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models.py
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Tue, May 14, 22:59

models.py
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from django.db import models
from django.contrib.auth.models import User
import datetime
from django.utils.translation import gettext as _
# Ref: database_model_20210421_MB.drawio 21.04.2021
class Country(models.Model):
name = models.CharField(max_length = 120, null=True)
iso_code = models.CharField(max_length = 3, null=True)
def __str__(self):
return f"{self.name}"
class Meta:
ordering = ('name',)
class City(models.Model):
name = models.CharField(max_length = 120, null=True)
iso_code = models.CharField(max_length = 3, null=True)
state = models.CharField(max_length = 3, null=True)
def __str__(self):
return f"{self.name}"
class Meta:
ordering = ('name',)
class Language(models.Model):
name = models.CharField(max_length = 120, null=True)
iso_code = models.CharField(max_length = 3, null=True)
def __str__(self):
return f"{self.name}"
class Meta:
ordering = ('name',)
class Issn(models.Model):
PRINT = 1
ELECTRONIC = 2
OTHER = 3
TYPE_CHOICES = (
(PRINT, 'Print'),
(ELECTRONIC, 'Electronic'),
(OTHER, 'Other'),
)
issn = models.CharField(max_length = 9, null=False)
journal = models.ManyToManyField("Journal") # search journal with ISSN
issn_type = models.CharField(
choices = TYPE_CHOICES,
max_length=10,
blank=True
)
def __str__(self):
return f"{self.issn} for {self.issn_type}"
class Meta:
ordering = ('issn',)
class Oa(models.Model):
status = models.CharField(max_length=1000, null=True)
description = models.CharField(max_length=1000, null=True)
subscription = models.BooleanField(default=False)
accepted_manuscript = models.BooleanField(default=False)
apc = models.BooleanField(default=False)
final_version = models.BooleanField(default=False)
def __str__(self):
return f"{self.status}"
class Meta:
ordering = ('-subscription',)
class Publisher(models.Model):
name = models.CharField(max_length=1000, null=True)
# city = models.ManyToManyField("City")
city = models.CharField(max_length=100, null=True)
state = models.CharField(max_length = 3, null=True)
country = models.ManyToManyField("Country")
starting_year = models.IntegerField()
website = models.URLField(max_length=1000)
oa_policies = models.URLField(max_length=1000)
def __str__(self):
return f"{self.name}"
class Meta:
ordering = ('name',)
class Journal(models.Model):
name = models.CharField(max_length=800, null=True) # search journal with name
name_short_iso_4 = models.CharField(max_length=300, null=True)
publisher = models.ManyToManyField(Publisher)
website = models.URLField(max_length=300)
# issn = models.ManyToManyField("Issn") # search journal with ISSN
oa_options = models.URLField(max_length=1000)
oa_status = models.ForeignKey("Oa", on_delete=models.CASCADE)
starting_year = models.IntegerField()
def __str__(self):
return f"{self.name} from {self.website}"
class Meta:
ordering = ('name',)
class Institution(models.Model):
name = models.CharField(max_length=600, null=True)
website = models.URLField(max_length=600)
country = models.ManyToManyField("Country")
starting_year = models.IntegerField(null=True)
is_funder = models.BooleanField(default=False)
def __str__(self):
return f"{self.name}"
class Meta:
ordering = ('-name',)
class Version(models.Model):
description = models.CharField(max_length=300, null=False)
def __str__(self):
return f"{self.description}"
class Licence(models.Model):
name_or_abbrev = models.CharField(max_length=300, null=False)
website = models.URLField(max_length=600, null=True)
def __str__(self):
return f"{self.name_or_abbrev}"
class Cost_factor_type(models.Model):
name = models.CharField(max_length=300, null=False)
def __str__(self):
return f"{self.name}"
class Cost_factor(models.Model):
cost_factor_type = models.ManyToManyField(Cost_factor_type)
amount = models.IntegerField(null=False)
symbol = models.CharField(max_length=10, null=False)
def __str__(self):
return f"{self.amount} {self.symbol}"
class Term(models.Model):
version = models.ManyToManyField(Version)
cost_factor = models.ManyToManyField(Cost_factor)
embargo_months = models.IntegerField(null=False)
ir_archiving = models.BooleanField(default=False)
licence = models.ManyToManyField(Licence)
comment = models.CharField(max_length=600, null=True)
source = models.URLField(max_length=600, null=True)
class ConditionType(models.Model):
condition_issuer = models.CharField(max_length=300, null=False)
def __str__(self):
return f"{self.condition_issuer}"
class ConditionSet(models.Model):
condition_type = models.ForeignKey(ConditionType, on_delete=models.CASCADE, blank=True, null=True)
organization = models.ManyToManyField(
Institution,
through='OrganizationCondition',
through_fields=('condition_set', 'organization')
)
journal = models.ManyToManyField(
Journal,
through='JournalCondition',
through_fields=('condition_set', 'journal')
)
term = models.ManyToManyField(Term)
comment = models.CharField(max_length=100, null=True, default=":-)")
class OrganizationCondition(models.Model):
organization = models.ForeignKey(Institution, on_delete=models.CASCADE, blank=True, null=True)
condition_set = models.ForeignKey(ConditionSet, on_delete=models.CASCADE, blank=True, null=True)
valid_from = models.DateField(blank=True, null=True)
valid_until = models.DateField(blank=True, null=True)
class Meta:
ordering = ('-valid_from',)
class JournalCondition(models.Model):
journal = models.ForeignKey(Journal, on_delete=models.CASCADE, blank=True, null=True)
condition_set = models.ForeignKey(ConditionSet, on_delete=models.CASCADE, blank=True, null=True)
valid_from = models.DateField(blank=True, null=True)
valid_until = models.DateField(blank=True, null=True)
class Meta:
ordering = ('-valid_from',)

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