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Man Pages
OODoc::Meta(3) User Contributed Perl Documentation OODoc::Meta(3)

OpenOffice::OODoc::Meta - Access to document metadata

The OpenOffice::OODoc::Meta class is a specialist derivative of OpenOffice::OODoc::XPath for XML members which describe the metadata of ODF documents.

Constructor : OpenOffice::OODoc::Meta->new(<parameters>)

        Short Form: odfMeta(<parameters>)

        See OpenOffice::OODoc::XPath->new (or odfXPath)

        Returns an OpenDocument connector allowing subsequent access to
        the metadata of a well-formed, ODF-compliant document.
        
        The XML member loaded by default is 'meta.xml'.

        Example:

            $my meta    = odfMeta(file => 'document.odt');

        returns a new object which represents the metadata of the
        ODF document "document.odt".

addKeyword(text)

        Adds the given text to the list of document keywords if not already
        found.

        Example:

            $meta->addKeyword("document management");
            $meta->addKeyword("office");
            $meta->addKeyword("tech watch");

creation_date()

        Without argument, returns the document's creation date in
        ISO-8601 format (i.e. the ODF-compliant date format).

        Example of returned value:

            2008-11-12T08:22:50

        The returned value can be converted in standard numeric time format
        with the ooTimelocal() function.

        With argument, inserts the given string (without checking) as the
        creation date. The argument, if any, must comply with the ODF
        (ISO-8601) date format. The ooLocaltime() function can be used in
        order to convert a regular Perl time() value in ODF.

        A conventional editing software should never changes this value, but
        this method allows the user to read or write it.

        See also date().

creator()

        Without argument, returns the document creator's name. The creator
        is generally the author of the last update. See also initial_creator().

        With argument, modifies the document author's name.

date()

        Without argument, returns the document's date of last modification,
        in ISO-8601 format.

        With argument, inserts the given string (without checking) as the
        last modification date. The argument, if any, must comply with the
        ODF date format (ISO-8601). The odfLocaltime() function can be used
        in order to convert a regular Perl time() value in ODF format.

        The returned value can be converted in standard numeric time format
        with the ooTimelocal() function.

description()

        Without argument, returns the contents of the document properties
        "Description" field.

        With argument, inserts the given text in the "Description" field.

editing_cycles()

        Without argument, returns the number of edit sessions (i.e. saves,
        under an ODF-compliant editing software). Or, technically, the number
        of versions.

        With argument, modifies this number without checking.
        
        See also increment_editing_cycles().

editing_duration()

        Without argument, returns the total editing time for the document,
        in ISO-8601 date/time format.

        For example, the returned string can be:

            P2DT11H27M33S

        which in this case means that the document has been edited for 2
        days, 11 hours, 27 minutes and 33 seconds.

        With argument, forces a new value into this property without
        checking.

generator()

        Without argument, returns a label representing the signature of the
        software which generated the document. Example of signature:

        "OpenOffice.org/3.1$Unix OpenOffice.org_project/310m11$Build-9399"

        With argument, inserts any signature.

getTemplate()

        Returns information about the template that is linked to the current
        document, if any.

        In scalar context, the returned information is the location (URL) of
        the template, or undef if the document isn't linked to any template.

        In array context, the returned values are, in this order, the location
        of the template document, the date and time when the template was last
        modified prior to being used to create the current document, then the
        title of the template document.

        See also unlinkTemplate().

getUserProperty(name)

        Retrieves the content of the user-defined property corresponding to the
        given name, if any.
        
        The argument may be an already retrieved user-defined property element
        reference instead of a name. 

        In scalar context, returns the value only.
        In array context, returns the data type (1st) and the value (2nd).

        Returns undef if the property is not defined.

        See also setUserProperty().

getUserPropertyElement(name)

        Like getUserProperty(), but the return value is the user property
        element instead of its value and/or type. Returns undef if the given
        property is not defined (or if the given object is not a user-defined
        property element).

getUserPropertyElements()

        Returns the list of all the existing user-defined property elements.

increment_editing_cycles()

        Adds 1 to the editing cycle count that is stored in the document, and
        returns the new count. This count should be incremented each time
        the document is edited through an ODF-compliant application.
        
        See also editing_cycles().

initial_creator()

        Like creator(), but apply to the creator of the first version of the
        document. The OOo desktop software never updates this value, but this
        method allows the user to read or write it.

keywords()

        Without argument, returns a list of the document's keywords. In a
        list context, the result is a table where each element is a keyword.
        In a scalar context, the keywords are returned in a single character
        string, each of which is separated by a comma and a space.

