EntityModel 0.017

EntityModel is a Perl module that provides a data storage abstraction system (in the form of an Object Relational Model) for accessing backend storage from Perl and other languages. The intent is to take a model definition and generate or update database tables, caching layer and the corresponding code (Perl/C++/JS) for accessing data.

SYNOPSIS

 use EntityModel;
 # Define model
 my $model = EntityModel->new->load_from(
 JSON => { entity : [
 { name : 'article', field : [
 { name : 'idarticle', type : 'bigserial' },
 { name : 'title', type : 'varchar' },
 { name : 'content', type : 'text' }
 ], primary => { field : [ 'idarticle' ], separator : ':' }
 ] }
 );
 # Apply PostgreSQL schema (optional, only needed if the model changes)
 $model->apply('PostgreSQL' => { schema => 'datamodel', host => 'localhost', user => 'testuser' });
 # Create Perl classes
 $model->apply('Perl' => { namespace => 'Entity', baseclass => 'EntityModel::EntityBase' });

 my $article = Entity::Article->create(
 title => 'Test article',
 content => 'Article content'
 )->done(sub {
 my $article = shift;
 say "ID was " . $article->id;
 })->fail(sub {
 die 'Failed to create new article';
 });
 Entity::Article->find(
 title => 'Test article'
 )->first(sub {
 my $match = shift;
 $match->title('Revised title');
 die "Instances of the same object should always be linked, consistent and up-to-date"
 unless $article->title eq $match->title;
 });


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Requirements:

· Perl