199 lines
8.2 KiB
Python
199 lines
8.2 KiB
Python
"""Directly editable public site content."""
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from pathlib import Path
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from uuid import uuid4
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from django.core.exceptions import ValidationError
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from django.db import models
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from django.db.models import Q
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from PIL import Image, UnidentifiedImageError
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from . import validators
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def content_upload_path(instance, filename):
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return f"content/{uuid4().hex}{Path(filename).suffix.lower()}"
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def check_image(file):
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if not file or getattr(file, "_committed", True):
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return
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if file.size > 5 * 1024 * 1024:
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raise ValidationError("Images must be at most 5 MiB.")
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try:
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file.seek(0)
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with Image.open(file) as image:
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expected = {".png": "PNG", ".jpg": "JPEG", ".jpeg": "JPEG", ".webp": "WEBP"}.get(Path(file.name).suffix.lower())
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if image.format != expected:
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raise ValueError("Image format does not match its file extension.")
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image.verify()
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file.seek(0)
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with Image.open(file) as image:
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width, height = image.size
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if not 1 <= width <= 4096 or not 1 <= height <= 4096:
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raise ValueError("Image dimensions must be between 1 and 4096 pixels.")
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except (UnidentifiedImageError, OSError, ValueError) as exc:
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raise ValidationError("Upload a valid PNG, JPEG, or WebP image.") from exc
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finally:
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file.seek(0)
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class EditableContent(models.Model):
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seo_title = models.CharField("SEO title", max_length=120, blank=True)
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seo_description = models.CharField("SEO description", max_length=300, blank=True)
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seo_image = models.ImageField("Social sharing image", upload_to=content_upload_path, blank=True)
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seo_image_alt = models.CharField("Social image description", max_length=180, blank=True)
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class Meta:
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abstract = True
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def clean(self):
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super().clean()
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errors = {}
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for field in self._meta.fields:
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if isinstance(field, (models.CharField, models.TextField)):
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try:
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validators.text(getattr(self, field.name), field.max_length or 5000)
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except ValidationError as exc:
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errors[field.name] = exc
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for image_name in ("seo_image", "logo", "hero_image", "participation_image"):
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if not hasattr(self, image_name):
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continue
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image = getattr(self, image_name)
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alt_name = f"{image_name}_alt" if image_name != "logo" else "logo_alt"
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if image and not getattr(self, alt_name).strip():
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errors[alt_name] = "Describe the image for screen readers."
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if not image and getattr(self, alt_name):
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errors[alt_name] = "Remove the description or upload an image."
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try:
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check_image(image)
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except ValidationError as exc:
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errors[image_name] = exc
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if errors:
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raise ValidationError(errors)
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class SingleRecordContent(EditableContent):
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id = models.PositiveSmallIntegerField(primary_key=True, default=1, editable=False)
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class Meta:
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abstract = True
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def save(self, *args, **kwargs):
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self.pk = 1
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return super().save(*args, **kwargs)
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class SiteContent(SingleRecordContent):
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official_name = models.CharField(max_length=180, blank=True)
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short_name = models.CharField(max_length=80, blank=True)
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faculty_subline = models.CharField(max_length=140, blank=True)
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description = models.TextField(blank=True)
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logo = models.ImageField(upload_to=content_upload_path, blank=True)
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logo_alt = models.CharField(max_length=180, blank=True)
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nav_home = models.CharField("Home navigation label", max_length=80, default="Home")
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nav_about = models.CharField("About navigation label", max_length=80, default="About")
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nav_events = models.CharField("Events navigation label", max_length=80, default="Events")
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nav_blog = models.CharField("Blog navigation label", max_length=80, default="Blog")
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email = models.EmailField(blank=True)
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phone = models.CharField(max_length=30, blank=True)
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telegram_url = models.URLField(blank=True)
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instagram_url = models.URLField(blank=True)
