carga

carga

autenticacion/models.py

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+from django.db import models
+from django.contrib.auth.models import User
+import os
+from tinymce import models as tinymce_models
+from model_utils import Choices
+import qrcode
+from io import BytesIO
+from django.core.files import File
+from PIL import Image, ImageDraw
+from universidad.models import carrera
+
+# Create your models here.
+
+class perfil(models.Model):
+    TIPO = Choices('Estudiante', 'Docente', 'Administrativo', 'Visitante')
+    GENERO = Choices('M', 'F')
+    GRU = Choices('A','B','C','D')
+    CUATRI = Choices('0','1','2','3','4','5','6','7','8','9','10')
+    usuario = models.ForeignKey(User, on_delete=models.CASCADE, null=True, blank=True)
+    matricula = models.CharField(max_length=50, unique=True, null=False, blank=False, verbose_name='Matricula ó CURP')
+    cuatrimestre = models.CharField(choices=CUATRI, default=0, max_length=2, verbose_name='Cuatrimestre')
+    grupo = models.CharField(choices=GRU, default=GRU.A, max_length=1, verbose_name='Grupo')
+    direccion = models.CharField(max_length=250, null=True, blank=True, verbose_name='Domicilio')
+    genero = models.CharField(choices=GENERO, default=GENERO.M, max_length=1, verbose_name='Genero')
+    telefono = models.CharField(max_length=15, null=True, blank=True, verbose_name='Telefono')
+    tipo = models.CharField(choices=TIPO, default=TIPO.Estudiante, max_length=20, verbose_name='Tipo')
+    id_carrera = models.ForeignKey(carrera, on_delete=models.CASCADE, null=False, blank=False, verbose_name='Carrera')
+    foto = models.ImageField(upload_to='foto/', blank=True)
+    qr = models.ImageField(upload_to='qr/', blank=True)
+    fecha_alta = models.DateField(auto_now_add=True, verbose_name='Fecha alta')
+    fecha_actualizacion = models.DateField(auto_now=True, verbose_name='Fecha de Actualización')
+    key = models.CharField(max_length=250, null=True, blank=True, verbose_name='Key')
+        
+    def delete(self, *args, **kwargs):
+        if os.path.isfile(self.foto.path):
+            os.remove(self.foto.path)
+        super(perfil, self).delete(*args, **kwargs)
+    
+    def __str__(self):
+        return self.matricula
+    
+    def save(self, *args, **kwargs):
+        data =  self.key
+        key = ''.join(ch for ch in data if ch.isalnum())
+        qr_image = qrcode.make(key)
+        qr_offset = Image.new('RGB',(480, 480),'white')
+        qr_offset.paste(qr_image)
+        files_name = f'{self.matricula}qr.png'
+        stream = BytesIO()
+        qr_offset.save(stream, 'PNG')
+        self.qr.save(files_name, File(stream), save=False)
+        qr_offset.close()
+        super().save(*args, **kwargs)
+
+    
+    class Meta:
+        verbose_name = 'perfil'
+        verbose_name_plural = 'perfiles'
+        ordering = ['matricula']