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1598 lines (1417 loc) · 51.3 KB
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<?php
namespace ProcessMaker\Models;
use Carbon\Carbon;
use DB;
use DOMXPath;
use Exception;
use Illuminate\Auth\Access\AuthorizationException;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Gate;
use Illuminate\Support\Facades\Notification;
use Laravel\Scout\Searchable;
use Log;
use ProcessMaker\Casts\MillisecondsToDateCast;
use ProcessMaker\Contracts\ConditionalRedirectServiceInterface;
use ProcessMaker\Events\ActivityAssigned;
use ProcessMaker\Events\ActivityReassignment;
use ProcessMaker\Facades\WorkflowUserManager;
use ProcessMaker\Nayra\Bpmn\TokenTrait;
use ProcessMaker\Nayra\Contracts\Bpmn\ActivityInterface;
use ProcessMaker\Nayra\Contracts\Bpmn\FlowElementInterface;
use ProcessMaker\Nayra\Contracts\Bpmn\MultiInstanceLoopCharacteristicsInterface;
use ProcessMaker\Nayra\Contracts\Bpmn\TokenInterface;
use ProcessMaker\Nayra\Managers\WorkflowManagerDefault;
use ProcessMaker\Nayra\Storage\BpmnDocument;
use ProcessMaker\Notifications\ActivityActivatedNotification;
use ProcessMaker\Notifications\TaskReassignmentNotification;
use ProcessMaker\Query\Expression;
use ProcessMaker\Traits\ExtendedPMQL;
use ProcessMaker\Traits\HasUuids;
use ProcessMaker\Traits\HideSystemResources;
use ProcessMaker\Traits\SerializeToIso8601;
use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
use Throwable;
/**
* ProcessRequestToken is used to store the state of a token of the
* Nayra engine
*
* @property string $id
* @property string $process_request_id
* @property string $user_id
* @property string $element_id
* @property string $element_type
* @property string $status
* @property Carbon $completed_at
* @property Carbon $due_at
* @property Carbon $initiated_at
* @property Carbon $riskchanges_at
* @property Carbon $updated_at
* @property Carbon $created_at
* @property Carbon $created_at_ms
* @property Carbon $completed_at_ms
* @property ProcessRequest $processRequest
*
* @OA\Schema(
* schema="processRequestTokenEditable",
* @OA\Property(property="user_id", type="string", format="id"),
* @OA\Property(property="status", type="string"),
* @OA\Property(property="due_at", type="string", format="date-time"),
* @OA\Property(property="initiated_at", type="string", format="date-time"),
* @OA\Property(property="riskchanges_at", type="string", format="date-time"),
* @OA\Property(property="subprocess_start_event_id", type="string"),
* @OA\Property(property="data", type="object"),
* ),
* @OA\Schema(
* schema="processRequestToken",
* allOf={
* @OA\Schema(ref="#/components/schemas/processRequestTokenEditable"),
* @OA\Schema(
* @OA\Property(property="id", type="string", format="id"),
* @OA\Property(property="process_id", type="string", format="id"),
* @OA\Property(property="process_request_id", type="string", format="id"),
* @OA\Property(property="element_id", type="string", format="id"),
* @OA\Property(property="element_type", type="string", format="id"),
* @OA\Property(property="element_index", type="string"),
* @OA\Property(property="element_name", type="string"),
* @OA\Property(property="created_at", type="string", format="date-time"),
* @OA\Property(property="updated_at", type="string", format="date-time"),
* @OA\Property(property="initiated_at", type="string", format="date-time"),
* @OA\Property(property="advanceStatus", type="string"),
* @OA\Property(property="due_notified", type="integer"),
* @OA\Property(property="user", type="object", @OA\Schema(ref="#/components/schemas/users")),
* @OA\Property(property="process", type="object", @OA\Schema(ref="#/components/schemas/Process")),
* @OA\Property(property="process_request", type="object", @OA\Schema(ref="#/components/schemas/processRequest")),
* )
* }
* )
*
* @method ProcessRequest getInstance()
*/
class ProcessRequestToken extends ProcessMakerModel implements TokenInterface
{
use ExtendedPMQL;
use HasUuids;
use HideSystemResources;
use Searchable;
use SerializeToIso8601;
use TokenTrait;
protected $connection = 'processmaker';
/**
* Attributes that are not mass assignable.
