Question

我有一个模特

models.py

import pygame
import sys
import math

from pygame.locals import *
pygame.init()

WINDOW = pygame.display.set_mode((900, 700))


keys=pygame.key.get_pressed()
y=100
z=100
x=100
FPS=70
fpsClock=pygame.time.Clock()

while True:                 

    for event in pygame.event.get():

            if event.type == QUIT:
            pygame.quit()
            sys.exit()
    keys=pygame.key.get_pressed()
    if keys[pygame.K_d]:#Moves character right
        y=y+3
        if y > 900:
            y=900
    if keys[pygame.K_a]:#Moves character left
        y=y-3
        if y<0:
            y=0
    if keys[pygame.K_s]:#Moves character downwards
        z=z+3
        if z>700:
            z=700
    if keys[pygame.K_w]:#Moves character upwards
        z=z-3
        if z<0:
            z=0
    if keys[pygame.K_SPACE]:
      pygame.draw.rect(WINDOW,COLOUR3,(y+35,z+7,5,2),2)


    COLOUR2 = (32,59,202)#Colour of player character
    COLOUR = (0,180,0)#Window colour
    COLOUR3 =(1,234,254)#Colour of bullet and gun for the player character
    WINDOW.fill(COLOUR)#Fills window with the COLOUR variable

    pygame.display.update()

    pygame.draw.circle(WINDOW, COLOUR2, (y, z), 20)#player character shape
    pygame.draw.rect(WINDOW,COLOUR3,(y+10,z+5,25,8), 7)#Part of the player character's weapon
    pygame.draw.rect(WINDOW,COLOUR3,(y+35,z+7,10,4), 5#Part of the player character's weapon)
    if keys[pygame.K_SPACE]:#Allows player character to shoot bullets
        x=x+5 # Speed of bullet
        pygame.draw.rect(WINDOW,COLOUR3,(y+35+x,z+7,5,2),2)#Bullet shape
    pygame.display.update()


    fpsClock.tick(FPS)

我的models.py

的所有对象

class EmployeeModel(models.Model):
    Employee_id = models.CharField(max_length=200)
    name = models.CharField(max_length=200)
    basic_salary = models.IntegerField(blank=True,default=0)
    HRA = models.IntegerField(blank=True,default=0)
    DA = models.IntegerField(blank=True,default=0)
    TA = models.IntegerField(blank=True,default=0)
    CCA = models.IntegerField(blank=True,default=0)
    Medical = models.IntegerField(blank=True,default=0)


    bonus = models.IntegerField(blank=True,default=0)
    advance_pay = models.IntegerField(blank=True,default=0)
    PF = models.IntegerField(blank=True,default=12)
    def __str__(self):
        return self.name

对于模型＆＃39; EmployeeModel＆＃39;的每个实例，我想从字段中检索数据以进一步计算在views.py＆＃39;为工资总额！例如，我想单独获取字段TA，DA，HRA的数据，以便我可以添加它们。但我不知道如何从Django字段获取数据。我是Django的新手。

Answer 1

@Lemayzeur感谢先生对于针对性的回答，作为新手很难理解django手册的深度，根据你现在的答案，我可以完成我的项目。我像这样实施

query = employeeModel.objects.values_list('basic_salary', 'DA', 'TA', 'HRA', 'CCA', 'Medical', 'bonus', 'advance_pay',
                                      'PF','PT','leave','working_days').filter(employee_id=employee_id)[0]
    print(query)

    basic_salary = query[0]
    dearness_allowance = query[1]
    travel_allowance = query[2]
    house_rent_allowance = query[3]
    city_compensatory_allowance = query[4]
    medical_allowance = query[5]
    bonus = query[6]
    advance_pay = query[7]
    provident_fund = query[8]
    professional_tax = query[9]
    leave = query[10]
    working_days = query[11]

我知道，它不是动态的，检索数据通常是开发人员使用我将要学习的API和ajax。

如何从Django字段中检索数据？

1 个答案: