Question

我有三个模型：Patient，Ipd，TreatmentGiven，并且每个模型都通过ForeignKey连接到另一个模型，并且迁移也成功运行，但是当我尝试从admin手动添加TreatmentGiven时，我遇到了OperationalError，没有这样的模型列：hospi_treatmentgiven.patient_id

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             xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools"
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             android:layout_height="match_parent"
             tools:context=".OneFragment"
>


    <LinearLayout
            android:id="@+id/lay_number"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_marginTop="40dp"
            android:visibility="visible"
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        <TextView
                android:id="@+id/txt_label_zero"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="0"
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        <TextView
                android:id="@+id/txt_label_two"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="2"
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        <TextView
                android:id="@+id/txt_label_four"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="4"
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        <TextView
                android:id="@+id/txt_label_six"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="6"
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        <TextView
                android:id="@+id/txt_label_eight"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="8"
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        <TextView
                android:id="@+id/txt_label_ten"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="10"
        />
    </LinearLayout>
    <androidx.appcompat.widget.AppCompatSeekBar
            android:id="@+id/seekbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="15dp"
            android:layout_marginRight="15dp"
            android:layout_marginTop="10dp"
            android:layout_below="@+id/lay_number"
            style="@style/Widget.AppCompat.SeekBar.Discrete"
            android:max="10"
            android:visibility="visible"
            android:progress="4"
            android:thumb="@drawable/drw_thumb_seekbar"
            android:progressDrawable="@drawable/drw_bg_seekbar"
            android:tickMark="@drawable/drw_bg_tickmark"/>

</RelativeLayout>

错误：

class Patient(models.Model): 

    firstname = models.CharField(max_length=200)
    lastname = models.CharField(max_length=200)
    phone = models.CharField(max_length=20)
    alternate_phone = models.CharField(max_length=20)
    address = models.TextField()
    patient_id = models.AutoField(primary_key=True)
    gender= models.CharField(max_length=6, choices=Gender)
 class Ipd(models.Model):

    patient = models.ForeignKey(Patient,on_delete=models.CASCADE,blank=True)
    reason_admission = models.CharField(max_length=200, blank=True)
    provisional_diagnosis = models.CharField(max_length=200,)
    ipd_id = models.AutoField(primary_key=True)
    weight =  models.CharField(max_length=10,blank = True)
    bill_responsible = models.CharField(max_length=100,blank = True)
    bill_relation =  models.CharField(max_length=100,blank = True)
    rooms = models.ForeignKey(Rooms,on_delete=models.CASCADE, blank=True)
    date_of_admission = models.DateField(("Date"), default=datetime.date.today)  
    condition_admission = models.CharField(max_length=20, choices=Admission_condition)
    consultant =  models.CharField(max_length=20, choices=Consultant)

    def __str__(self):
        return self.patient.firstname

class TreatmentGiven(models.Model):
    patient = models.ForeignKey(Ipd,on_delete = models.CASCADE,default = None)
    medicine_name = models.CharField(max_length = 100,null = True)
    types_of_doses = models.CharField(max_length = 100,null = True)
    route = models.CharField(max_length = 100,null = True)
    number_of_days = models.IntegerField(null = True)

Answer 1

在您的TreatmentGiven类中，您指向的是ForeignKey中的Ipd。

 TreatmentGiven(models.Model):
    patient = models.ForeignKey(Ipd,on_delete = models.CASCADE,default = None)
                              # ^^^

这将创建一列ipd_id而不是patient_id。我假设您想这样做： patient = models.ForeignKey(Patient,on_delete = models.CASCADE,default = None)

OperationalError，无此类列：hospi_treatmentgiven。Patient_id

1 个答案: