Python django.db.models.ManyToManyRel() Examples

The following are 30 code examples of django.db.models.ManyToManyRel(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module django.db.models , or try the search function .
Example #1
Source File: util.py    From ImitationTmall_Django with GNU General Public License v3.0 6 votes vote down vote up 
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.rel, models.ManyToManyRel):
        return ', '.join([smart_unicode(obj) for obj in value.all()])
    else:
        return smart_unicode(value)
Example #2
Source File: util.py    From Dailyfresh-B2C with Apache License 2.0 6 votes vote down vote up 
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.remote_field, models.ManyToManyRel):
        return ', '.join([smart_text(obj) for obj in value.all()])
    else:
        return smart_text(value)
Example #3
Source File: util.py    From Mxonline3 with Apache License 2.0 6 votes vote down vote up 
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.remote_field, models.ManyToManyRel):
        return ', '.join([smart_text(obj) for obj in value.all()])
    else:
        return smart_text(value)
Example #4
Source File: util.py    From online with GNU Affero General Public License v3.0 6 votes vote down vote up 
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.remote_field, models.ManyToManyRel):
        return ', '.join([smart_text(obj) for obj in value.all()])
    else:
        return smart_text(value)
Example #5
Source File: util.py    From imoocc with GNU General Public License v2.0 6 votes vote down vote up 
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.rel, models.ManyToManyRel):
        return ', '.join([smart_text(obj) for obj in value.all()])
    else:
        return smart_text(value)
Example #6
Source File: relate.py    From devops with MIT License 5 votes vote down vote up 
def __init__(self, admin_view, lookup, value):
        self.admin_view = admin_view
        self.org_model = admin_view.model
        self.opts = admin_view.opts
        self.lookup = lookup
        self.value = value

        parts = lookup.split(LOOKUP_SEP)
        field = self.opts.get_field_by_name(parts[0])[0]

        if not hasattr(field, 'rel') and not isinstance(field, ForeignObjectRel):
            raise Exception(u'Relate Lookup field must a related field')

        if hasattr(field, 'rel'):
            self.to_model = field.rel.to
            self.rel_name = field.rel.get_related_field().name
            self.is_m2m = isinstance(field.rel, models.ManyToManyRel)
        else:
            self.to_model = field.model
            self.rel_name = self.to_model._meta.pk.name
            self.is_m2m = False

        to_qs = self.to_model._default_manager.get_queryset()
        self.to_objs = to_qs.filter(**{self.rel_name: value}).all()

        self.field = field
Example #7
Source File: schema.py    From djangoql with MIT License 5 votes vote down vote up 
def get_field_instance(self, model, field_name):
        field = model._meta.get_field(field_name)
        field_kwargs = {'model': model, 'name': field.name}
        if field.is_relation:
            if not field.related_model:
                # GenericForeignKey
                return
            if self.excluded(field.related_model):
                return
            field_cls = RelationField
            field_kwargs['related_model'] = field.related_model
        else:
            field_cls = self.get_field_cls(field)
        if isinstance(field, (ManyToOneRel, ManyToManyRel, ForeignObjectRel)):
            # Django 1.8 doesn't have .null attribute for these fields
            field_kwargs['nullable'] = True
        else:
            field_kwargs['nullable'] = field.null
        field_kwargs['suggest_options'] = (
            field.name in self.suggest_options.get(model, [])
        )
        return field_cls(**field_kwargs)
Example #8
Source File: validation.py    From luscan-devel with GNU General Public License v2.0 5 votes vote down vote up 
def validate_local_fields(e, opts, field_name, fields):
    from django.db import models

    if not isinstance(fields, collections.Sequence):
        e.add(opts, 'all %s elements must be sequences' % field_name)
    else:
        for field in fields:
            try:
                f = opts.get_field(field, many_to_many=True)
            except models.FieldDoesNotExist:
                e.add(opts, '"%s" refers to %s, a field that doesn\'t exist.' % (field_name, field))
            else:
                if isinstance(f.rel, models.ManyToManyRel):
                    e.add(opts, '"%s" refers to %s. ManyToManyFields are not supported in %s.' % (field_name, f.name, field_name))
                if f not in opts.local_fields:
                    e.add(opts, '"%s" refers to %s. This is not in the same model as the %s statement.' % (field_name, f.name, field_name))
Example #9
Source File: util.py    From Mxonline3 with Apache License 2.0 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'remote_field') and
         isinstance(field.remote_field, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False
Example #10
Source File: xversion.py    From Mxonline3 with Apache License 2.0 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #11
Source File: utils.py    From graphene-django with MIT License 5 votes vote down vote up 
def get_reverse_fields(model, local_field_names):
    for name, attr in model.__dict__.items():
        # Don't duplicate any local fields
        if name in local_field_names:
            continue

