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Implement isTableExists() and fix return types of prepare(), query(), etc.

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This commit is contained in:
Kijin Sung 2020-06-29 22:46:38 +09:00
parent 1903deee40
commit 98bf9e485c
1 changed files with 18 additions and 9 deletions
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27
common/framework/db.php
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@ -132,14 +132,14 @@ class DB
* @param string $query_string
* @return \PDOStatement
*/
public function prepare(string $query_string): \PDOStatement
public function prepare(string $query_string)
{
// Add table prefixes to the query string.
$query_string = $this->addPrefixes($query_string);
// Create and return a prepared statement.
$stmt = $this->_handle->prepare($query_string);
return $stmt;
$this->_last_stmt = $this->_handle->prepare($query_string);
return $this->_last_stmt;
}
/**
@ -149,7 +149,7 @@ class DB
* @param mixed ...$args
* @return \PDOStatement
*/
public function query(string $query_string, ...$args): \PDOStatement
public function query(string $query_string, ...$args)
{
// If query parameters are given as a single array, unpack it.
if (count($args) === 1 && is_array($args[0]))
@ -167,12 +167,12 @@ class DB
$query_start_time = microtime(true);
if (count($args))
{
$stmt = $this->_handle->prepare($query_string);
$stmt->execute($args);
$this->_last_stmt = $this->_handle->prepare($query_string);
$this->_last_stmt->execute($args);
}
else
{
$stmt = $this->_handle->query($query_string);
$this->_last_stmt = $this->_handle->query($query_string);
}
$this->clearError();
$query_elapsed_time = microtime(true) - $query_start_time;
@ -188,7 +188,7 @@ class DB
}
$this->_total_time += (microtime(true) - $class_start_time);
return $stmt;
return $this->_last_stmt;
}
/**
@ -634,7 +634,16 @@ class DB
*/
public function isTableExists(string $table_name): bool
{
return true;
$stmt = $this->_query(sprintf("SHOW TABLES LIKE %s", $this->addQuotes($this->_prefix . $table_name)));
$result = $this->_fetch($stmt);
if ($result)
{
return true;
}
else
{
return false;
}
}
/**