*
* @var array
*/
protected $guarded = [
'id',
'uuid',
'updated_at',
'created_at',
'data',
];
/**
* The attributes that should be hidden for serialization.
*
* BPMN data will be hidden. It will be able by its getter.
*
* @var array
*/
protected $hidden = [
'bpmn',
'data',
];
/**
* The binary UUID attributes that should be converted to text.
*
* @var array
*/
protected $ids = [
'process_id',
'process_request_id',
'user_id',
];
/**
* The accessors to append to the model's array form.
*
* @var array
*/
protected $appends = [
'advanceStatus',
];
/**
* The attributes that should be cast to native types.
*
* @var array
*/
protected $casts = [
'completed_at' => 'datetime',
'due_at' => 'datetime',
'initiated_at' => 'datetime',
'riskchanges_at' => 'datetime',
'data' => 'array',
'self_service_groups' => 'array',
'token_properties' => 'array',
'is_priority' => 'boolean',
'is_actionbyemail' => 'boolean',
'created_at_ms' => MillisecondsToDateCast::class,
'completed_at_ms' => MillisecondsToDateCast::class,
'is_emailsent' => 'boolean',
];
/**
* Get the indexable data array for the model.
*
* @return array
*/
public function toSearchableArray()
{
$dataToInclude = $this->data;
unset($dataToInclude['_request']);
unset($dataToInclude['_user']);
return [
'id' => $this->id,
'element_name' => $this->element_name,
'request' => isset($this->processRequest->name) ? $this->processRequest->name : '',
'data' => json_encode($dataToInclude),
];
}
/**
* Determine whether the item should be indexed.
*
* @return bool
*/
public function shouldBeSearchable()
{
$setting = Setting::byKey('indexed-search');
if ($setting && $setting->config['enabled'] === true) {
return in_array($this->element_type, ['task', 'userTask']);
} else {
return false;
}
}
/**
* Boot application as a process instance.
*
* @param array $argument
*/
public function __construct(array $argument = [])
{
parent::__construct($argument);
$this->bootElement([]);
}
/**
* Notification settings of the process.
*
* @param string $entity
* @param string $notificationType
*
* @return array
*/
public function getNotifiables($notificationType)
{
$userIds = collect([]);
$process = $this->process()->first();
$notifiableTypes = $process->notification_settings()
->where('notification_type', $notificationType)
->where('element_id', $this->element_id)
->get()->pluck('notifiable_type');
foreach ($notifiableTypes as $notifiableType) {
$userIds = $userIds->merge($this->getNotifiableUserIds($notifiableType));
}
$userIds = $userIds->unique();
$notifiables = $notifiableTypes->implode(', ');
$users = $userIds->implode(', ');
Log::debug("Sending task {$notificationType} notification to {$notifiables} (users: {$users})");
return User::whereIn('id', $userIds)->get();
}
public function getNotifiableUserIds($notifiableType)
{
switch ($notifiableType) {
case 'requester':
return collect([$this->processRequest->user_id]);
break;
case 'assignee':
return collect([$this->user_id]);
break;
case 'participants':
return $this->processRequest->participants()->get()->pluck('id');
break;
case 'manager':
$process = $this->process()->first();
return collect($process?->manager_id ?? []);
break;
default:
return collect([]);
}
}
/**
* Get the process to which this version points to.
*/
public function process()
{
return $this->belongsTo(Process::class, 'process_id');
}
/**
* Get the request of the token.
*/
public function processRequest()
{
return $this->belongsTo(ProcessRequest::class, 'process_request_id');
}
/**
* Get the creator/author of this request.
*/
public function user()
{
return $this->belongsTo(User::class, 'user_id');
}
/**
* Get the creator/author of this request.
*/
public function assignableUsers()
{
$query = $this->newQuery()->where('id', $this->getKey());
return new TokenAssignableUsers($query, $this);
}
/**
* Scope to filter by case_number through the processRequest relationship
*/
public function scopeFilterByCaseNumber($query, $request)
{
$caseNumber = $request->input('case_number');
return $query->whereHas('processRequest', function ($query) use ($caseNumber) {
$query->where('case_number', $caseNumber);
});
}
/**
* Scope to filter by status.
