NAME
DBIx::DataModel::Doc::Internals - Description of the internal structure
DOCUMENTATION CONTEXT
This chapter is part of the DBIx::DataModel manual.
This chapter documents some details that normally should not be relevant to clients; you only want to read about them if you intend to extend the framework.
PRIVATE METHODS
_setClassData
DBIx::DataModel::Base->_setClassData($subclass, $data_ref);_createPackage
DBIx::DataModel::Schema->_createPackage($pckName, $isa_arrayref);Creates a new Perl package of name $pckName that inherits from @$isa_arrayref. Raises an exception if the package name already exists.
_defineMethod
DBIx::DataModel::Schema
->_defineMethod($pckName, $methName, $coderef, $silent);Defines a new method in package $pckName, bound to $coderef; or undefines a method if $coderef is undef. Raises an exception if the method name already exists in that package. Generates a warning if the method name already exists in a parent class, unless the optional $silent argument is true.
_rawInsert
$obj->_rawInsert;Internal implementation for insertions into the database : takes keys and values within %$obj, generates SQL for insertion of those values into $obj->dbTable, and executes it. Never called directly, but used by the protected method _singleInsert.
"PROTECTED" METHODS
_singleInsert
$obj->_singleInsert;Implementation for inserting a record into the database; should never be called directly, but is used as a backend by the insert method.
This method receives an object blessed into some table class; the object hash should only contain keys and values to be directly inserted into the database, i.e. the noUpdateColumns and all references to foreign objects should have been removed ( normally the insert method has already done that job). The _singleInsert method calls "_rawInsert" for performing the database update, and then makes sure that the object contains its own key, calling DBI's last_insert_id() if necessary, as explained in the insert documentation.
You may redeclare _singleInsert in your own table classes, for example if you need to compute a key by other means, like constructing it from other fields, or generating it from a random number. That key should be both inserted into the object and returned to the caller.