[李景山php]每天laravel-20161009|Validator.php-9

/**
* Get the excluded ID column and value for the unique rule.
*
* @param  array  $parameters
* @return array
*/
protected function getUniqueIds($parameters)
{
$idColumn = isset($parameters[3]) ? $parameters[3] : 'id';//default is id

return [$idColumn, $parameters[2]];// return this id and other parameters
}// this is a protected function to  get the excluded ID column
// means these column not has ID
// get column and value for the unique rule.

/**
* Get the extra conditions for a unique rule.
*
* @param  array  $parameters
* @return array
*/
protected function getUniqueExtra($parameters)
{// get more conditions, like extra exists.
if (isset($parameters[4])) {// if has return this value
return $this->getExtraConditions(array_slice($parameters, 4));
}
//else return null
return [];
}//Get the extra conditions for a unique rule.

/**
* Validate the existence of an attribute value in a database table.
*
* @param  string  $attribute
* @param  mixed   $value
* @param  array   $parameters
* @return bool
*/
protected function validateExists($attribute, $value, $parameters)
{//Validate the existence of an attribute value in a database table
$this->requireParameterCount(1, $parameters, 'exists');// require Parameter Count

list($connection, $table) = $this->parseTable($parameters[0]);//list get this value

// The second parameter position holds the name of the column that should be
// verified as existing. If this parameter is not specified we will guess
// that the columns being "verified" shares the given attribute's name.
$column = isset($parameters[1]) ? $parameters[1] : $attribute;
// The second parameter position holds the name of the column that should be verified as existing.
// means this second parameter must be existing.
// if this parameter not exists, we will default think this column being "verified".
// and will shares the given attribute name

// get this column

$expected = (is_array($value)) ? count($value) : 1;// get the number

return $this->getExistCount($connection, $table, $column, $value, $parameters) >= $expected;
}// too simple and this type.

/**
* Get the number of records that exist in storage.
*
* @param  mixed   $connection
* @param  string  $table
* @param  string  $column
* @param  mixed   $value
* @param  array   $parameters
* @return int
*/
protected function getExistCount($connection, $table, $column, $value, $parameters)
{// Get the number of records that exist in storage.
//this storage maybe is mysql or redis.
$verifier = $this->getPresenceVerifier();//first get the verifier

$verifier->setConnection($connection);// set connection

$extra = $this->getExtraExistConditions($parameters);// get the extra condtion

if (is_array($value)) {// if has value
// return this value
return $verifier->getMultiCount($table, $column, $value, $extra);
}
// get Count
return $verifier->getCount($table, $column, $value, null, null, $extra);
}

/**
* Get the extra exist conditions.
*
* @param  array  $parameters
* @return array
*/
protected function getExtraExistConditions(array $parameters)
{// get Extra Conditions
return $this->getExtraConditions(array_values(array_slice($parameters, 2)));
}// Get the extra exist conditons.

/**
* Get the extra conditions for a unique / exists rule.
*
* @param  array  $segments
* @return array
*/
protected function getExtraConditions(array $segments)
{
$extra = [];// extra this storage

$count = count($segments);// get count number and segments

for ($i = 0; $i < $count; $i = $i + 2) {// loop this segments
$extra[$segments[$i]] = $segments[$i + 1];
}

return $extra;//return this result
}//Get the extra conditions for a unique /exists rule.

/**
* Validate that an attribute is a valid IP.
*
* @param  string  $attribute
* @param  mixed   $value
* @return bool
*/
protected function validateIp($attribute, $value)
{
return filter_var($value, FILTER_VALIDATE_IP) !== false;
}//validate that an attribute is a valid IP.

/**
* Validate that an attribute is a valid e-mail address.
*
* @param  string  $attribute
* @param  mixed   $value
* @return bool
*/
protected function validateEmail($attribute, $value)
{
return filter_var($value, FILTER_VALIDATE_EMAIL) !== false;
}//validate that an attribute is a valid e-mail address

