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https://github.com/bookwyrm-social/bookwyrm.git
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775470a852
Some isnis are imported with spaces and some not. This normalises them for comparison and creating URLs
90 lines
2.6 KiB
Python
90 lines
2.6 KiB
Python
""" template filters for really common utilities """
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import os
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import re
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from uuid import uuid4
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from django import template
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from django.utils.translation import gettext_lazy as _
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from django.template.defaultfilters import stringfilter
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from django.templatetags.static import static
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register = template.Library()
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@register.filter(name="uuid")
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def get_uuid(identifier):
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"""for avoiding clashing ids when there are many forms"""
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return f"{identifier}{uuid4()}"
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@register.filter(name="username")
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def get_user_identifier(user):
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"""use localname for local users, username for remote"""
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return user.localname if user.localname else user.username
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@register.filter(name="book_title")
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def get_title(book, too_short=5):
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"""display the subtitle if the title is short"""
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if not book:
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return ""
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title = book.title
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if len(title) <= too_short and book.subtitle:
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title = _("%(title)s: %(subtitle)s") % {
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"title": title,
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"subtitle": book.subtitle,
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}
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return title
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@register.simple_tag(takes_context=False)
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def comparison_bool(str1, str2, reverse=False):
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"""idk why I need to write a tag for this, it returns a bool"""
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if reverse:
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return str1 != str2
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return str1 == str2
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@register.filter(is_safe=True)
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def truncatepath(value, arg):
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"""Truncate a path by removing all directories except the first and truncating ."""
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path = os.path.normpath(value.name)
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path_list = path.split(os.sep)
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try:
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length = int(arg)
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except ValueError: # invalid literal for int()
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return path_list[-1] # Fail silently.
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return f"{path_list[0]}/…{path_list[-1][-length:]}"
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@register.simple_tag(takes_context=False)
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def get_book_cover_thumbnail(book, size="medium", ext="jpg"):
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"""Returns a book thumbnail at the specified size and extension,
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with fallback if needed"""
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if size == "":
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size = "medium"
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try:
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cover_thumbnail = getattr(book, f"cover_bw_book_{size}_{ext}")
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return cover_thumbnail.url
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except OSError:
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return static("images/no_cover.jpg")
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@register.filter(name="get_isni_bio")
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def get_isni_bio(existing, author):
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"""Returns the isni bio string if an existing author has an isni listed"""
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auth_isni = re.sub("\D","",str(author.isni))
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if len(existing) == 0:
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return ""
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for value in existing:
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if "bio" in value and auth_isni == re.sub("\D","",str(value["isni"])):
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return value["bio"]
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return ""
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@register.filter(name="remove_spaces")
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@stringfilter
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def remove_spaces(arg):
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"""Removes spaces from argument passed in"""
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return re.sub("\s","",str(arg))
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