        With arguments, adds a list of keywords to the existing one. The
        only checking carried out is to see if the keyword already exists,
        if so it is not added.

language()

        Without argument, returns the content of the language variable.
        Example:

            fr_FR

        With argument, changes the content of this variable without
        checking.

removeKeyword(keyword)

        Removes the given keyword if it exists.

removeUserProperty(name)

        Deletes the user-defined property corresponding to the given name (does
        nothing if the given property is not defined in the document).

removeUserProperties()

        Deletes all the existing user-defined properties and returns the number
        or really deleted elements (does nothing and returns 0 if no user
        property is defined in the document).

setUserProperty(name, type => value_type, value => text)

        Creates or updates a user-defined property with the given data type and
        the given value.
        
        According to the ODF specification, the presently allowed data types in
        a meta property are float, date, time, boolean and string.
        However, the given type is not checked so the application can provide any
        abritrary type.

        While the consistency between the type and the value is not checked, the
        ODF compliance requires 'true' or 'false' for a boolean, and the ISO-8601
        format for a date (see odfLocaltime()).

        Example:

                $meta->setUserProperty
                        (
                        "Approved",
                        type => 'boolean', value => 'false'
                        );
                $meta->setUserProperty
                        (
                        "Circulation",
                        type => 'string', value => "Internal"
                        );
                $meta->setUserProperty
                        (
                        "Release date",
                        type => 'date', value => '2010-01-01'
                        );
                $meta->setUserProperty
                        (
                        "Release number",
                        type => 'float', value => 5.4
                        );
        
        The 'type' option allows to change the data type of an existing user-
        defined property. However, if a new property is created without 'type'
        option, the 'string' type is selected by default.

        The return value reflects the new status of the user defined item,
        in the same format as with getUserProperty().

statistic()

        Without argument, returns a hash which represents the entire
        "statistics" section of the metadata. The content depends on the
        type of document.

        Text

                'meta:table-count'      => number of tables
                'meta:image-count'      => number of images
                'meta:object-count'     => number of OLE objects
                'meta:page-count'       => number of pages
                'meta:paragraph-count'  => number of paragraphs
                'meta:word-count'       => number of words
                'meta:character-count'  => number of characters

        Spreadsheet

                'meta:table-count'      => number of sheets
                'meta:cell-count'       => number of non-empty cells
                'meta:object-count'     => number of objects (images, etc.)

        Example:

            my $meta    = odfMeta->new("invoice.ods");
            my %stat    = $meta->statistic;
            print       "This invoice contains " .
                "$stat{'meta:cell-count'} cells and "   .
                "$stat{'meta:table-count'} pages\n";

        With arguments, you can modify (or falsify ?!) all or some of the
        statistical data and even create attributes which are not created by
        the office software. Arguments are passed in pairs [key => value] and
        handled without checking.

        Example:

            $meta->statistic
                ('meta:table-count' => '4', 'status' => 'OK');

        This example forces the number of tables to 4 (whatever the reality)
        and adds an arbitrary attribute 'status' with value 'OK'.
        
        Note : Such forced attributes do not upset the function of
        the office software which ignores them. They could therefore be useful
        in programs which handle documents out of reach of the end user.
        However, if such a document is then edited or updated by a typical
        end-user desktop application, these "foreign" attributes could be lost
        and and replaced by what this application considers to be the "real"
        values to those attributes it manages.

subject()

        Without argument, returns the document's subject.

        With argument, adds a new subject to the document.

title()

        Without argument, returns the document's title.

        With argument, adds a new title to the document.

unlinkTemplate()

        Removes the reference to a template document, if any, ensuring that
        the document no longer depends on any external template.

user_defined()

        Returns the list of the user defined fields of the document.

        The list is returned in the form of a hash elements whose keys represent
        the field names and whose values represent their content.

        By supplying a similar hash of elements as an argument, this method
        deletes and replaces the existing content. However, if the number of
        provided items is less than the numbers of existing user defined
        properties, the exceding properties are left unchanged.

        Warning: this method is deprecated. Newer methods such as
        setUserProperty(), getUserProperty(), removeUserProperties(),
        getUserPropertyElements(), and getUserPropertyElements() should be
        preferred.

version()

        Synonym of editing_cycles().

        As for OpenOffice::OODoc::XPath

Developer/Maintainer: Jean-Marie Gouarne <http://jean.marie.gouarne.online.fr>

Contact: jmgdoc@cpan.org

Copyright 2004-2010 by Genicorp, S.A. <http://www.genicorp.com>

Initial English version of the reference manual by Graeme A. Hunter (graeme.hunter@zen.co.uk).

License: GNU Lesser General Public License v2.1

2010-01-27 perl v5.32.1

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