Перенос классов в файлы

Классы работы с базой данных, кеша, датастора переносим в отдельные файлы. Обычный require, но надо добавить require только при выбранности данного вида кеширования.
2025-08-20 05:13:54 -07:00 · 2014-11-23 00:22:21 +03:00 · 2014-11-23 00:22:21 +03:00 · 80c99e7c8e
commit 80c99e7c8e
parent 66455f879d
20 changed files with 1734 additions and 1652 deletions
--- a/library/includes/cache/sqlite_common.php
+++ b/library/includes/cache/sqlite_common.php
@ -0,0 +1,181 @@
+<?php
+
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
+class sqlite_common extends cache_common
+{
+	var $cfg = array(
+		'db_file_path' => 'sqlite.db',
+		'table_name'   => 'table_name',
+		'table_schema' => 'CREATE TABLE table_name (...)',
+		'pconnect'     => true,
+		'con_required' => true,
+		'log_name'     => 'SQLite',
+		'shard_type'   => 'none',     #  none, string, int (тип перевичного ключа для шардинга)
+		'shard_val'    => 0,          #  для string - кол. начальных символов, для int - делитель (будет использован остаток от деления)
+	);
+	var $engine    = 'SQLite';
+	var $dbh       = null;
+	var $connected = false;
+	var $shard_val = false;
+
+	var $table_create_attempts = 0;
+
+	function sqlite_common ($cfg)
+	{
+		$this->cfg = array_merge($this->cfg, $cfg);
+		$this->dbg_enabled = sql_dbg_enabled();
+	}
+
+	function connect ()
+	{
+		$this->cur_query = ($this->dbg_enabled) ? 'connect to: '. $this->cfg['db_file_path'] : 'connect';
+		$this->debug('start');
+
+		if (@$this->dbh = new SQLite3($this->cfg['db_file_path']))
+		{
+			$this->connected = true;
+		}
+
+		if (DBG_LOG) dbg_log(' ', $this->cfg['log_name'] .'-connect'. ($this->connected ? '' : '-FAIL'));
+
+		if (!$this->connected && $this->cfg['con_required'])
+		{
+			trigger_error('SQLite not connected', E_USER_ERROR);
+		}
+
+		$this->debug('stop');
+		$this->cur_query = null;
+	}
+
+	function create_table ()
+	{
+		$this->table_create_attempts++;
+		return $this->dbh->query($this->cfg['table_schema']);
+	}
+
+	function shard ($name)
+	{
+		$type = $this->cfg['shard_type'];
+
+		if ($type == 'none') return;
+		if (is_array($name))  trigger_error('cannot shard: $name is array', E_USER_ERROR);
+
+		// define shard_val
+		if ($type == 'string')
+		{
+			$shard_val = substr($name, 0, $this->cfg['shard_val']);
+		}
+		else
+		{
+			$shard_val = $name % $this->cfg['shard_val'];
+		}
+		// все запросы должны быть к одному и тому же шарду
+		if ($this->shard_val !== false)
+		{
+			if ($shard_val != $this->shard_val)
+			{
+				trigger_error("shard cannot be reassigned. [{$this->shard_val}, $shard_val, $name]", E_USER_ERROR);
+			}
+			else
+			{
+				return;
+			}
+		}
+		$this->shard_val = $shard_val;
+		$this->cfg['db_file_path'] = str_replace('*', $shard_val, $this->cfg['db_file_path']);
+	}
+
+	function query ($query)
+	{
+		if (!$this->connected) $this->connect();
+
+		$this->cur_query = $query;
+		$this->debug('start');
+
+		if (!$result = @$this->dbh->query($query))
+		{
+			$rowsresult = $this->dbh->query("PRAGMA table_info({$this->cfg['table_name']})");
+			$rowscount = 0;
+			while ($row = $rowsresult->fetchArray(SQLITE3_ASSOC))
+			{
+				$rowscount++;
+			}
+			if (!$this->table_create_attempts && !$rowscount)
+			{
+				if ($this->create_table())
+				{
+					$result = $this->dbh->query($query);
+				}
+			}
+			if (!$result)
+			{
+				$this->trigger_error($this->get_error_msg());
+			}
+		}
+
+		$this->debug('stop');
+		$this->cur_query = null;
+
+		$this->num_queries++;
+
+		return $result;
+	}
+
+	function fetch_row ($query)
+	{
+		$result = $this->query($query);
+		return is_resource($result) ? $result->fetchArray(SQLITE3_ASSOC) : false;
+	}
+
+	function fetch_rowset ($query)
+	{
+		$result = $this->query($query);
+		$rowset = array();
+		while ($row = $result->fetchArray(SQLITE3_ASSOC))
+		{
+			$rowset[] = $row;
+		}
+		return $rowset;
+	}
+
+	function changes ()
+	{
+		return is_resource($this->dbh) ? $this->dbh->changes() : 0;
+	}
+
+	function escape ($str)
+	{
+		return sqlite_escape_string($str);
+	}
+
+	function get_error_msg ()
+	{
+		return 'SQLite error #'. ($err_code = $this->dbh->lastErrorCode()) .': '. $this->dbh->lastErrorMsg();
+	}
+
+	function rm ($name = '')
+	{
+		if ($name)
+		{
+			$this->db->shard($this->prefix . $name);
+			$result = $this->db->query("DELETE FROM ". $this->cfg['table_name'] ." WHERE cache_name = '". sqlite_escape_string($this->prefix . $name) ."'");
+		}
+		else
+		{
+			$result = $this->db->query("DELETE FROM ". $this->cfg['table_name']);
+		}
+		return (bool) $result;
+	}
+
+	function gc ($expire_time = TIMENOW)
+	{
+		$result = $this->db->query("DELETE FROM ". $this->cfg['table_name'] ." WHERE cache_expire_time < $expire_time");
+		return ($result) ? sqlite_changes($this->db->dbh) : 0;
+	}
+
+	function trigger_error ($msg = 'DB Error')
+	{
+		if (error_reporting()) trigger_error($msg, E_USER_ERROR);
+	}
+}