* Supports single value (e.g. ACTIVE) or comma-separated values (e.g. CLOSED,TRIGGERED).
*/
public function scopeFilterByStatus($query, $request)
{
$status = $request->input('status', 'ACTIVE');
$statuses = array_map(fn ($v) => mb_strtoupper(trim($v)), explode(',', $status));
$statuses = array_filter($statuses);
if (count($statuses) === 1) {
return $query->where('status', $statuses[0]);
}
return $query->whereIn('status', $statuses);
}
/**
* Scope get process information
*/
public function scopeGetProcess($query)
{
return $query->with(['process' => function ($query) {
$query->select('id', 'name');
}]);
}
/**
* Scope get user information
*/
public function scopeGetUser($query)
{
return $query->with(['user' => function ($query) {
$query->select('id', 'firstname', 'lastname', 'username', 'avatar');
}]);
}
/**
* Scope apply order
*/
public function scopeApplyOrdering($query, $request)
{
$orderBy = $request->input('order_by', 'due_at');
$orderDirection = $request->input('order_direction', 'asc');
return $query->orderBy($orderBy, $orderDirection);
}
/**
* Scope apply pagination
*/
public function scopeApplyPagination($query, $request)
{
$page = $request->input('page', 1);
$perPage = $request->input('per_page', 10);
return $query->paginate($perPage);
}
/**
* Returns either the owner element or its properties
*
* @param asObject Boolean flag that determines whether the function should return the element directly or its
* properties as an object.
*
* @return If the parameter is true, the function will return the object. If is false, the
* function will return the properties of the object.
*/
private function getDefinitionFromOwner($asObject)
{
$element = $this->getOwnerElement();
return $asObject ? $element : $element->getProperties();
}
/**
* Retrieves a specific element's BPMN definition from a request object and returns either the element
* itself or its properties.
*
* @param asObject Boolean flag that determines whether the function should return the BPMN element instance
* as an object or just its properties.
*
* @return If `asObject` is false, the properties of the BPMN element instance are returned.
*/
private function getDefinitionFromRequest($asObject)
{
$request = $this->processRequest ?: $this->getInstance();
if (!$request) {
return [];
}
$process = $request->processVersion ?: $request->process;
$definitions = $process->getDefinitions();
$element = $definitions->findElementById($this->element_id);
if (!$element) {
return [];
}
return $asObject ? $element->getBpmnElementInstance() : $element->getBpmnElementInstance()->getProperties();
}
/**
* Get the BPMN definition of the element where the token is.
*
* @return array|\ProcessMaker\Nayra\Contracts\Bpmn\EntityInterface
*/
public function getDefinition($asObject = false, $par = null)
{
if ($this->getOwner() && $this->getOwnerElement()) {
return $this->getDefinitionFromOwner($asObject);
}
return $this->getDefinitionFromRequest($asObject);
}
/**
* Get the BPMN element node where the token is currently located.
*
* @return \ProcessMaker\Nayra\Storage\BpmnElement
*/
public function getBpmnDefinition()
{
/** @var ProcessRequest $request */
$request = $this->processRequest ?: $this->getInstance();
$definitions = $request->getVersionDefinitions();
return $definitions->findElementById($this->element_id);
}
/**
* Get the form assigned to the task.
*/
public function getScreen(): ?Screen
{
$definition = $this->getDefinition();
$screenRef = isset($definition['screenRef']) ? $definition['screenRef'] : null;
if (!$screenRef) {
$config = isset($definition['config']) ? json_decode($definition['config']) : null;
$screenRef = (isset($config) && isset($config->web_entry)) ? $config->web_entry->screen_id ?? null : null;
}
$screen = Screen::find($screenRef);
if ($screen === null) {
// Attempt to retrieve the localName property from the bpmnDefinition object.