        # "rel" for FK and M2M relations and "related" for O2O Relations
        related = getattr(attr, "rel", None) or getattr(attr, "related", None)
        if isinstance(related, models.ManyToOneRel):
            yield (name, related)
        elif isinstance(related, models.ManyToManyRel) and not related.symmetrical:
            yield (name, related)
Example #12
Source File: util.py    From imoocc with GNU General Public License v2.0 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'rel') and
         isinstance(field.rel, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False
Example #13
Source File: xversion.py    From imoocc with GNU General Public License v2.0 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #14
Source File: xversion.py    From devops with MIT License 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version.object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #15
Source File: util.py    From StormOnline with Apache License 2.0 5 votes vote down vote up 
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.rel, models.ManyToManyRel):
        return ', '.join([smart_text(obj) for obj in value.all()])
    else:
        return smart_text(value)
Example #16
Source File: util.py    From online with GNU Affero General Public License v3.0 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'rel') and
         isinstance(field.rel, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False
Example #17
Source File: xversion.py    From online with GNU Affero General Public License v3.0 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #18
Source File: util.py    From Dailyfresh-B2C with Apache License 2.0 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'rel') and
         isinstance(field.rel, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False
Example #19
Source File: xversion.py    From Dailyfresh-B2C with Apache License 2.0 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #20
Source File: util.py    From ImitationTmall_Django with GNU General Public License v3.0 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'rel') and
         isinstance(field.rel, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False
Example #21
Source File: xversion.py    From ImitationTmall_Django with GNU General Public License v3.0 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #22
Source File: xversion.py    From myblog with GNU Affero General Public License v3.0 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #23
Source File: util.py    From StormOnline with Apache License 2.0 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'rel') and
         isinstance(field.rel, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False
Example #24
Source File: xversion.py    From StormOnline with Apache License 2.0 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #25
Source File: configuration.py    From jet-bridge with MIT License 5 votes vote down vote up 
def get_related_models(self, model):
        fields = model._meta.get_fields(include_hidden=True)
        def filter_fields(x):
            if any(map(lambda rel: isinstance(x, rel), [
                models.OneToOneRel,
                models.OneToOneField,
                models.ManyToOneRel,
                models.ManyToManyField,
                models.ManyToManyRel
            ])):
                return True
            return False
        return list(map(lambda x: x.related_model, filter(filter_fields, fields)))
Example #26
Source File: configuration.py    From jet-bridge with MIT License 5 votes vote down vote up 
def get_model_fields(self, model):
        fields = model._meta.get_fields()

        def filter_fields(x):
            if any(map(lambda rel: isinstance(x, rel), [
                models.ManyToOneRel,
                models.ManyToManyField,
                models.ManyToManyRel,
                GenericRel,
                GenericForeignKey,
                GenericRelation
            ])):
                return False
            return True
        return filter(filter_fields, fields)
Example #27
Source File: util.py    From weibo-analysis-system with MIT License 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'remote_field') and
         isinstance(field.remote_field, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False
Example #28
Source File: util.py    From weibo-analysis-system with MIT License 5 votes vote down vote up 
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.remote_field, models.ManyToManyRel):
        return ', '.join([smart_text(obj) for obj in value.all()])
    else:
        return smart_text(value)
Example #29
Source File: xversion.py    From weibo-analysis-system with MIT License 5 votes vote down vote up 
def get_version_object(self, version):
        obj_version = version._object_version
        obj = obj_version.object
        obj._state.db = self.obj._state.db

        for field_name, pks in obj_version.m2m_data.items():
            f = self.opts.get_field(field_name)
            if f.rel and isinstance(f.rel, models.ManyToManyRel):
                setattr(obj, f.name, f.rel.to._default_manager.get_query_set(
                ).filter(pk__in=pks).all())

        detail = self.get_model_view(DetailAdminUtil, self.model, obj)

        return obj, detail
Example #30
Source File: util.py    From myblog with GNU Affero General Public License v3.0 5 votes vote down vote up 
def lookup_needs_distinct(opts, lookup_path):
    """
    Returns True if 'distinct()' should be used to query the given lookup path.
    """
    field_name = lookup_path.split('__', 1)[0]
    field = opts.get_field(field_name)
    if ((hasattr(field, 'rel') and
         isinstance(field.rel, models.ManyToManyRel)) or
        (is_related_field(field) and
         not field.field.unique)):
        return True
    return False