound-fields option of the cli

<xsd:complexType name="MSCONS">
		<xsd:choice maxOccurs="unbounded">
			<xsd:element name="UNH" type="xsd:string" minOccurs="1" maxOccurs="1"/>
			<xsd:element name="BGM" type="xsd:string" minOccurs="1" maxOccurs="1"/>
			<xsd:element name="DTM" type="xsd:string" minOccurs="1" maxOccurs="1"/>
			<xsd:element name="NAD" type="xsd:string" minOccurs="2" maxOccurs="2"/>
			<xsd:element name="UNS" type="xsd:string" minOccurs="1" maxOccurs="1"/>
			<xsd:element name="NAD" type="xsd:string" minOccurs="1" maxOccurs="1"/>
			<xsd:element name="UNT" type="xsd:string" minOccurs="1" maxOccurs="1"/>
		</xsd:choice>
</xsd:complexType>

You would get a model like this

@dataclass
class Mscons:
    class Meta:
        name = "MSCONS"

    choice: List[object] = field(
        default_factory=list,
        metadata={
            "type": "Elements",
            "choices": (
                {
                    "name": "UNH",
                    "type": str,
                    "namespace": "",
                },
                {
                    "name": "BGM",
                    "type": str,
                    "namespace": "",
                },
                {
                    "name": "DTM",
                    "type": str,
                    "namespace": "",
                },
                {
                    "name": "NAD",
                    "type": str,
                    "namespace": "",
                },
                {
                    "name": "UNS",
                    "type": str,
                    "namespace": "",
                },
                {
                    "name": "UNT",
                    "type": str,
                    "namespace": "",
                },
            ),
        }
    )

That model can ensure the input/output ordering of elements. But for now no it's not possible with xs:sequence elements.

It's on my todo list for some time now though, I am going to prioritize this one.

[morskibg]

Thank You ! Will waiting.

[tefra]

The change is master @morskibg give it a try, it should catch most of the cases now

For the above example the generator will now create with the flag --compound-fields true the following model

@dataclass
class Mscons:
    class Meta:
        name = "MSCONS"

    unh: Optional[str] = field(
        default=None,
        metadata={
            "name": "UNH",
            "type": "Element",
            "namespace": "",
            "required": True,
        }
    )
    bgm: Optional[str] = field(
        default=None,
        metadata={
            "name": "BGM",
            "type": "Element",
            "namespace": "",
            "required": True,
        }
    )
    dtm: Optional[str] = field(
        default=None,
        metadata={
            "name": "DTM",
            "type": "Element",
            "namespace": "",
            "required": True,
        }
    )
    nad_or_uns_or_unt: List[object] = field(
        default_factory=list,
        metadata={
            "type": "Elements",
            "choices": (
                {
                    "name": "NAD",
                    "type": str,
                    "namespace": "",
                },
                {
                    "name": "UNS",
                    "type": str,
                    "namespace": "",
                },
                {
                    "name": "UNT",
                    "type": str,
                    "namespace": "",
                },
            ),
            "min_occurs": 3,
            "max_occurs": 5,
        }
    )

[morskibg]

Work as a charm !!! Thank You very much !