snipe-it/app/Models/CustomField.php

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<?php
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namespace App\Models;
use App\Http\Traits\UniqueUndeletedTrait;
use EasySlugger\Utf8Slugger;
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use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Validation\Rule;
use Schema;
use Watson\Validating\ValidatingTrait;
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class CustomField extends Model
{
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use HasFactory;
use ValidatingTrait,
UniqueUndeletedTrait;
/**
* Custom field predfined formats
*
* @var array
*/
const PREDEFINED_FORMATS = [
'ANY' => '',
'CUSTOM REGEX' => '',
'ALPHA' => 'alpha',
'ALPHA-DASH' => 'alpha_dash',
'NUMERIC' => 'numeric',
'ALPHA-NUMERIC' => 'alpha_num',
'EMAIL' => 'email',
'DATE' => 'date',
'URL' => 'url',
'IP' => 'ip',
'IPV4' => 'ipv4',
'IPV6' => 'ipv6',
'MAC' => 'regex:/^[a-fA-F0-9]{2}:[a-fA-F0-9]{2}:[a-fA-F0-9]{2}:[a-fA-F0-9]{2}:[a-fA-F0-9]{2}:[a-fA-F0-9]{2}$/',
'BOOLEAN' => 'boolean',
];
public $guarded = [
'id',
];
/**
* Validation rules.
* At least empty array must be provided if using ValidatingTrait.
*
* @var array
*/
protected $rules = [
'name' => 'required|unique:custom_fields',
'element' => 'required|in:text,listbox,textarea,checkbox,radio',
'field_encrypted' => 'nullable|boolean',
];
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name',
'element',
'format',
'field_values',
'field_encrypted',
'help_text',
'show_in_email',
'is_unique',
'display_in_user_view',
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];
/**
* This is confusing, since it's actually the custom fields table that
* we're usually modifying, but since we alter the assets table, we have to
* say that here, otherwise the new fields get added onto the custom fields
* table instead of the assets table.
*
* @author [Brady Wetherington] [<uberbrady@gmail.com>]
* @since [v3.0]
*/
public static $table_name = 'assets';
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/**
* Convert the custom field's name property to a db-safe string.
*
* We could probably have used str_slug() here but not sure what it would
* do with previously existing values. - @snipe
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.4]
* @return string
*/
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public static function name_to_db_name($name)
{
return '_snipeit_'.preg_replace('/[^a-zA-Z0-9]/', '_', strtolower($name));
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}
/**
* Set some boot methods for creating and updating.
*
* There is never ever a time when we wouldn't want to be updating those asset
* column names and the values of the db column name in the custom fields table
* if they have changed, so we handle that here so that we don't have to remember
* to do it in the controllers.
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.4]
* @return bool
*/
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public static function boot()
{
parent::boot();
self::created(function ($custom_field) {
// Column already exists on the assets table - nothing to do here.
// This *shouldn't* happen in the wild.
if (Schema::hasColumn(self::$table_name, $custom_field->db_column)) {
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return false;
}
// Update the column name in the assets table
Schema::table(self::$table_name, function ($table) use ($custom_field) {
$table->text($custom_field->convertUnicodeDbSlug())->nullable();
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});
// Update the db_column property in the custom fields table
$custom_field->db_column = $custom_field->convertUnicodeDbSlug();
$custom_field->save();
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});
self::updating(function ($custom_field) {
// Column already exists on the assets table - nothing to do here.
if ($custom_field->isDirty('name')) {
if (Schema::hasColumn(self::$table_name, $custom_field->convertUnicodeDbSlug())) {
return true;
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}
// This is just a dumb thing we have to include because Laraval/Doctrine doesn't
// play well with enums or a table that EVER had enums. :(
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$platform = Schema::getConnection()->getDoctrineSchemaManager()->getDatabasePlatform();
$platform->registerDoctrineTypeMapping('enum', 'string');
// Rename the field if the name has changed
Schema::table(self::$table_name, function ($table) use ($custom_field) {
$table->renameColumn($custom_field->convertUnicodeDbSlug($custom_field->getOriginal('name')), $custom_field->convertUnicodeDbSlug());
});
// Save the updated column name to the custom fields table
$custom_field->db_column = $custom_field->convertUnicodeDbSlug();
$custom_field->save();
return true;
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}
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return true;
});
// Drop the assets column if we've deleted it from custom fields
self::deleting(function ($custom_field) {
return Schema::table(self::$table_name, function ($table) use ($custom_field) {
$table->dropColumn($custom_field->db_column);
});
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});
}
/**
* Establishes the customfield -> fieldset relationship
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.0]
* @return \Illuminate\Database\Eloquent\Relations\Relation
*/
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public function fieldset()
{
return $this->belongsToMany(\App\Models\CustomFieldset::class);
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}
/**
* Establishes the customfield -> admin user relationship
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.0]
* @return \Illuminate\Database\Eloquent\Relations\Relation
*/
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public function user()
{
return $this->belongsTo(\App\Models\User::class);
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}
/**
* Establishes the customfield -> default values relationship
*
* @author Hannah Tinkler
* @since [v3.0]
* @return \Illuminate\Database\Eloquent\Relations\Relation
*/
public function defaultValues()
{
return $this->belongsToMany(\App\Models\AssetModel::class, 'models_custom_fields')->withPivot('default_value');
}
/**
* Returns the default value for a given model using the defaultValues
* relationship
*
* @param int $modelId
* @return string
*/
public function defaultValue($modelId)
{
return $this->defaultValues->filter(function ($item) use ($modelId) {
return $item->pivot->asset_model_id == $modelId;
})->map(function ($item) {
return $item->pivot->default_value;
})->first();
}
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/**
* Checks the format of the attribute
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @param $value string
* @since [v3.0]
* @return bool
*/
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public function check_format($value)
{
return preg_match('/^'.$this->attributes['format'].'$/', $value) === 1;
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}
/**
* Gets the DB column name.
*
* @todo figure out if this is still needed? I don't know WTF it's for.
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.0]
* @return \Illuminate\Database\Eloquent\Relations\Relation
*/
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public function db_column_name()
{
return $this->db_column;
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}
/**
* Mutator for the 'format' attribute.
*
* This is used by the dropdown to store the laravel-specific
* validator strings in the database but still return the
* user-friendly text in the dropdowns, and in the custom fields display.
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.4]
* @return string
*/
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public function getFormatAttribute($value)
{
foreach (self::PREDEFINED_FORMATS as $name => $pattern) {
if ($pattern === $value || $name === $value) {
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return $name;
}
}
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return $value;
}
/**
* Format a value string as an array for select boxes and checkboxes.
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.4]
* @return array
*/
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public function setFormatAttribute($value)
{
if (isset(self::PREDEFINED_FORMATS[$value])) {
$this->attributes['format'] = self::PREDEFINED_FORMATS[$value];
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} else {
$this->attributes['format'] = $value;
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}
}
/**
* Format a value string as an array for select boxes and checkboxes.
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.4]
* @return array
*/
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public function formatFieldValuesAsArray()
{
$result = [];
$arr = preg_split('/\\r\\n|\\r|\\n/', $this->field_values);
if (($this->element != 'checkbox') && ($this->element != 'radio')) {
$result[''] = 'Select '.strtolower($this->format);
}
for ($x = 0; $x < count($arr); $x++) {
$arr_parts = explode('|', $arr[$x]);
if ($arr_parts[0] != '') {
if (array_key_exists('1', $arr_parts)) {
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$result[$arr_parts[0]] = $arr_parts[1];
} else {
$result[$arr_parts[0]] = $arr_parts[0];
}
}
}
return $result;
}
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/**
* Check whether the field is encrypted
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.4]
* @return bool
*/
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public function isFieldDecryptable($string)
{
if (($this->field_encrypted == '1') && ($string != '')) {
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return true;
}
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return false;
}
/**
* Convert non-UTF-8 or weirdly encoded text into something that
* won't break the database.
*
* @author [A. Gianotto] [<snipe@snipe.net>]
* @since [v3.4]
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* @return string
*/
public function convertUnicodeDbSlug($original = null)
{
$name = $original ? $original : $this->name;
$id = $this->id ? $this->id : 'xx';
if (! function_exists('transliterator_transliterate')) {
$long_slug = '_snipeit_'.str_slug(mb_convert_encoding(trim($name),"UTF-8"), '_');
} else {
$long_slug = '_snipeit_'.Utf8Slugger::slugify($name, '_');
}
return substr($long_slug, 0, 50).'_'.$id;
}
/**
* Get validation rules for custom fields to use with Validator
* @author [V. Cordes] [<volker@fdatek.de>]
* @param int $id
* @since [v4.1.10]
* @return array
*/
public function validationRules($regex_format = null)
{
return [
'format' => [
Rule::in(array_merge(array_keys(self::PREDEFINED_FORMATS), self::PREDEFINED_FORMATS, [$regex_format])),
]
];
}
/**
* Check to see if there is a custom regex format type
* @see https://github.com/snipe/snipe-it/issues/5896
*
* @author Wes Hulette <jwhulette@gmail.com>
*
* @since 5.0.0
*
* @return string
*/
public function getFormatType()
{
if (stripos($this->format, 'regex') === 0 && ($this->format !== self::PREDEFINED_FORMATS['MAC'])) {
return 'CUSTOM REGEX';
}
return $this->format;
}
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}