XML Schema invalid - [s4s-elt-invalid-content.1:]

Question

I'm having problems with validing my XML Schema. My schema kod:

<?xml version="1.0" encoding="utf-8"?>

        <xsd:element name="colection">
            <xsd:complexType>
                <xsd:sequence>
                    <xsd:element name="author" type="TypAuthor" maxOccurs="1"/>
                    <xsd:element name="books" type="TypBooks"/>
                    <xsd:element name="films" type="TypFilms"/>
                    <xsd:element name="copyright" type="xsd:string"/>
                </xsd:sequence>
            </xsd:complexType>
        </xsd:element>

        <xsd:complexType name="TypAuthor">
            <xsd:sequence>
                <xsd:element name="name" type="xsd:string" maxOccurs="1"/>
                <xsd:element name="surname" type="xsd:string"/>
                <xsd:element name="gender" type="TypSex"/>
                <xsd:element name="age" type="xsd:integer"/>
                <xsd:element name="city" type="xsd:string"/>
                <xsd:element name="country" type="xsd:string"/>
                <xsd:element name="study" type="xsd:string"/>
                <xsd:element name="semester" type="xsd:integer"/>
                <xsd:element name="group" type="xsd:string"/>
            </xsd:sequence>
        </xsd:complexType>

        <xsd:simpleType name="TypSex">
            <xsd:restriction base="xsd:string">
                <xsd:enumeration value="male"/>
                <xsd:enumeration value="female"/>
            </xsd:restriction>
        </xsd:simpleType>

        <xsd:complexType name="TypBooks">
            <xsd:sequence>
                <xsd:element name="book" type="TypBook" minOccurs="5" maxOccurs="unbounded"/>
            </xsd:sequence>
        </xsd:complexType>

        <xsd:complexType name="TypBook">
            <xsd:attribute name="nr" type="TypNr" />
            <xsd:attribute name= "lang" type="TypLang"/>
            <xsd:sequence>
                <xsd:element name="title" type="xsd:string"/>
                <xsd:element name="author" type="TypAuthor2"/>
                <xsd:element name="genre" type="xsd:string"/>
                <xsd:element name="pages" type="xsd:integer"/>
                <xsd:element name="year" type="xsd:integer"/>
            </xsd:sequence>
        </xsd:complexType>

        <xsd:complexType name="TypAuthor2">
            <xsd:simpleContent>
                <xsd:extension base="xsd:string">
                        <xsd:attribute name="country" type="TypCountry2" use="required"/>
                </xsd:extension>
            </xsd:simpleContent>    
        </xsd:complexType>


        <xsd:simpleType name="TypCountry2">
            <xsd:restriction base="xsd:string">
                <xsd:enumeration value="USA"/>
                <xsd:enumeration value="PL"/>
                <xsd:enumeration value="UK"/>
                <xsd:enumeration value="FR"/>
            </xsd:restriction>
        </xsd:simpleType>

        <xsd:simpleType name="TypNr">
            <xsd:restriction base="xsd:integer">
                <xsd:maxInclusive value="5"/>
            </xsd:restriction>
        </xsd:simpleType>

        <xsd:simpleType name="TypLang">
            <xsd:restriction base="xsd:string">
                <xsd:enumeration value="pl"/>
                <xsd:enumeration value="en"/>
                <xsd:enumeration value="fr"/>
            </xsd:restriction>
        </xsd:simpleType>

        <xsd:complexType name="TypFilms">
            <xsd:sequence>
                <xsd:element name="film" type="TypFilm" minOccurs="5" maxOccurs="unbounded"/>
            </xsd:sequence>
        </xsd:complexType>

        <xsd:complexType name="TypFilm">
            <xsd:attribute name="nr" type="TypNr" />
            <xsd:attribute name= "lang" type="TypLang"/>
            <xsd:sequence>
                <xsd:element name="title" type="xsd:string"/>
                <xsd:element name="director" type="TypDirector"/>
                <xsd:element name="year" type="xsd:integer"/>
                <xsd:element name="genre" type="xsd:string"/>
                <xsd:element name="stars" type="xsd:string"/>
            </xsd:sequence>
        </xsd:complexType>
        <xsd:complexType name="TypDirector">
            <xsd:simpleContent>
                <xsd:extension base="xsd:string">
                        <xsd:attribute name="country" type="TypCountry2" use="required"/>
                </xsd:extension>
            </xsd:simpleContent>
        </xsd:complexType>

The error message I'm getting is this:

s4s-elt-invalid-content.1: The content of 'TypBook' is invalid. Element 'complexContent' is invalid, misplaced, or occurs too often.

s4s-elt-invalid-content.1: The content of 'TypFilm' is invalid. Element 'complexContent' is invalid, misplaced, or occurs too often.

Do you have any suggestion? I need to send this valid schema to my Profesor before 11pm. Please HELP!!

