ACME-QuoteDB

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lib/ACME/QuoteDB/LoadDB.pm  view on Meta::CPAN


{verbose => 1}

=item  create_db  - optional (boolean)

L<ACME::QuoteDB::LoadDB> default behaviour is to always assume there is a
database and append new data to that. (It is usually only needed the first 
time one load's data)

setting this parameter to a true value will create a new database.
(so while this is an optional param, it is required at least once ;)

B<NOTE: it is not intelligent, if you hand it a populated database,
it will happily overwrite all data>

B<AGAIN: setting this param will destroy the current database, creating a new
empty one>

example:

{create_db => 1}


=back 

=head2 data_to_db

takes the data input provided to new, process' it and writes to the database.
should appropriatly blow up if not successful

=head2 dbload_from_csv

takes a csv file (in our defined format) as an argument, parses it and writes
the data to the database. (uses L<Text::CSV> with pure perl parser)
utf-8 safe. (opens file as utf8)

will croak with message if not successful


=head2 dbload

if your file format is set to 'html' or 'custom' you must 
define this method to do your parsing in a sub class.

Load from html is not supported because there are too many 
ways to represt the data. (same with 'custom')
(see tests for examples - there is a test for loading a 'fortune' file format)

One can subclass ACME::QuoteDB::LoadDB and override dbload,
to do our html parsing

=head2 debug_record

dump record (show what is set on the internal data structure) 

e.g. Data::Dumper

=head2 set_record

only needed it one plans to sub-class this module.
otherwise, is transparent in usage.

if you are sub-classing this module, you would have to populate 
this record. (L</write_record> knows about/uses this data structure)

possible fields consist of:

$self->set_record(quote  => q{});
$self->set_record(rating => q{});
$self->set_record(name   => q{});
$self->set_record(source => q{});
$self->set_record(catg   => q{});

currently can only set one attribute at a time.

ie. you cant do this:

 $self->set_record(
            name   => $name,
            source => $source
 );

 # or this even
 $self->set_record({
            name   => $name,
            source => $source
 });

=head2 get_record

only useful it one plans to sub-class this module.
otherwise, is transparent in usage.

if you are sub-classing this module, you would have to populate 
this record. [see L</set_record>] 

(L</write_record> knows about/uses this data structure)

possible fields consist of:

$self->get_record('quote');
$self->get_record('rating');
$self->get_record('name');
$self->get_record('source');
$self->get_record('catg');
 
=head2 success

indicates that the database load was successfull 

is undef on failure or if trying a L</dry_run>

 
=head2 write_record

takes the data structure 'record' '$self->get_record'
(which must exist). checks if attribution name ($self->get_record('name')) exists, 
if so, uses existing attribution name, otherwsie creates a new one

Load from html is not supported because there are too many 
ways to represt the data. (see tests for examples)

One can subclass ACME::QuoteDB::LoadDB and override dbload,
to do our html parsing

=head2 create_db_tables
 
create an empty quotes database (with correct tables). 

(usually only performed the first time you load data)

B<NOTE: will overwrite ALL existing data>

Set 'create_db' parameter (boolean) to a true value upon instantiation 
to enable.

The default action is to assume the database (and tables) exist and just
append new L<ACME::QuoteDB::LoadDB> loads to that.

=begin comment
 
    keep pod coverage happy.

    # Coverage for ACME::QuoteDB::LoadDB is 71.4%, with 3 naked subroutines:
    # Catg
    # Quote
    # Attr
    # QuoteCatg

    pod tests incorrectly state, Catg, Quote and Attr are subroutines, well they
    are,... (as aliases) but are imported into here, not defined within
    



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