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Use constants to control alias handling (#1956 보완)

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This commit is contained in:
Kijin Sung 2022-07-03 17:48:52 +09:00
parent fe7833698a
commit b8641c3501
1 changed files with 15 additions and 9 deletions
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24
common/framework/parsers/dbquery/query.php
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@ -44,6 +44,13 @@ class Query extends VariableBase
protected $_column_list = array();
protected $_params = array();
/**
* Constants for alias handling.
*/
const ALIAS_NONE = 0;
const ALIAS_SPECIFIED = 1;
const ALIAS_ALWAYS = 2;
/**
* Generate the query string for this query.
*
@ -184,7 +191,7 @@ class Query extends VariableBase
// Compose the FROM clause.
if (count($this->tables))
{
$tables = $this->_arrangeTables($this->tables);
$tables = $this->_arrangeTables($this->tables, self::ALIAS_ALWAYS);
if ($tables !== '')
{
$result .= ' FROM ' . $tables;
@ -274,7 +281,7 @@ class Query extends VariableBase
// Compose the INTO clause.
if (count($this->tables))
{
$tables = $this->_arrangeTables($this->tables, false);
$tables = $this->_arrangeTables($this->tables, self::ALIAS_NONE);
if ($tables !== '')
{
$result .= ' INTO ' . $tables;
@ -326,7 +333,7 @@ class Query extends VariableBase
// Compose the INTO clause.
if (count($this->tables))
{
$tables = $this->_arrangeTables($this->tables, true, false);
$tables = $this->_arrangeTables($this->tables, self::ALIAS_SPECIFIED);
if ($tables !== '')
{
$result .= $tables;
@ -377,7 +384,7 @@ class Query extends VariableBase
// Compose the FROM clause.
if (count($this->tables))
{
$tables = $this->_arrangeTables($this->tables, false);
$tables = $this->_arrangeTables($this->tables, self::ALIAS_NONE);
if ($tables !== '')
{
$result .= ' FROM ' . $tables;
@ -418,11 +425,10 @@ class Query extends VariableBase
* Generate a FROM clause from a list of tables.
*
* @param array $tables
* @param bool $use_aliases
* @param bool $use_default_aliases
* @param int $use_aliases
* @return string
*/
protected function _arrangeTables(array $tables, bool $use_aliases = true, bool $use_default_aliases = true): string
protected function _arrangeTables(array $tables, int $use_aliases = self::ALIAS_SPECIFIED): string
{
// Initialize the result.
$result = array();
@ -455,11 +461,11 @@ class Query extends VariableBase
else
{
$tabledef = self::quoteName($this->_prefix . $table->name);
if ($use_default_aliases)
if ($use_aliases === self::ALIAS_ALWAYS)
{
$table->alias = $table->alias ?: $table->name;
}
if ($use_aliases && $table->alias && $table->alias !== ($this->_prefix . $table->name))
if ($use_aliases !== self::ALIAS_NONE && $table->alias && $table->alias !== ($this->_prefix . $table->name))
{
$tabledef .= ' AS `' . $table->alias . '`';
}