// It uses a try-catch block to handle any exceptions that might occur, for example in test environments.
try {
$localName = $this->getBpmnDefinition()->localName;
} catch (Throwable $t) {
$localName = null;
}
$isManualTask = $localName === 'manualTask';
$defaultScreen = $isManualTask ? 'default-display-screen' : 'default-form-screen';
$screen = Screen::getScreenByKey($defaultScreen);
if (array_key_exists('implementation', $definition) && $definition['implementation'] === 'package-ai/processmaker-ai-assistant') {
$defaultScreen = 'default-ai-form-screen';
$screen = Screen::getScreenByKey($defaultScreen);
}
}
return $screen;
}
/**
* Get the screen assigned to the task at the time the request started
*
* @return ScreenInterface
*/
public function getScreenVersion()
{
$screen = $this->getScreen();
if ($screen === null) {
return null;
}
return $screen->versionFor($this->processRequest);
}
/**
* Get the ID of the task screen (if set) and any nested screens
*
* @return int[] Array of screen IDs
*/
public function getScreenAndNestedIds()
{
$taskScreen = $this->getScreen();
$interstitialScreen = $this->getInterstitial()['interstitial_screen'];
$screenIds = [];
if (!$taskScreen && !$interstitialScreen) {
$screenIds = [];
}
if ($taskScreen) {
$screenIds = $taskScreen->nestedScreenIds($this->processRequest);
$screenIds[] = $taskScreen->id;
}
if ($interstitialScreen && $interstitialScreen->config) {
if (isset($screenIds) && count($screenIds)) {
$screenIds = array_merge($interstitialScreen->nestedScreenIds($this->processRequest), $screenIds);
} else {
$screenIds = $interstitialScreen->nestedScreenIds($this->processRequest);
}
$screenIds[] = $interstitialScreen->id;
}
return $screenIds;
}
/**
* Get the script assigned to the task.
*
* @return Script
*/
public function getScript()
{
$definition = $this->getDefinition();
return empty($definition['scriptRef']) ? null : Script::find($definition['scriptRef']);
}
/**
* Get the script assigned to the task at the time the request started
*
* @return ScriptInterface
*/
public function getScriptVersion()
{
$script = $this->getScript();
if (!$script) {
return null;
}
return $script->versionFor($this->processRequest);
}
/**
* Returns the state of the advance of the request token (open, completed, overdue)
*
* @return string
*/
public function getAdvanceStatusAttribute()
{
$result = 'open';
$isOverdue = Carbon::now()->gte(Carbon::parse($this->due_at));
if ($isOverdue && $this->status === 'ACTIVE') {
$result = 'overdue';
}
if (!$isOverdue && $this->status === 'ACTIVE') {
$result = 'open';
}
if ($this->status === 'CLOSED') {
$result = 'completed';
}
if ($this->status === 'TRIGGERED') {
$result = 'triggered';
}
return $result;
}
/**
* Check if this task can be escalated to the manager by the assignee
*
* @return true if the task can be escalated
* @throws AuthorizationException if it can not
*/
public function authorizeAssigneeEscalateToManager()
{
$definitions = $this->getDefinition();
if (isset($definitions['config'])) {
$config = json_decode($definitions['config'], true);
if (Arr::get($config, 'assigneeManagerEscalation', false)) {
return true;
}
}
throw new AuthorizationException('Not authorized to escalate to manager');
}
/**
* Scheduled task for this token
*
* @return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function scheduledTasks()
{
return $this->hasMany(ScheduledTask::class, 'process_request_token_id');
}
public function draft()
{
return $this->hasOne(TaskDraft::class, 'task_id');
}
/**
* Get the sub-process request associated to the token.
