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resolved #16

This commit is contained in:
Arsen Mirzaev Tatyano-Muradovich 2025-02-04 22:09:37 +07:00
parent 6937c70c9c
commit 260be006ae
2 changed files with 95 additions and 65 deletions
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139
mirzaev/baza/system/database.php
View File

@ -259,42 +259,42 @@ class database
*/
public function unpack(array $binaries): record
{
// Declaring the buffer of unpacked values
$unpacked = [];
// Declaring the buffer of unpacked values
$unpacked = [];
foreach ($this->columns as $index => $column) {
// Iterating over columns
foreach ($this->columns as $index => $column) {
// Iterating over columns
// Initializing link to the binary value
$binary = $binaries[$index] ?? null;
// Initializing link to the binary value
$binary = $binaries[$index] ?? null;
if ($column->type === type::string) {
// String
if ($column->type === type::string) {
// String
// Unpacking the value
$value = unpack($column->type->value . $column->length, $binary ?? str_repeat("\0", $column->length))[1];
// Unpacking the value
$value = unpack($column->type->value . $column->length, $binary ?? str_repeat("\0", $column->length))[1];
// Deleting NULL-characters
$unnulled = str_replace("\0", '', $value);
// Deleting NULL-characters
$unnulled = str_replace("\0", '', $value);
// Encoding the unpacked value
$encoded = mb_convert_encoding($unnulled, $this->encoding->value);
// Encoding the unpacked value
$encoded = mb_convert_encoding($unnulled, $this->encoding->value);
// Writing into the buffer of readed values
$unpacked[] = $encoded;
} else {
// Other types
// Writing into the buffer of readed values
$unpacked[] = $encoded;
} else {
// Other types
// Writing into the buffer of readed values
$unpacked[] = unpack($column->type->value, $binary ?? "\0")[1];
}
// Writing into the buffer of readed values
$unpacked[] = unpack($column->type->value, $binary ?? "\0")[1];
}
}
// Implementing the record
$record = $this->record(...$unpacked);
// Implementing the record
$record = $this->record(...$unpacked);
// Exit (success)
return $record;
// Exit (success)
return $record;
}
/**
@ -368,8 +368,13 @@ class database
*
* @return array|null Readed records
*/
public function read(?callable $filter = null, ?callable $update = null, bool $delete = false, int $amount = 1, int $offset = 0): ?array
{
public function read(
?callable $filter = null,
?callable $update = null,
bool $delete = false,
int $amount = 1,
int $offset = 0
): ?array {
// Opening the database file
$file = fopen($this->database, 'c+b');
@ -414,55 +419,55 @@ class database
// Unpacking the record
$record = $this->unpack($binaries);
if ((bool) array_filter($record->values())) {
// The record contains at least one non-empty value
if ((bool) array_filter($record->values())) {
// The record contains at least one non-empty value
if (is_null($filter) || $filter($record, $records)) {
// Passed the filter
if (is_null($filter) || $filter($record, $records)) {
// Passed the filter
if ($offset-- <= 0) {
// Offsetted
if ($offset-- <= 0) {
// Offsetted
if ($delete) {
// Requested deleting
if ($delete) {
// Requested deleting
// Moving to the beginning of the row
fseek($file, -$this->length, SEEK_CUR);
// Moving to the beginning of the row
fseek($file, -$this->length, SEEK_CUR);
// Writing NUL-characters instead of the record to the database file
fwrite($file, str_repeat("\0", $this->length));
// Writing NUL-characters instead of the record to the database file
fwrite($file, str_repeat("\0", $this->length));
// Moving to the end of the row
fseek($file, $this->length, SEEK_CUR);
} else if ($update) {
// Requested updating
// Moving to the end of the row
fseek($file, $this->length, SEEK_CUR);
} else if ($update) {
// Requested updating
// Updating the record
$update($record);
// Updating the record
$update($record);
// Packing the updated record
$packed = $this->pack($record);
// Packing the updated record
$packed = $this->pack($record);
// Moving to the beginning of the row
fseek($file, -$this->length, SEEK_CUR);
// Moving to the beginning of the row
fseek($file, -$this->length, SEEK_CUR);
// Writing to the database file
fwrite($file, $packed);
// Writing to the database file
fwrite($file, $packed);
// Moving to the end of the row
fseek($file, $this->length, SEEK_CUR);
// Moving to the end of the row
fseek($file, $this->length, SEEK_CUR);
}
// Writing into the buffer of records
$records[] = $record;
// Decreasing the amount iterator
--$amount;
}
// Writing into the buffer of records
$records[] = $record;
// Decreasing the amount iterator
--$amount;
}
} else {
// The record contains only empty values
}
} else {
// The record contains only empty values
}
} catch (exception_logic | exception_invalid_argument | exception_domain $exception) {
// Writing into the buffer of failed to reading records
@ -485,6 +490,16 @@ class database
return null;
}
/**
* Count
*
* @return int Amount of records
*/
public function count(): int{
// Exit (success)
return $this->length > 0 && file_exists($this->database) ? filesize($this->database) / $this->length : 0;
}
/**
* Backups
*

19
mirzaev/baza/tests/record.php
View File

@ -1,5 +1,7 @@
<?php
declare(strict_types=1);
use mirzaev\baza\database,
mirzaev\baza\record,
mirzaev\baza\column,
@ -7,11 +9,24 @@ use mirzaev\baza\database,
mirzaev\baza\enumerations\type;
// Initializing path to the composer loader file (main project)
$autoload = __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
$autoload =
__DIR__ . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'vendor' . DIRECTORY_SEPARATOR .
'autoload.php';
// Reinitializing path to the composer loaded file (depencendy project)
if (!file_exists($autoload))
$autoload = __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'autoload.php';
$autoload =
__DIR__ . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'..' . DIRECTORY_SEPARATOR .
'autoload.php';
// Importing files of thr project and dependencies
require($autoload);