Question

我正在检查数据是否存在而不是插入。所以我正在使用if else条件。看一看代码。

if($_POST['save_appointment']){
if(is_user_logged_in()){
            $user_appontment_sql = "select * from ".$wpdb->prefix."table where status=1 AND event_id=1 AND user_id=2";      
            $get_user_data_row = $wpdb->get_row($user_appontment_sql);  
            if(isset($get_user_data_row)){
                echo '<div class="saved_thing">'.__('You have already filled form for appointment for this date').'</div>';
            }
            else{
                $push_form_data=array();
                if($_POST['username']){
                    $user_data=array('username'=>$_POST['username'],'usernamelabel'=>$_POST['usernamelabel']);
                    $user_name=array('name_data'=>$user_data);
                    array_push($push_form_data,$user_name);
                }

                $form_data_all=json_encode($push_form_data);

            $done = add_appointment($_POST,$form_data_all);
            if($done==true)
                         {
                           echo '<div class="saved_thing">'.__('Mange tak. Du hører fra os snarest !').'</div>';
                            $user_status_mail = "select * from ".$wpdb->prefix."volunteer_app_setting where meta_key='admin_email' OR meta_key='email_send_status' OR meta_key='email_template_accept'";    
                            $get_appointment_send_mail = $wpdb->get_results($user_status_mail);
                            $event_metadata=unserialize($event_datas_count[0]->pstdata_value);

                            if($event_metadata['notification_mail']=='1')
                            {
                                require_once(dirname(dirname(dirname(dirname(__FILE__))))."/volunteer-appointment/mail/send_mail.php");
                                $selected_template=$event_meta_data['mail_temp_form_submission'];
                                $from=$get_appointment_send_mail[0]->meta_value;
                                $data=array('first_name'=>$_POST['username'],'send_to_admin'=>1,'event_date'=>get_post_meta($_POST['event_id'],'event-date',true),'event_name'=>get_the_title());
                                $current_user = wp_get_current_user();
                                $send_mail=mail_user($current_user->user_email,$selected_template,$from,$data);
                                if($send_mail){
                                            echo '<div class="saved_thing">'.__('E-mail notifikation afsendt til administrator').'</div>';
                                         }
                                         else{
                                             //echo "<script>alert('Mail not send');</script>";
                                         }

                            }
                        }
                        else
                        {
                        echo '<div class="saved_thing">'.__('Fejl!!!').'</div>';
                        }
            //}
            return;
            }
}
}

首先我们检查数据，如果它不存在，则转到else部分。如果部分一直存在，即使数据不存在但保存数据也会进入。在其他部分add_appointment()是问题所在。此功能正在保存数据。

我调试代码正在检查条件，如果数据库中不存在数据而不是转到else部分，则使用函数add_appointment()保存数据，并在执行函数后再转到其他条件并显示消息You have already filled form for appointment for this date < / p>

Answer 1

将您的if条件更改为

from - ＆gt; if(isset($get_user_data_row))

到 - ＆gt; if(!empty($get_user_data_row))

Answer 2

如果未找到任何行，则会返回if($get_user_data_row > 0) { // Some code here } else { // Some functions here }

app = Flask(__name__)
api = Api(app)

class Analysis(Resource):
def get(self, runtime):
   result2 = result1.to_json(orient='records')
   return json.loads(result2)

api.add_resource(Analysis, '/sample/<runtime>')

if __name__ == '__main__':
   app.run(port='8080')

在else部分中调用函数后执行if条件。为什么呢？

2 个答案: