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classBelongsTo

Syntax

void ADODB_Active_Record::classBelongsTo(
   string $class, 
   string $relationName, 
   string $foreignKey, 
   optional string $parentPrimaryKey = 'id', 
   optional string $parentClass = 'ADODB_Active_Record'
   )

Description

You can define the parent of the current object using ClassBelongsTo(). In the example below, we have a child table kids, and a parent table person. We have a link kids.person_id = persons.id. We create a child first, then link it to the parent

Usage

class kid extends ADOdb_Active_Record{};
ADODB_Active_Record::ClassBelongsTo('kid','person','person_id','id');
 
$ch = new kid(); // default tablename will be 'kids', with primary key 'id'
$ch->Load('id=1');
$p = $ch->person;
if (!$p || $p->name_first != 'John') echo "Error loading belongsTo<br>";
else echo "OK loading BelongTo<br>";