144 lines
4.1 KiB
PHP
144 lines
4.1 KiB
PHP
<?php namespace System\Validation;
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use System\Str;
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use System\Lang;
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class Message {
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/**
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* Get the appropriate validation message for a rule attribute.
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*
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* @param Rule $rule
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* @param string $attribute
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* @return string
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*/
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public static function get($rule, $attribute)
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{
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if ($rule instanceof Rangable_Rule)
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{
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$message = static::get_rangable_message($rule);
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}
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elseif ($rule instanceof Rules\Upload_of)
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{
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$message = static::get_upload_of_message($rule);
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}
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else
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{
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$message = static::get_message($rule);
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}
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return static::prepare($rule, $attribute, $message);
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}
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/**
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* Get the error message for a typical validation rule.
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*
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* @param Rule $rule
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* @return string
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*/
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private static function get_message($rule)
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{
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// ---------------------------------------------------------
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// The built-in error messages are stored in the language
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// directory and are keyed by the class name of the rule
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// they are associated with.
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// ---------------------------------------------------------
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if (is_null($rule->error))
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{
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$class = explode('\\', get_class($rule));
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$rule->error = strtolower(end($class));
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}
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return (is_null($rule->message)) ? Lang::line('validation.'.$rule->error)->get() : $rule->message;
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}
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/**
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* Get the error message for a Rangable rule.
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*
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* @param Rule $rule
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* @return string
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*/
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private static function get_rangable_message($rule)
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{
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// ---------------------------------------------------------
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// Rangable rules sometimes set a "presence_of" error.
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//
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// This occurs when an attribute is null and the option to
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// allow null values has not been set.
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// ---------------------------------------------------------
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if ($rule->error == 'presence_of')
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{
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return static::get_message($rule);
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}
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// ---------------------------------------------------------
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// Slice "number_" or "string_" off of the error type.
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// ---------------------------------------------------------
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$error_type = substr($rule->error, 7);
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return (is_null($rule->$error_type)) ? Lang::line('validation.'.$rule->error)->get() : $rule->$error_type;
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}
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/**
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* Get the error message for an Upload_Of rule.
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*
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* @param Rule $rule
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* @return string
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*/
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private static function get_upload_of_message($rule)
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{
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// ---------------------------------------------------------
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// Slice "file_" off of the error type.
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// ---------------------------------------------------------
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$error_type = substr($rule->error, 5);
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return (is_null($rule->$error_type)) ? Lang::line('validation.'.$rule->error)->get() : $rule->$error_type;
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}
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/**
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* Prepare an error message for display. All place-holders will be replaced
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* with their actual values.
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*
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* @param Rule $rule
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* @param string $attribute
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* @param string $message
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* @return string
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*/
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private static function prepare($rule, $attribute, $message)
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{
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// ---------------------------------------------------------
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// The rangable rule messages have three place-holders that
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// must be replaced.
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//
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// :max = The maximum size of the attribute.
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// :min = The minimum size of the attribute.
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// :size = The exact size the attribute must be.
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// ---------------------------------------------------------
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if ($rule instanceof Rangable_Rule)
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{
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$message = str_replace(':max', $rule->maximum, $message);
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$message = str_replace(':min', $rule->minimum, $message);
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$message = str_replace(':size', $rule->size, $message);
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}
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// ---------------------------------------------------------
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// The Upload_Of rule message have two place-holders taht
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// must be replaced.
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//
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// :max = The maximum file size of the upload (kilobytes).
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// :types = The allowed file types for the upload.
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// ---------------------------------------------------------
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elseif ($rule instanceof Rules\Upload_Of)
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{
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$message = str_replace(':max', $rule->maximum, $message);
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if (is_array($rule->types))
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{
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$message = str_replace(':types', implode(', ', $rule->types), $message);
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}
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}
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return str_replace(':attribute', Lang::line('attributes.'.$attribute)->get(str_replace('_', ' ', $attribute)), $message);
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}
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} |