""" Context processors """

from . import models


def sidebar_years(req):
    avail_years = models.PublicationYear.objects.all()
    publi_years = [year for year in avail_years if year.publis().count() > 0]

    num_special_publications = models.Publication.objects.filter(
        is_special=True
    ).count()

    return {
        "publication_years": publi_years,
        "has_special_publications": num_special_publications > 0,
    }