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# Database Abstraction Layer

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v5:activerecord:belongsto

# belongsTo

This function is deprecated. Use ClassBelongsTo/TableBelongsTo/TableKeyBelongsTo instead.

##### Syntax

    void belongsTo(
      string $relationName,
      string $foreignKey,
      optional string $parentPrimaryKey = 'id'
      )

## Description

This function is the older way to define the parent of the current object.

## Usage

In this example, we have a child table children, and a parent table person. We have a link children.person_id = persons.id. We create a child first, then link it to the parent:

    class Child extends ADOdb_Active_Record{};
    $ch = new Child('children',array('id'));
    /*
    * this can be simplified to $ch->BelongsTo('person')
    * as foreign key defaults to $table.'_id' and
    * parent pkey defaults to 'id'
    */
    $ch->BelongsTo('person','person_id','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>";

v5/activerecord/belongsto.txt · Last modified: 2016/01/12 17:15 by mnewnham

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