/**
* Validate that an attribute is a valid URL.
*
* @param  string  $attribute
* @param  mixed   $value
* @return bool
*/
protected function validateUrl($attribute, $value)
{// validate that an attribute is a valid URL
/*
* This pattern is derived from Symfony\Component\Validator\Constraints\UrlValidator (2.7.4)
* (c) Fabien Potencier <fabien@symfony.com> http://symfony.com */
$pattern = '~^
((aaa|aaas|about|acap|acct|acr|adiumxtra|afp|afs|aim|apt|attachment|aw|barion|beshare|bitcoin|blob|bolo|callto|cap|chrome|chrome-extension|cid|coap|coaps|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-playcontainer|dlna-playsingle|dns|dntp|dtn|dvb|ed2k|example|facetime|fax|feed|feedready|file|filesystem|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|ham|hcp|http|https|iax|icap|icon|im|imap|info|iotdisco|ipn|ipp|ipps|irc|irc6|ircs|iris|iris.beep|iris.lwz|iris.xpc|iris.xpcs|itms|jabber|jar|jms|keyparc|lastfm|ldap|ldaps|magnet|mailserver|mailto|maps|market|message|mid|mms|modem|ms-help|ms-settings|ms-settings-airplanemode|ms-settings-bluetooth|ms-settings-camera|ms-settings-cellular|ms-settings-cloudstorage|ms-settings-emailandaccounts|ms-settings-language|ms-settings-location|ms-settings-lock|ms-settings-nfctransactions|ms-settings-notifications|ms-settings-power|ms-settings-privacy|ms-settings-proximity|ms-settings-screenrotation|ms-settings-wifi|ms-settings-workplace|msnim|msrp|msrps|mtqp|mumble|mupdate|mvn|news|nfs|ni|nih|nntp|notes|oid|opaquelocktoken|pack|palm|paparazzi|pkcs11|platform|pop|pres|prospero|proxy|psyc|query|redis|rediss|reload|res|resource|rmi|rsync|rtmfp|rtmp|rtsp|rtsps|rtspu|secondlife|service|session|sftp|sgn|shttp|sieve|sip|sips|skype|smb|sms|smtp|snews|snmp|soap.beep|soap.beeps|soldat|spotify|ssh|steam|stun|stuns|submit|svn|tag|teamspeak|tel|teliaeid|telnet|tftp|things|thismessage|tip|tn3270|turn|turns|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|videotex|view-source|wais|webcal|ws|wss|wtai|wyciwyg|xcon|xcon-userid|xfire|xmlrpc\.beep|xmlrpc.beeps|xmpp|xri|ymsgr|z39\.50|z39\.50r|z39\.50s))://                                 # protocol
(([\pL\pN-]+:)?([\pL\pN-]+)@)?          # basic auth
(
([\pL\pN\pS-\.])+(\.?([\pL]|xn\-\-[\pL\pN-]+)+\.?) # a domain name
|                                              # or
\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}                 # a IP address
|                                              # or
\[
(?:(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){6})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:::(?:(?:(?:[0-9a-f]{1,4})):){5})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){4})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,1}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){3})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,2}(?:(?:[0-9a-f]{1,4})))?::(?:(?:(?:[0-9a-f]{1,4})):){2})(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,3}(?:(?:[0-9a-f]{1,4})))?::(?:(?:[0-9a-f]{1,4})):)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,4}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:(?:(?:(?:[0-9a-f]{1,4})):(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9]))\.){3}(?:(?:25[0-5]|(?:[1-9]|1[0-9]|2[0-4])?[0-9])))))))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,5}(?:(?:[0-9a-f]{1,4})))?::)(?:(?:[0-9a-f]{1,4})))|(?:(?:(?:(?:(?:(?:[0-9a-f]{1,4})):){0,6}(?:(?:[0-9a-f]{1,4})))?::))))
\]  # a IPv6 address
)
(:[0-9]+)?                              # a port (optional)
(/?|/\S+)                               # a /, nothing or a / with something
$~ixu';

return preg_match($pattern, $value) === 1;
}// a big power full rules.

/**
* Validate that an attribute is an active URL.
*
* @param  string  $attribute
* @param  mixed   $value
* @return bool
*/
protected function validateActiveUrl($attribute, $value)
{
if ($url = parse_url($value, PHP_URL_HOST)) {
return count(dns_get_record($url, DNS_A | DNS_AAAA)) > 0;
}// a super parse_url

return false;
}// validate that an attribute is an active URL

/**
* Validate the MIME type of a file is an image MIME type.
*
* @param  string  $attribute
* @param  mixed   $value
* @return bool
*/
protected function validateImage($attribute, $value)
{
return $this->validateMimes($attribute, $value, ['jpeg', 'png', 'gif', 'bmp', 'svg']);
}// validate the MIME type of a file is an images MIME type.