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from django.db import models
# Create your models here.
class Resource(models.Model):
name = models.CharField(max_length=255, null=False)
thumbnail_filenames = models.JSONField(
null=False,
verbose_name="Thumbnail filenames",
default=list,
)
resource_type = models.ForeignKey("ResourceType", on_delete=models.CASCADE)
main_resource_category = models.ForeignKey(
"ResourceCategory",
on_delete=models.CASCADE,
null=False,
related_name="main_resource_category",
)
additional_resource_category = models.ForeignKey(
"ResourceCategory",
on_delete=models.CASCADE,
null=True,
related_name="additional_resource_category",
)
description = models.TextField(max_length=1000, null=False, blank=False)
age_range = models.CharField(
max_length=20,
null=False,
default="5-7",
blank=False,
choices=[
("3-5", "3-5"),
("5-7", "5-7"),
("7-11", "7-11"),
("11-14", "11-14"),
("14-16", "14-16"),
("16+", "16+"),
("Age not applicable", "Age not applicable"),
],
)
curriculum = models.CharField(
max_length=20,
null=True,
default="English",
blank=True,
choices=[
("No curriculum", "No curriculum"),
("English", "English"),
("Scottish", "Scottish"),
],
)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
def __str__(self):
return self.name
class ResourceType(models.Model):
name = models.CharField(max_length=255, null=False)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
def __str__(self):
return self.name
class ResourceCategory(models.Model):
name = models.CharField(max_length=255, null=False)
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class Meta:
verbose_name_plural = "Resource Categories"
def __str__(self):
return self.name
class PDFResource(models.Model):
resource = models.ForeignKey(
"Resource",
on_delete=models.CASCADE,
null=False,
related_name="pdf_resources",
)
file_name = models.CharField(max_length=255, null=False)
file_size = models.IntegerField(null=False)
class Meta:
unique_together = ("resource", "file_name")
def snapshot_file_names(self):
return [f.file_name for f in self.pdf_page_snapshots.all()]
class PDFPageSnapshot(models.Model):
name = models.CharField(max_length=255, null=False)
file_name = models.CharField(max_length=255, null=False)
pdf_file = models.ForeignKey(
"PDFResource",
on_delete=models.CASCADE,
null=False,
related_name="pdf_page_snapshots",
)
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