Question

我有一个django表单，用于向我的数据库添加新数据＆amp;引导选择框

如何使用选择框的项填充表单？

html：

class UnitSelectForm(forms.ModelForm):
    class Meta:
        model = lesson_student
        fields = ('lesson_code','student_code')

forms.py:

class student(models.Model):
    First_Name = models.CharField(max_length=100,null=True)
    Last_Name = models.CharField(max_length=100,null=True)
    STNO = models.CharField(max_length=10,null=True)
class lesson(models.Model):
    Name = models.CharField(max_length=100,null=True)
    Code = models.CharField(max_length=100,null=True)
class lesson_student(models.Model):
    lesson_code = models.CharField(max_length=100)
    student_code = models.CharField(max_length=100)

models.py：

//The Main Activity
public class FullscreenActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
    }

    Context context=this;
    Alarm alarm = new Alarm();

    public void onDummyButton(View view) {
        alarm.SetAlarm(this);
    }

}



//The Alarm Receiver
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
import android.widget.Toast;

import java.util.Calendar;

public class Alarm extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        //Log.d("Alarm", "onReceive");
        // Put here YOUR code.

        // Start the MainActivity
        Intent i = new Intent(context, FullscreenActivity.class);
        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);

        Toast.makeText(context, "Alarm !!!!!!!!!!", Toast.LENGTH_LONG).show(); // For example
    }

    public void SetAlarm(Context context)
    {
        AlarmManager am =( AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
        Intent i = new Intent(context, Alarm.class);
        PendingIntent pi = PendingIntent.getBroadcast(context, 0, i, 0);

        Calendar calendar = Calendar.getInstance();
        calendar.setTimeInMillis(System.currentTimeMillis() + 1000 * 15);
        //calendar.set(Calendar.HOUR_OF_DAY, calendar.get(Calendar.HOUR_OF_DAY));
        //calendar.set(Calendar.MINUTE, calendar.get(Calendar.MINUTE)+1);

        am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 1000 * 60 * 10, pi); // Millisec * Second * Minute

        Toast.makeText(context, "Alarm scheduled for: " + calendar.get(Calendar.HOUR_OF_DAY)+':'+calendar.get(Calendar.MINUTE)+':'+calendar.get(Calendar.SECOND), Toast.LENGTH_LONG).show();
    }

    public void CancelAlarm(Context context)
    {
        Intent intent = new Intent(context, Alarm.class);
        PendingIntent sender = PendingIntent.getBroadcast(context, 0, intent, 0);
        AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        alarmManager.cancel(sender);
    }

当我在选择框中选择一个项目时，每个表单的字段按该项填充

例如，当我在学生的选择框中选择Student1时...第一个学生表单的字段会自动填充 {{student.STNO}}

有可能???

Answer 1

您可以将其与一些javascript代码一起破解以处理选择，将学生和课程详细信息从下拉框复制到表单中，但为什么不只是首先修复模型

class lesson_student(models.Model):
    lesson = models.ForeignKey(Lesson)
    student = models.ForeignKey(Student)

现在，您不仅拥有有关其代码的详细信息......还可以使用完整模型。由于ModelForm会照顾您的表单，因此您在表单方面也不会做任何其他事情。

我的列表中存在问题.....在学生或课程列表中我有“学生对象”＆amp; “课程对象”而不是名称

那是因为您没有为模型提供string representation。

即

class student(models.Model):
    First_Name = models.CharField(max_length=100,null=True)
    Last_Name = models.CharField(max_length=100,null=True)
    STNO = models.CharField(max_length=10,null=True)

    def __str__(self):
         return "{0} {1}".format(self.First_Name, self.Last_Name)

使用bootstrap selectbox填充django表单

1 个答案: