104 lines
3.1 KiB
Python
104 lines
3.1 KiB
Python
import locale
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import logging
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import os
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from os.path import splitext, basename
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import ghostscript
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from django.conf import settings
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from django.core.validators import ValidationError
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from django.db import models
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from django.urls import reverse
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from django.utils import timezone
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from django.utils.translation import gettext_lazy as _
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logger = logging.getLogger("blackboard")
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class JobPosting(models.Model):
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company_name = models.CharField(verbose_name="Firmenname", max_length=128)
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job_name = models.CharField(verbose_name="Berufsbezeichnung", max_length=128)
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salary = models.DecimalField(
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verbose_name="Gehalt",
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max_digits=6,
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decimal_places=1,
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)
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number_of_hours = models.DecimalField(
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default=40,
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verbose_name="Stundenanzahl",
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max_digits=3,
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decimal_places=1,
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)
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pdf_location = models.FileField(
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verbose_name="Stellenausschreibung", upload_to="uploads/blackboard/pdf/"
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)
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pdf_thumb_location = models.CharField(max_length=128)
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publish_date = models.DateField(
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verbose_name="Veröffentlichung", default=timezone.now
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)
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all_job_postings = models.Manager()
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class Meta:
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verbose_name = "Stellenausschreibung"
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verbose_name_plural = "Stellenausschreibungen"
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def __str__(self):
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return str(self.publish_date) + "_" + self.company_name + "_" + self.job_name
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def get_absolute_url(self):
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return reverse("blackboard")
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def save(self, *args, **kwargs):
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super().save(*args, **kwargs)
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if not os.path.exists(settings.MEDIA_ROOT + "uploads/blackboard/thumb/"):
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os.makedirs(settings.MEDIA_ROOT + "uploads/blackboard/thumb/")
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pdf_thumb_location_full = (
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settings.MEDIA_ROOT
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+ "uploads/blackboard/thumb/"
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+ splitext(basename(self.pdf_location.name))[0]
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+ ".jpg"
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)
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self.pdf_thumb_location = (
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"/files/uploads/blackboard/thumb/"
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+ splitext(basename(self.pdf_location.name))[0]
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+ ".jpg"
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)
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self.pdf2jpeg(self.pdf_location.path, pdf_thumb_location_full)
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logger.info("SavenThumbAs: " + self.pdf_thumb_location)
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super().save(*args, **kwargs)
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def clean(self):
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count = 0
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for i in self.pdf_location.name:
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if i == ".":
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count = count + 1
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if count > 1: # if more than one dot in filename
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raise ValidationError(_("Keine Dateien mit >1 Punkten im Namen erlaubt."))
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def pdf2jpeg(self, pdf_input_path, jpeg_output_path):
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args = [
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"pef2jpeg", # actual value doesn't matter
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"-dNOPAUSE",
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"-sDEVICE=jpeg",
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"-dDEVICEWIDTHPOINTS=600",
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"-dDEVICEHEIGHTPOINTS=800",
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"-sOutputFile=" + jpeg_output_path,
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pdf_input_path,
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]
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encoding = locale.getpreferredencoding()
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args = [a.encode(encoding) for a in args]
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# ghostscript.Ghostscript(*args)
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with ghostscript.Ghostscript(*args) as g:
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ghostscript.cleanup()
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