from django.db import models
from jayparlar.tags.models import TaggedItem

# Create your models here.
#


class Author(models.Model):
    first_name = models.CharField(maxlength=50, blank=True)
    last_name = models.CharField(maxlength=50)

    class Admin:
        pass

    class Meta:
        ordering = ['last_name']
        
    def __str__(self):
        return self.last_name + ", " + self.first_name

    def get_absolute_url(self):
        return "/papers/authors/%d" % self.id
        
class Paper(models.Model):
    title = models.CharField(maxlength=200)
    authors = models.ManyToManyField(Author)
    pub_date = models.DateField()
    discovered_date = models.DateField()
    tags = models.GenericRelation(TaggedItem)
    description = models.TextField()
    bibtex = models.TextField(blank=True)
    pdf = models.FileField(upload_to="uploads/papers", blank=True)

    def get_absolute_url(self):
        return "/papers/paper/%d" % self.id
    
    class Admin:
        list_display = ('title','pub_date', 'tag_list')
   
        js = ["js/MochiKit/MochiKit.js",
              "js/modify_paper_admin.js"]
    
    def tag_list(self):
        return ", ".join([tag.tag for tag in self.tags.all()])
        
    def __str__(self):
        return self.title