<?php
class Flow
{
    public $system_id;
    public $form_id;
    public $flow_id;
    public $form_key;
    public $flow_code;
    public $flow_code_seq = 0;
    public $back_code;

    /**
     * @param null $formKey
     */
    public function __construct($formKey = null)
    {

        if ($formKey == null  or empty($formKey)) {
            $this->form_key = self::getNewFormKey();
        } else {

            list(
                $this->system_id,
                $this->flow_id,
                $this->form_id,
                $this->form_key,
                $this->flow_code,
                $this->flow_code_seq,
                $this->back_code
            )
                = DB::fields("SELECT system_id,flow_id,form_id,form_key,flow_code,flow_code_seq,back_code 
                              FROM flow where form_key ='$formKey'");
       //     echo   " FLow 33:" . "SELECT system_id,flow_id,form_id,form_key,flow_code,flow_code_seq,back_code 
                  //                  FROM flow where form_key ='$formKey'";
        }
    }

    public function getParentKey()
    {
        list($parent_key) = DB::fields("select parent_key from workflow_subflow 
                        where form_key='" . $this->form_key . "' ");
        return $parent_key;
    }
    public  static function getParentFormKey($formKey)
    {
        list($parent_key) = DB::fields("select parent_key from workflow_subflow 
                        where form_key='" . $formKey . "' ");
        return $parent_key;
    }
    public static function  getSplitFlowCode()
    {
    }

    /**
     * @param $formKey
     * @param $flowCode
     */
    static function updateFlowCode($formKey, $flowCode)
    {
        $where = "form_key = '" . $formKey . "'";
        DB::update_table("flow", array(
            "flow_code" =>  $flowCode 
        ), $where);
    }
    /**
     * 生成新的formkey
     * @return string
     */
    public static function getNewFormKey()
    {
       // list($curvalformKey) = DB::fields("SELECT appwms.currval('form_key') form_key");
        // echo   " curvalformKey line69 :" . $curvalformKey."<Br/>";
        list($formKey) = DB::fields("SELECT appwms.nextval('form_key') form_key");
        // echo   " formKey line77:" . $formKey."<Br/>";
        return $formKey;
    }

    public  function insert()
    {
        DB::insert_table("flow", array(
            "form_key" => $this->form_key,
            "system_id" => $this->system_id,
            "flow_id" => $this->flow_id,
            "form_id" => $this->form_id,
            "flow_code" => $this->flow_code,
            "flow_code_seq" => $this->flow_code_seq,
            "back_code" => $this->back_code
        ));
    }
    public function save()
    {
        list($cnt) = DB::fields("select  count(*) from flow where form_key='" . $this->form_key . "' ");

        if ($cnt == 0) {
          //  echo  "CNT : ".$cnt;
            DB::insert_table("flow", array(
                "form_key" => $this->form_key,
                "system_id" => $this->system_id,
                "flow_id" => $this->flow_id,
                "form_id" => $this->form_id,
                "flow_code" => $this->flow_code,
                "flow_code_seq" => $this->flow_code_seq,
                "back_code" => $this->back_code
            ));
        } else {
            $where = "form_key = '" . $this->form_key . "'";
            DB::update_table("flow", array(
                "flow_code" =>  $this->flow_code ,
                "flow_code_seq" =>  $this->flow_code_seq ,
                "back_code" => $this->back_code
            ), $where);
        }
    }

    /**
     * @return string
     */
    public function getFormKey()
    {
        return $this->form_key;
    }

    /**
     * @return mixed
     */
    public function getFormId()
    {
        return $this->form_id;
    }
    /**
     * @return mixed
     */
    public function getFlowId()
    {
        return $this->flow_id;
    }


    /**
     * @return mixed
     */
    public function getSystemId()
    {
        return $this->system_id;
    }

    /**
     * @param mixed $system_id
     * @return Flow
     */
    public function setSystemId($system_id)
    {
        $this->system_id = $system_id;
        return $this;
    }

    /**
     * @param mixed $flow_id
     * @return Flow
     */
    public function setFormId($form_id)
    {
        $this->form_id = $form_id;
        return $this;
    }

    /**
     * @param mixed $flow_code
     * @return Flow
     */
    public function setFlowCode($flow_code)
    {
        $this->flow_code = $flow_code;
        return $this;
    }
    /**
     * @return mixed
     */
    public function setFlowId($flow_id)
    {
        $this->flow_id = $flow_id;
        return $this;
    }
    /**
     * @return mixed
     */
    public function getFlowCode()
    {
        return $this->flow_code;
    }
}