Many thanks

Solution 1

It's a very poor error message, but as Larsson says, the attributes must be defined after the content.

If you can't find a rule like this in the prose of the spec, it's probably in the schema for schema documents, which is a normative part of the spec.

Solution 2

I think your problem is due to the sequence coming before the attributes, try this: I did spend a couple of minutes trying too google a source for this rule but did not find much. However at the w3Shools complex type docs the syntax is specified with attributes last. Not very explicit though.

<?xml version="1.0" encoding="utf-8"?>
<xsd:schema id="XMLSchema1"
    targetNamespace="http://tempuri.org/XMLSchema1.xsd"
    elementFormDefault="qualified"
    xmlns="http://tempuri.org/XMLSchema1.xsd"
    xmlns:mstns="http://tempuri.org/XMLSchema1.xsd"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
>
  <xsd:element name="colection">
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element name="author" type="TypAuthor" maxOccurs="1"/>
        <xsd:element name="books" type="TypBooks"/>
        <xsd:element name="films" type="TypFilms"/>
        <xsd:element name="copyright" type="xsd:string"/>
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>

  <xsd:complexType name="TypAuthor">
    <xsd:sequence>
      <xsd:element name="name" type="xsd:string" maxOccurs="1"/>
      <xsd:element name="surname" type="xsd:string"/>
      <xsd:element name="gender" type="TypSex"/>
      <xsd:element name="age" type="xsd:integer"/>
      <xsd:element name="city" type="xsd:string"/>
      <xsd:element name="country" type="xsd:string"/>
      <xsd:element name="study" type="xsd:string"/>
      <xsd:element name="semester" type="xsd:integer"/>
      <xsd:element name="group" type="xsd:string"/>
    </xsd:sequence>
  </xsd:complexType>

  <xsd:simpleType name="TypSex">
    <xsd:restriction base="xsd:string">
      <xsd:enumeration value="male"/>
      <xsd:enumeration value="female"/>
    </xsd:restriction>
  </xsd:simpleType>

  <xsd:complexType name="TypBooks">
    <xsd:sequence>
      <xsd:element name="book" type="TypBook" minOccurs="5" maxOccurs="unbounded"/>
    </xsd:sequence>
  </xsd:complexType>

  <xsd:complexType name="TypBook">
    <xsd:sequence>
      <xsd:element name="title" type="xsd:string"/>
      <xsd:element name="author" type="TypAuthor2"/>
      <xsd:element name="genre" type="xsd:string"/>
      <xsd:element name="pages" type="xsd:integer"/>
      <xsd:element name="year" type="xsd:integer"/>
    </xsd:sequence>
    <xsd:attribute name="nr" type="TypNr" />
    <xsd:attribute name= "lang" type="TypLang"/>
  </xsd:complexType>

  <xsd:complexType name="TypAuthor2">
    <xsd:simpleContent>
      <xsd:extension base="xsd:string">
        <xsd:attribute name="country" type="TypCountry2" use="required"/>
      </xsd:extension>
    </xsd:simpleContent>
  </xsd:complexType>


  <xsd:simpleType name="TypCountry2">
    <xsd:restriction base="xsd:string">
      <xsd:enumeration value="USA"/>
      <xsd:enumeration value="PL"/>
      <xsd:enumeration value="UK"/>
      <xsd:enumeration value="FR"/>
    </xsd:restriction>
  </xsd:simpleType>

  <xsd:simpleType name="TypNr">
    <xsd:restriction base="xsd:integer">
      <xsd:maxInclusive value="5"/>
    </xsd:restriction>
  </xsd:simpleType>

  <xsd:simpleType name="TypLang">
    <xsd:restriction base="xsd:string">
      <xsd:enumeration value="pl"/>
      <xsd:enumeration value="en"/>
      <xsd:enumeration value="fr"/>
    </xsd:restriction>
  </xsd:simpleType>

  <xsd:complexType name="TypFilms">
    <xsd:sequence>
      <xsd:element name="film" type="TypFilm" minOccurs="5" maxOccurs="unbounded"/>
    </xsd:sequence>
  </xsd:complexType>

  <xsd:complexType name="TypFilm">
    <xsd:sequence>
      <xsd:element name="title" type="xsd:string"/>
      <xsd:element name="director" type="TypDirector"/>
      <xsd:element name="year" type="xsd:integer"/>
      <xsd:element name="genre" type="xsd:string"/>
      <xsd:element name="stars" type="xsd:string"/>
    </xsd:sequence>
    <xsd:attribute name="nr" type="TypNr" />
    <xsd:attribute name= "lang" type="TypLang"/>
  </xsd:complexType>
  <xsd:complexType name="TypDirector">
    <xsd:simpleContent>
      <xsd:extension base="xsd:string">
        <xsd:attribute name="country" type="TypCountry2" use="required"/>
      </xsd:extension>
    </xsd:simpleContent>
  </xsd:complexType>
</xsd:schema>