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Add unique ID #11

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5d01e62
Add unique ID
lenivene Oct 21, 2019
af7bd81
Generate IDs like MongoDB
lenivene Jan 25, 2020
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24 changes: 23 additions & 1 deletion src/JSONDB.php
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Original file line number Diff line number Diff line change
Expand Up @@ -110,12 +110,34 @@ public function update( array $columns ) {
*
* @param string $file json filename without extension
* @param array $values Array of columns as keys and values
* @param bool $_id Generate a unique ID
*
* @return array $last_indexes Array of last index inserted
*/
public function insert( $file, array $values ) : array {
public function insert( $file, array $values, $_id = true ) : array {
$this->from( $file );

if( $_id ) {
$bin = sprintf(
"%s%s%s%s",
pack('N', time()),
substr(md5(php_uname('n')), 0, 3),
pack('n', getmypid()),
substr(pack('N', mt_rand(0, mt_getrandmax())), 1, 3)
);

$_id = '';
for ($i = 0; $i < 12; $i++) {
$_id .= sprintf("%02x", ord($bin[$i]));
}

/**
* Generate ID like MongoDB
* @author Julius Beckmann <github.com/h4cc>
*/
$values['_id'] = $_id;
}

if( !empty( $this->content[ 0 ] ) ) {
$nulls = array_diff_key( ( array ) $this->content[ 0 ], $values );
if( $nulls ) {
Expand Down