models.py 8.67 KB
Newer Older
Skia's avatar
Skia committed
1
from django.db import models
2
from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin, UserManager, Group as AuthGroup
Skia's avatar
Skia committed
3
4
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone
5
6
from django.core import validators
from django.core.exceptions import ValidationError
7
from django.core.urlresolvers import reverse
8
from datetime import datetime
Skia's avatar
Skia committed
9

Skia's avatar
Skia committed
10
11
12
class User(AbstractBaseUser, PermissionsMixin):
    """
    Defines the base user class, useable in every app
Skia's avatar
Skia committed
13

Skia's avatar
Skia committed
14
15
16
    This is almost the same as the auth module AbstractUser since it inherits from it,
    but some fields are required, and the username is generated automatically with the
    name of the user (see generate_username()).
Skia's avatar
Skia committed
17

18
    Added field: nick_name, date_of_birth
Skia's avatar
Skia committed
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
    Required fields: email, first_name, last_name, date_of_birth
    """
    username = models.CharField(
        _('username'),
        max_length=254,
        unique=True,
        help_text=_('Required. 254 characters or fewer. Letters, digits and @/./+/-/_ only.'),
        validators=[
            validators.RegexValidator(
                r'^[\w.@+-]+$',
                _('Enter a valid username. This value may contain only '
                  'letters, numbers ' 'and @/./+/-/_ characters.')
            ),
        ],
        error_messages={
            'unique': _("A user with that username already exists."),
        },
    )
    first_name = models.CharField(_('first name'), max_length=30)
    last_name = models.CharField(_('last name'), max_length=30)
    email = models.EmailField(_('email address'), unique=True)
Skia's avatar
Skia committed
40
    date_of_birth = models.DateTimeField(_('date of birth'))
Skia's avatar
Skia committed
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
    nick_name = models.CharField(max_length=30, blank=True)
    is_staff = models.BooleanField(
        _('staff status'),
        default=False,
        help_text=_('Designates whether the user can log into this admin site.'),
    )
    is_active = models.BooleanField(
        _('active'),
        default=True,
        help_text=_(
            'Designates whether this user should be treated as active. '
            'Unselect this instead of deleting accounts.'
        ),
    )
    date_joined = models.DateTimeField(_('date joined'), default=timezone.now)

    objects = UserManager()

    USERNAME_FIELD = 'username'
Skia's avatar
Skia committed
60
    REQUIRED_FIELDS = ['email', 'first_name', 'last_name', 'date_of_birth']
Skia's avatar
Skia committed
61
62
63
64

    class Meta:
        verbose_name = _('user')
        verbose_name_plural = _('users')
Skia's avatar
Skia committed
65

Skia's avatar
Skia committed
66
67
68
69
70
71
    def get_absolute_url(self):
        """
        This is needed for black magic powered UpdateView's children
        """
        return reverse('core:user_profile', kwargs={'user_id': self.pk})

Skia's avatar
Skia committed
72
    def __str__(self):
Skia's avatar
Skia committed
73
74
        return self.username

Skia's avatar
Skia committed
75
76
77
78
79
80
81
82
83
84
85
    def to_dict(self):
        return self.__dict__

    def get_profile(self):
        return {
            "last_name": self.last_name,
            "first_name": self.first_name,
            "nick_name": self.nick_name,
            "date_of_birth": self.date_of_birth,
        }

Skia's avatar
Skia committed
86
87
88
89
90
91
92
93
94
95
96
    def get_full_name(self):
        """
        Returns the first_name plus the last_name, with a space in between.
        """
        full_name = '%s %s' % (self.first_name, self.last_name)
        return full_name.strip()

    def get_short_name(self):
        "Returns the short name for the user."
        return self.first_name

Skia's avatar
Skia committed
97
98
99
100
101
102
103
104
105
    def get_display_name(self):
        """
        Returns the display name of the user.
        A nickname if possible, otherwise, the full name
        """
        if self.nick_name != "":
            return self.nick_name
        return self.get_full_name()

Skia's avatar
Skia committed
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
    def email_user(self, subject, message, from_email=None, **kwargs):
        """
        Sends an email to this User.
        """
        send_mail(subject, message, from_email, [self.email], **kwargs)

    def generate_username(self):
        """
        Generates a unique username based on the first and last names.
        For example: Guy Carlier gives gcarlier, and gcarlier1 if the first one exists
        Returns the generated username
        """
        user_name = str(self.first_name[0]+self.last_name).lower()
        un_set = [u.username for u in User.objects.all()]
        if user_name in un_set:
            i = 1
            while user_name+str(i) in un_set:
                i += 1
            user_name += str(i)
        self.username = user_name
        return user_name
Skia's avatar
Skia committed
127

128
129
130
131
132
133
class Group(AuthGroup):
    def get_absolute_url(self):
        """
        This is needed for black magic powered UpdateView's children
        """
        return reverse('core:group_edit', kwargs={'group_id': self.pk})
Skia's avatar
Skia committed
134

