NAME

       Data::Phrasebook::SQL::Query - Query Extension to the SQL/DBI Phrasebook Model.

SYNOPSIS

           my $q = $book->query( 'find_author' );
           my $q = $book->query( 'find_author', 'Dictionary' );

DESCRIPTION

       An extension to the SQL class to specifically handle the DBI interface for each query
       requested.

CONSTRUCTOR

   new
       Not to be accessed directly, but via the parent Data::Phrasebook, by specifying the class
       as SQL.

METHODS

   sql
       Get/set the current "sql" statement, in a form suitable for passing straight to DBI.

   sth
       Get/set the current statement handle.

   args
       Return list of arguments that will be used as bind parameters to any placeholders. Any
       given arguments will replace the whole list.

       Returns list in list context, arrayref in scalar.

   order
       As for "args", but regarding the corresponding list of argument names.

       The assorted "order_XXX" methods are supported as for "args_XXX".

   dbh
       Get/set the database handle.

PREPARATION / EXECUTING METHODS

   execute
       Executes the query. Returns the result of "DBI::execute".

       Any arguments are given to "order_args" with the return of that method being used as
       arguments to "DBI::execute". If no arguments, uses those already specified.

       Calls "prepare" if necessary.

   order_args
       Given a hash or hashref of keyword to value mappings, organises an array of arguments
       suitable for use as bind parameters in the order needed by the query itself.

   prepare
       Prepares the query for execution. This method is called implicitly in most cases so you
       generally don't need to know about it.

   rebind
       Rebinds any bound values. Lets one pass a scalar reference in the arguments to
       "order_args" and have the bound value update if the original scalar changes.

       This method is not needed externally to this class.

DELEGATED METHODS

       Any method not mentioned above is given to the statement handle.

       All these delegations will implicitly call "prepare".

SEE ALSO

       Data::Phrasebook, Data::Phrasebook::SQL.

SUPPORT

       Please see the README file.

AUTHOR

         Original author: Iain Campbell Truskett (16.07.1979 - 29.12.2003)
         Maintainer: Barbie <barbie@cpan.org> since January 2004.
         for Miss Barbell Productions <http://www.missbarbell.co.uk>.

COPYRIGHT AND LICENSE

         Copyright (C) 2003 Iain Truskett.
         Copyright (C) 2004-2013 Barbie for Miss Barbell Productions.

         This distribution is free software; you can redistribute it and/or
         modify it under the Artistic License v2.