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website_url = models.URLField(blank=True)
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address = models.TextField(blank=True)
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footer_copy = models.CharField(max_length=300, blank=True)
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class Meta:
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verbose_name = "Site content"
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constraints = [models.CheckConstraint(condition=Q(id=1), name="content_current_single_site")]
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def __str__(self):
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return "Site content"
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class HomeContent(SingleRecordContent):
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title = models.CharField(max_length=180, blank=True)
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intro = models.TextField(blank=True)
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hero_heading = models.CharField(max_length=120, blank=True)
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hero_body = models.TextField(blank=True)
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hero_image = models.ImageField(upload_to=content_upload_path, blank=True)
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hero_image_alt = models.CharField(max_length=180, blank=True)
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hero_action_label = models.CharField(max_length=40, blank=True)
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featured_events_heading = models.CharField(max_length=120, blank=True)
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featured_events_intro = models.CharField(max_length=300, blank=True)
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featured_events_link_label = models.CharField(max_length=40, blank=True)
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featured_posts_heading = models.CharField(max_length=120, blank=True)
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featured_posts_intro = models.CharField(max_length=300, blank=True)
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featured_posts_link_label = models.CharField(max_length=40, blank=True)
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participation_heading = models.CharField(max_length=120, blank=True)
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participation_body = models.TextField(blank=True)
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participation_image = models.ImageField(upload_to=content_upload_path, blank=True)
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participation_image_alt = models.CharField(max_length=180, blank=True)
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participation_action_label = models.CharField(max_length=40, blank=True)
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class Meta:
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verbose_name = "Home page content"
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constraints = [models.CheckConstraint(condition=Q(id=1), name="content_current_single_home")]
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def __str__(self):
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return "Home page"
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class AboutContent(SingleRecordContent):
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title = models.CharField(max_length=180, blank=True)
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intro = models.TextField(blank=True)
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identity_heading = models.CharField(max_length=120, blank=True)
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identity_body = models.TextField(blank=True)
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mission_heading = models.CharField(max_length=120, blank=True)
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mission_body = models.TextField(blank=True)
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activities_heading = models.CharField(max_length=120, blank=True)
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activities_body = models.TextField(blank=True)
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values_heading = models.CharField(max_length=120, blank=True)
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values_body = models.TextField(blank=True)
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committees_heading = models.CharField(max_length=120, blank=True)
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committees_body = models.TextField(blank=True)
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affiliations_heading = models.CharField(max_length=120, blank=True)
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affiliations_body = models.TextField(blank=True)
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faq_heading = models.CharField("FAQ heading", max_length=120, blank=True)
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contact_heading = models.CharField(max_length=120, blank=True)
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class Meta:
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verbose_name = "About page content"
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constraints = [models.CheckConstraint(condition=Q(id=1), name="content_current_single_about")]
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def __str__(self):
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return "About page"
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class AboutItem(models.Model):
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about = models.ForeignKey(AboutContent, on_delete=models.CASCADE, related_name="items")
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kind = models.CharField(max_length=20, choices=[(key, key.title()) for key in ("mission", "activities", "values", "committees", "affiliations", "faq")])
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title = models.CharField(max_length=120)
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text = models.TextField()
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position = models.PositiveSmallIntegerField(default=0)
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class Meta:
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ordering = ["kind", "position", "pk"]
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verbose_name = "About page item"
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def __str__(self):
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return self.title
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def clean(self):
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super().clean()
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validators.text(self.title, 120, required=True)
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validators.text(self.text, 600, required=True)
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class ListingContent(EditableContent):
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slug = models.CharField(max_length=10, primary_key=True, choices=[("events", "Events"), ("blog", "Blog")])
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title = models.CharField(max_length=180, blank=True)
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intro = models.TextField(blank=True)
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class Meta:
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verbose_name = "Listing page content"
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verbose_name_plural = "Listing page content"
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def __str__(self):
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return self.get_slug_display()
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