135
136
137
138
139
140
141
142
class GroupManagedObject(models.Model):
    owner_group = models.ForeignKey(Group, related_name="owned_object", default=1)
    edit_group = models.ManyToManyField(Group, related_name="editable_object")
    view_group = models.ManyToManyField(Group, related_name="viewable_object")
    class Meta:
        abstract = True

class Page(GroupManagedObject, models.Model):
Skia's avatar
Skia committed
143
144
145
146
147
148
149
150
151
152
    """
    The page class to build a Wiki
    Each page may have a parent and it's URL is of the form my.site/page/<grd_pa>/<parent>/<mypage>
    It has an ID field, but don't use it, since it's only there for DB part, and because compound primary key is
    awkward!
    Prefere querying pages with Page.get_page_by_full_name()

    Be careful with the full_name attribute: this field may not be valid until you call save(). It's made for fast
    query, but don't rely on it when playing with a Page object, use get_full_name() instead!
    """
Skia's avatar
Skia committed
153
    name = models.CharField(_('page name'), max_length=30, blank=False)
154
155
156
157
# TODO: move title and content to PageRev class with a OneToOne field
    title = models.CharField(_("page title"), max_length=255, blank=True)
    content = models.TextField(_("page content"), blank=True)
    revision = models.PositiveIntegerField(_("current revision"), default=1)
Skia's avatar
Skia committed
158
    is_locked = models.BooleanField(_("page mutex"), default=False)
Skia's avatar
Skia committed
159
    parent = models.ForeignKey('self', related_name="children", null=True, blank=True, on_delete=models.SET_NULL)
Skia's avatar
Skia committed
160
161
162
    # Attention: this field may not be valid until you call save(). It's made for fast query, but don't rely on it when
    # playing with a Page object, use get_full_name() instead!
    full_name = models.CharField(_('page name'), max_length=255, blank=True)
Skia's avatar
Skia committed
163

Skia's avatar
Skia committed
164

Skia's avatar
Skia committed
165
    class Meta:
166
        unique_together = ('name', 'parent')
Skia's avatar
Skia committed
167
        permissions = (
Skia's avatar
Skia committed
168
            #("can_edit", "Can edit the page"),
169
            ("can_view", "Can view the page"),
Skia's avatar
Skia committed
170
171
        )

172
173
    @staticmethod
    def get_page_by_full_name(name):
Skia's avatar
Skia committed
174
175
176
177
        """
        Quicker to get a page with that method rather than building the request every time
        """
        return Page.objects.filter(full_name=name).first()
178
179
180
181
182
183

    def __init__(self, *args, **kwargs):
        super(Page, self).__init__(*args, **kwargs)

    def clean(self):
        """
Skia's avatar
Skia committed
184
        Cleans up only the name for the moment, but this can be used to make any treatment before saving the object
185
186
187
        """
        if '/' in self.name:
            self.name = self.name.split('/')[-1]
Skia's avatar
Skia committed
188
189
190
191
192
        if Page.objects.exclude(pk=self.pk).filter(full_name=self.get_full_name()).exists():
            raise ValidationError(
                _('Duplicate page'),
                code='duplicate',
            )
193
        super(Page, self).clean()
Skia's avatar
Skia committed
194
195
196
197
198
199
200
201
202
203
204
205
206
207
        if self.parent is not None and self in self.get_parent_list():
            raise ValidationError(
                _('Loop in page tree'),
                code='loop',
            )

    def get_parent_list(self):
        l = []
        p = self.parent
        while p is not None:
            l.append(p)
            p = p.parent
        return l

208
209
    def save(self, *args, **kwargs):
        self.full_clean()
Skia's avatar
Skia committed
210
211
        # This reset the full_name just before saving to maintain a coherent field quicker for queries than the
        # recursive method
Skia's avatar
Skia committed
212
        # It also update all the children to maintain correct names
Skia's avatar
Skia committed
213
        self.full_name = self.get_full_name()
Skia's avatar
Skia committed
214
215
        for c in self.children.all():
            c.save()
216
217
        super(Page, self).save(*args, **kwargs)

218
219
220
221
222
223
    def get_absolute_url(self):
        """
        This is needed for black magic powered UpdateView's children
        """
        return reverse('core:page', kwargs={'page_name': self.full_name})

Skia's avatar
Skia committed
224
    def __str__(self):
225
226
227
        return self.get_full_name()

    def get_full_name(self):
Skia's avatar
Skia committed
228
229
230
231
232
        """
        Computes the real full_name of the page based on its name and its parent's name
        You can and must rely on this function when working on a page object that is not freshly fetched from the DB
        (For example when treating a Page object coming from a form)
        """
Skia's avatar
Skia committed
233
234
235
        if self.parent is None:
            return self.name
        return '/'.join([self.parent.get_full_name(), self.name])
Skia's avatar
Skia committed
236
237

    def get_display_name(self):
Skia's avatar
Skia committed
238
        return self.get_full_name()
Skia's avatar
Skia committed
239

240