PHP code example of grithin / record

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

grithin / record example snippets

$data = [
	'id' => 1,
	'name' => 'bob',
	'children' => [
		['name' => 'sue']
	]
];

$record = new \Grithin\Record($data);
$record['name'] = 'bill';

$record->changes(); #> ['name'=>'bill']

$record->apply(); # or alias $record->save();

$record->changes(); #> []

$record['children'][] = ['name'=>'jan'];
$record->changes();
/*>
{"children": {
        "1": {
            "name": "jan"}}}
*/
unset($record['children'][0]);
$record->changes();
/*>
{"children": [
        {"_class": "Grithin\\MissingValue"},
        {"name": "jan"}]}
*/

# Lets make a mock database
$database_records = [
	1=>[
		'id'=>1,
		'name'=>'bob',
		'children' => '[{"name":"sue"}]'
]];

#+ make the getter and setter methods {
$get_from_db = function($Record) use ($database_records){
	return $database_records[$Record->id];
};
$set_to_db = function($Record, $changes) use ($database_records){
	$record_data = $database_records[$Record->id];
	$record_data= \Grithin\Dictionary::diff_apply($record_data, $changes);
	$database_records[$Record->id] = $record_data;
	return $record_data;
};
#+ }

# initialize the record, using the 'id' option
$record = new \Grithin\Record(false, $get_from_db, $set_to_db, ['id'=>1]);
$record->get();

# let's capitalize the name when we set it
$capitalize_name = function($Record, $diff){
	if(isset($diff['name'])){
		$diff['name'] = strtoupper($diff['name']);
	}
};
$record->before_change($capitalize_name);

$record['name'] = 'bill';
# the name will become capitalized because of the event listener
$record['name']; #> BILL


# the children key points to a JSON string
$record['children']; #> '[{"name":"sue"}]'

# We can make it so JSON is automatically encoded and decoded when moving between the database
$jsonify = function($Record, $diff){
	if(isset($diff['children'])){
		$diff['children'] = json_encode($diff['children']);
	}
};
$unjsonify = function($Record){
	if(isset($Record['children'])){
		$Record->record['children'] = json_decode($Record->record['children'], true);
	}
};

$record->after_get($unjsonify);
$record->before_update($jsonify);

$record->get();

# now can access the full structure
$record['children'][0]['name']; #> sue
$record['children'][0]['name'] = 'jan';
$record->save(); # will encode the json for the db, then decode it for regular access

$record['children'][0]['name']; #> 'jan'

var_export($database_records);
/* >
array (
  1 =>
  array (
    'id' => 1,
    'name' => 'bob',
    'children' => '[{"name":"sue"}]',
  ),
)
*/

# update local copy
$Record->local_update(['name'=>'bill', 'age'=>1]);

# update both
$Record->update(['name'=>'bill', 'age'=>1]);