*/
public function subProcessRequest()
{
return $this->belongsTo(ProcessRequest::class, 'subprocess_request_id');
}
/**
* Scope overdue
*
* @var Builder
*/
public function scopeOverdue($query, $overdue = '')
{
if (!empty($overdue)) {
return $query->where('due_at', '<', Carbon::now());
}
}
/**
* Filter tokens with a string
*
* @param $query
*
* @param $filter string
*/
public function scopeFilter($query, $filter)
{
$setting = Setting::byKey('indexed-search');
if ($setting && $setting->config['enabled'] === true) {
if (is_numeric($filter)) {
$query->whereIn('id', [$filter]);
} else {
$matches = self::search($filter)->take(10000)->get()->pluck('id');
$query->whereIn('id', $matches);
}
} else {
$filter = '%' . mb_strtolower($filter) . '%';
$query->where(function ($query) use ($filter) {
$query->where(DB::raw('LOWER(element_name)'), 'like', $filter)
->orWhere(DB::raw('LOWER(data)'), 'like', $filter)
->orWhere(DB::raw('LOWER(status)'), 'like', $filter)
->orWhere('id', 'like', $filter)
->orWhere('created_at', 'like', $filter)
->orWhere('due_at', 'like', $filter)
->orWhere('updated_at', 'like', $filter)
->orWhereHas('processRequest', function ($query) use ($filter) {
$query->where(DB::raw('LOWER(name)'), 'like', $filter);
})
->orWhereHas('processRequest', function ($query) use ($filter) {
$query->where(DB::raw('LOWER(data)'), 'like', $filter);
})
->orWhereHas('process', function ($query) use ($filter) {
$query->where(DB::raw('LOWER(name)'), 'like', $filter);
});
});
}
return $query;
}
/**
* PMQL field alias (started = created_at)
*
* @return string
*/
public function fieldAliasStarted()
{
return 'created_at';
}
/**
* PMQL field alias (created = created_at)
*
* @return string
*/
public function fieldAliasCreated()
{
return 'created_at';
}
/**
* PMQL field alias (modified = updated_at)
*
* @return string
*/
public function fieldAliasModified()
{
return 'updated_at';
}
/**
* PMQL field alias (due = due_at)
*
* @return string
*/
public function fieldAliasDue()
{
return 'due_at';
}
/**
* PMQL field alias (completed = completed_at)
*
* @return string
*/
public function fieldAliasCompleted()
{
return 'completed_at';
}
public function fieldAliasUser_Id()
{
return 'process_request_tokens.user_id';
}
/**
* PMQL value alias for fulltext field
*
* @param string $value
*
* @return callable
*/
public function valueAliasFullText($value, $expression)
{
return function ($query) use ($value) {
$this->scopeFilter($query, $value);
};
}
/**
* PMQL value alias for status field
*
* @param string $value
* @param ProcessMaker\Query\Expression $expression
*
* @return callable
*/
public function valueAliasStatus($value, $expression, $callback = null, User $user = null)
{
$statusMap = [
'in progress' => ['ACTIVE'],
'completed' => ['CLOSED', 'COMPLETED'],
];
$value = mb_strtolower($value);
// Capture processManagerIds from the builder if it's available
// The $callback parameter is actually the $builder from ExtendedPMQL
$builder = $callback;
$processManagerIds = null;
if ($builder && method_exists($builder, 'getQuery')) {
$processManagerIds = $builder->getQuery()->processManagerIds ?? null;
}
return function ($query) use ($value, $statusMap, $expression, $user, $processManagerIds) {
// Also check in the current query in case it's available there
$currentProcessManagerIds = $query->getQuery()->processManagerIds ?? null;
$finalProcessManagerIds = $processManagerIds ?? $currentProcessManagerIds;
$isProcessManager = !empty($finalProcessManagerIds);
if ($value === 'self service') {
if (!$user) {
$user = auth()->user();
}
if ($isProcessManager) {
// When processesIManage is active, include self-service tasks from managed processes
$selfServiceTaskIds = ProcessRequestToken::select(['id'])
->whereIn('process_id', $finalProcessManagerIds)
->where('is_self_service', 1)
->whereNull('user_id')
->where('status', 'ACTIVE');
$query->whereIn('process_request_tokens.id', $selfServiceTaskIds);
} elseif ($user) {
$query->whereIn('process_request_tokens.id', $user->availableSelfServiceTasksQuery());
} else {
$query->where('process_request_tokens.is_self_service', 1);
}
} elseif (array_key_exists($value, $statusMap)) {
$query->where('process_request_tokens.is_self_service', 0);
if ($expression->operator == '=') {
$query->whereIn('process_request_tokens.status', $statusMap[$value]);
} elseif ($expression->operator == '!=') {
$query->whereNotIn('process_request_tokens.status', $statusMap[$value]);
}
} else {
$query->where('process_request_tokens.status', $expression->operator, $value)
->where('process_request_tokens.is_self_service', 0);
}
};
}
/**
* PMQL value alias for request field
*
* @param string $value
* @param ProcessMaker\Query\Expression $expression
*
* @return callable
