Enhancements to DBObject class

[tiagosiebler]

Summary

• Removed hardcoded ID column name, with option to externally provide in constructor.
• Added helper functions: __isset, __unset, isSetup, dictionary.
• Replaced select function with one that allows a select query with multiple conditions, rather than just one. This is for situations where a single WHERE condition is not enough to retrieve a single row.

Examples

• Previously, one which condition:

$o = new Order();
$o->select($a->serial_number, 'serial_number');
//select(value,column_name)

• With multiple conditions:

$o = new Order();
$o->select($a->serial_number, 'serial_number', $a->item_name, 'item_name');
//select(column1_value, column1_name, ..., ..., column99_value, column99_name)