Re: [pyxb-users] Add text to mixed xml elements

[Peter B. <bi...@ac...>]

On Wed, Mar 28, 2012 at 1:51 PM, Dimster <dim...@ya...> wrote:
> Hi,
>
> Is there a way to add text to an element of type MIXED?
>
> Consider:
>
>   <xs:complexType name="IntervalValueType" mixed="true">
>     <xs:sequence>
>       <xs:element name="MinValue" minOccurs="0" maxOccurs="1"
> type="xs:string" />
>       <xs:element name="MaxValue" minOccurs="0" maxOccurs="1"
> type="xs:string" />
>     </xs:sequence>
>   </xs:complexType>
>
> and the corresponding pyxb binding:
>
> # Complex type IntervalValueType with content type MIXED
> class IntervalValueType (pyxb.binding.basis.complexTypeDefinition)
>
> Using the above class, how can I output
>
> <value>5</value>, where value is of IntervalValueType?
>
> I have tried all combinations of constructors and appends but I wasn't able
> to achieve that - I always get
> <value><MinValue>5</MinValue></value>

PyXB's support for mixed content is pretty weak, mostly because
there's no canonical representation (i.e., no way to reconstruct the
proper order of elements and non-element content when converting back
to XML in accordance with the content model).  What's supposed to work
is something like:

 x = ff.IntervalValue(MinValue="one")
 x.append("text", maybe_element=False)
 print x.content()
 print x.toxml()

but although that puts "text" in as mixed content, it doesn't come out again.

PyXB is supposed to spit out all the non-element content in a block
after the element content, but in fact it doesn't (see
pyxb.binding.basis.complexTypeDefinition._toDOM_csc where it walks
over the mixed content doing nothing).

Please file a ticket at https://sourceforge.net/apps/trac/pyxb/ and
I'll look at this.

Peter

> Thanks,
> Dim
>
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