*/
public function valueAliasRequest($value, $expression)
{
return function ($query) use ($expression, $value) {
$processRequests = ProcessRequest::where('name', $expression->operator, $value)->get();
$query->whereIn('process_request_tokens.process_request_id', $processRequests->pluck('id'));
};
}
/**
* PMQL value alias for task field
*
* @param string $value
* @param ProcessMaker\Query\Expression $expression
*
* @return callable
*/
public function valueAliasTask($value, $expression)
{
return function ($query) use ($expression, $value) {
$query->where('process_request_tokens.element_name', $expression->operator, $value);
};
}
/**
* PMQL value alias for the case number field related to process request
*
* @param string value
* @param ProcessMaker\Query\Expression expression
*
* @return callable
*/
public function valueAliasCase_Number(string $value, Expression $expression): callable
{
return function ($query) use ($expression, $value) {
$query->whereHas('processRequest', function ($query) use ($expression, $value) {
return $query->where('case_number', $expression->operator, $value);
});
};
}
/**
* PMQL value alias for the case title field related to process request
*
* @param string value
* @param ProcessMaker\Query\Expression expression
*
* @return callable
*/
public function valueAliasCase_Title(string $value, Expression $expression): callable
{
return function ($query) use ($expression, $value) {
$query->whereHas('processRequest', function ($query) use ($expression, $value) {
$query->where('case_title', $expression->operator, $value);
});
};
}
/**
* PMQL value alias for the process name field related to process request
*
* @param string value
* @param ProcessMaker\Query\Expression expression
*
* @return callable
*/
public function valueAliasProcess_Name(string $value, Expression $expression): callable
{
return function ($query) use ($expression, $value) {
$query->whereHas('processRequest', function ($query) use ($expression, $value) {
$query->where('name', $expression->operator, $value);
});
};
}
/**
* PMQL value alias for assignee field by fullname.
* @param string $value
* @return callable
*/
public function valueAliasAssigneeByFullName($value, $expression)
{
return function ($query) use ($expression, $value) {
$query->whereHas('user', function ($query) use ($expression, $value) {
$query->whereRaw("CONCAT(firstname, ' ', lastname) " . $expression->operator . ' ?', [$value]);
});
};
}
/**
* PMQL wildcard for process request & data fields
*
* @param string $value
* @param ProcessMaker\Query\Expression $expression
*
* @return mixed
*/
public function fieldWildcard($value, $expression)
{
if (is_object($expression->field->field())) {
return function ($query) use ($expression, $value) {
$field = $expression->field->toEloquent();
$operator = $expression->operator;
$requestIds = ProcessRequest::where($field, $operator, $value)->pluck('id');
$query->whereIn('process_request_id', $requestIds);
};
} else {
if (stripos($expression->field->field(), 'data.') === 0) {
$field = $expression->field->field();
$operator = $expression->operator;
if (is_string($value)) {
$value = '"' . $value . '"';
} elseif (is_array($value)) {
$value = json_encode($value);
}
$pmql = "{$field} {$operator} {$value}";
return function ($query) use ($pmql) {
$requestIds = ProcessRequest::pmql($pmql)->pluck('id');
$query->whereIn('process_request_id', $requestIds);
};
}
}
}
/**
* Save version of the executable artifact (screen, script)
*/
public function saveVersion()
{
$screenVersion = $this->getScreenVersion();
$scriptVersion = $this->getScriptVersion();
if ($screenVersion) {
$this->version_id = $screenVersion->getKey();
$this->version_type = ScreenVersion::class;
} elseif ($scriptVersion) {
$this->version_id = $scriptVersion->getKey();
$this->version_type = ScriptVersion::class;
}
}
/**
* Get the assignment rule for the token.
*
* @return string
*/
public function getAssignmentRule()
{
$activity = $this->getBpmnDefinition()->getBpmnElementInstance();
$assignmentRules = $activity->getProperty('assignmentRules', null);
$assignment = $activity->getProperty('assignment', null);
if ($assignment !== 'rule_expression') {
return $assignment;
}
// Below is for rule_expression only
$instance = $this->getInstance();
if (!$instance) {
return $assignment;
}
$instanceData = $assignmentRules ? $instance->getDataStore()->getData() : null;
if ($assignmentRules && $instanceData) {
$list = json_decode($assignmentRules);
$list = ($list === null) ? [] : $list;
foreach ($list as $item) {
$formalExp = new FormalExpression();
$formalExp->setLanguage('FEEL');
$formalExp->setBody($item->expression);
$eval = $formalExp($instanceData);
if ($eval) {
return $item->type;