public static function extractExpressions(array $args)
{
$numArgs = sizeof($args);
if (!$numArgs) {
throw new Exception('Not enough arguments');
}
if ($numArgs > 2) {
throw new Exception('Too many arguments');
}
$fieldNameOrPrepared = $args[0];
$valueOrBinds = null;
if ($numArgs > 1) {
$valueOrBinds = $args[1];
}
$expressions = [];
if (is_string($fieldNameOrPrepared)) {
/*
* Агрументы либо (prepared, binds), либо (field, value)
*/
if (PlainSql::hasPlaceholders($fieldNameOrPrepared) || $numArgs === 1) {
if ($numArgs == 1) {
$valueOrBinds = [];
} else {
if (!is_array($valueOrBinds)) {
throw new Exception('Binds must be an array');
}
}
$expressions[] = self::prepared($fieldNameOrPrepared, $valueOrBinds);
} else {
if ($numArgs !== 2) {
throw new Exception('Exactly 2 arguments expected');
}
$expressions[] = self::fieldEqual($fieldNameOrPrepared, $valueOrBinds);
}
} else {
if ($fieldNameOrPrepared instanceof Literal) {
/*
* Аргумент - литерал. Дополнительных аргументов не нужно
*/
if ($numArgs !== 1) {
throw new Exception('Two-arguments form is not allowed when Literal given');
}
$expressions[] = $fieldNameOrPrepared;
} else {
if (is_array($fieldNameOrPrepared)) {
/*
* Аргумент - массив соответствий типа [field1 => value1, field2 => value2]
*/
if ($numArgs !== 1) {
throw new Exception('Exactly one argument expected');
}
foreach ($fieldNameOrPrepared as $field => $value) {
$expressions[] = self::fieldEqual($field, $value);
}
} else {
throw new Exception('Incorrect expression definition');
}
}
}
return $expressions;
}
/**
* @expectedException b2\Exception
* @expectedExceptionMessage Literal expected, but AnyList found
*/
public function testListUnnamedBindsButNotList()
{
$b = new PlainSql('?', [new \b2\literal\AnyList([new Constant(1), new Constant(2)])]);
$b->toString($this->quoter());
}