Python models.FileField方法代码示例

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def handle(self, *args, **options):
        app_name = options['app']
        model_name = options['model']
        field_name = options['field']

        model = apps.get_model(app_name, model_name)
        fields = model._meta.get_fields()
        matching_fields = [f for f in fields if isinstance(f, models.FileField) and f.name == field_name]
        field = matching_fields[0]
        storage = field.storage

        for o in model.objects.all():
            # threads aren't usually interrupted: https://stackoverflow.com/a/842567/6871666
            t = Thread(target=move_file, args=(model, storage, field_name, field, o))
            t.start()
            t.join() 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def display_for_field(value, field):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon
    from django.contrib.admin.views.main 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(timezone.template_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, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return smart_text(value) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def display_for_field(value, field, empty_value_display):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon

    if getattr(field, 'flatchoices', None):
        return dict(field.flatchoices).get(value, empty_value_display)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, (models.BooleanField, models.NullBooleanField)):
        return _boolean_icon(value)
    elif value is None:
        return empty_value_display
    elif isinstance(field, models.DateTimeField):
        return formats.localize(timezone.template_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.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return display_for_value(value, empty_value_display) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def display_for_field(value, field, empty_value_display):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon

    if getattr(field, 'flatchoices', None):
        return dict(field.flatchoices).get(value, empty_value_display)
    # BooleanField needs special-case null-handling, so it comes before the
    # general null test.
    elif isinstance(field, models.BooleanField):
        return _boolean_icon(value)
    elif value is None:
        return empty_value_display
    elif isinstance(field, models.DateTimeField):
        return formats.localize(timezone.template_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.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return display_for_value(value, empty_value_display) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def display_for_field(value, field, empty_value_display):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon

    if getattr(field, 'flatchoices', None):
        return dict(field.flatchoices).get(value, empty_value_display)
    # 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_value_display
    elif isinstance(field, models.DateTimeField):
        return formats.localize(timezone.template_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.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return display_for_value(value, empty_value_display) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def display_for_field(value, field, empty_value_display):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon

    if field.flatchoices:
        return dict(field.flatchoices).get(value, empty_value_display)
    # 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_value_display
    elif isinstance(field, models.DateTimeField):
        return formats.localize(timezone.template_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.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return smart_text(value) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
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, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return smart_text(value) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def get_file_fields():
    """
        Get all fields which are inherited from FileField
    """

    # get models

    all_models = apps.get_models()

    # get fields

    fields = []

    for model in all_models:
        for field in model._meta.get_fields():
            if isinstance(field, models.FileField):
                fields.append(field)

    return fields 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def handle_field(self, obj, field):
        if isinstance(field, models.FileField):
            value = field.value_from_object(obj)
            self._current[field.name] = value.url if value else ''
        elif isinstance(field, models.DecimalField):
            value = field.value_from_object(obj)
            self._current[field.name] = float(value) if value else value
        else:
            super(TrackerSerializer, self).handle_field(obj, field) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def sendfile(self, upfile, response):
        """
        Send the contents of the file as the response, given a FileField object to read from.
        """
        path, filename = os.path.split(upfile.name)
        response['Content-Disposition'] = 'inline; filename="' + filename + '"'
        try:
            upfile.open('rb')
        except IOError:
            response['Content-type'] = "text/plain"
            response.write("File missing. It has likely been archived.")
            return

        for data in upfile:
            response.write(data) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def add_arguments(self, parser):
        parser.add_argument('app', type=str, help='the app to work in')
        parser.add_argument('model', type=str, help='the model class to work on')
        parser.add_argument('field', type=str, help='the FileField in the model') 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def _done(self):
        cleaned_data = self.get_all_cleaned_data()
        exclude = self.admin_view.exclude

        opts = self.admin_view.opts
        instance = self.admin_view.org_obj or self.admin_view.model()

        file_field_list = []
        for f in opts.fields:
            if not f.editable or isinstance(f, models.AutoField) \
                    or not f.name in cleaned_data:
                continue
            if exclude and f.name in exclude:
                continue
            # Defer saving file-type fields until after the other fields, so a
            # callable upload_to can use the values from other fields.
            if isinstance(f, models.FileField):
                file_field_list.append(f)
            else:
                f.save_form_data(instance, cleaned_data[f.name])

        for f in file_field_list:
            f.save_form_data(instance, cleaned_data[f.name])

        instance.save()

        for f in opts.many_to_many:
            if f.name in cleaned_data:
                f.save_form_data(instance, cleaned_data[f.name])

        self.admin_view.new_obj = instance 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def display_for_field(value, field, html=True, only_date=True):
    if getattr(field, 'flatchoices', None):
        if html and field.name == 'color' and value:
            return make_color_icon(value)
        return dict(field.flatchoices).get(value, '')
    elif html and (isinstance(field, (models.BooleanField, models.NullBooleanField))):
        return make_boolean_icon(value)
    elif isinstance(field, (models.BooleanField, models.NullBooleanField)):
        boolchoice = {False: "否", True: "是"}
        return boolchoice.get(value)
    elif value is None:
        return ""
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, (models.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.ForeignKey) and value:
        rel_obj = field.related_model.objects.get(pk=value)
        if html and COLOR_FK_FIELD and isinstance(rel_obj, Option):
            text_color = rel_obj.color
            if not text_color:
                text_color = 'text-info'
            safe_value = format_html(
                '<span class="text-{}">{}</span>', text_color, rel_obj.text)
            return safe_value
        return force_text(rel_obj)
    elif isinstance(field, models.TextField) and value:
        return force_text(value)
    elif isinstance(field, models.DateTimeField):
        if only_date:
            return formats.date_format(value)
        return formats.localize(timezone.template_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return display_for_value(value) 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def construct_instance(form, instance, fields=None, exclude=None):
    """
    Constructs and returns a model instance from the bound ``form``'s
    ``cleaned_data``, but does not save the returned instance to the
    database.
    """
    from django.db import models
    opts = instance._meta

    cleaned_data = form.cleaned_data
    file_field_list = []
    for f in opts.fields:
        if not f.editable or isinstance(f, models.AutoField) \
                or f.name not in cleaned_data:
            continue
        if fields is not None and f.name not in fields:
            continue
        if exclude and f.name in exclude:
            continue
        # Defer saving file-type fields until after the other fields, so a
        # callable upload_to can use the values from other fields.
        if isinstance(f, models.FileField):
            file_field_list.append(f)
        else:
            f.save_form_data(instance, cleaned_data[f.name])

    for f in file_field_list:
        f.save_form_data(instance, cleaned_data[f.name])

    return instance 

# 需要导入模块: from django.db import models [as 别名]
# 或者: from django.db.models import FileField [as 别名]
def render_change_form(self, request, context, add=False, change=False, form_url='', obj=None):
        opts = self.model._meta
        app_label = opts.app_label
        preserved_filters = self.get_preserved_filters(request)
        form_url = add_preserved_filters({'preserved_filters': preserved_filters, 'opts': opts}, form_url)
        view_on_site_url = self.get_view_on_site_url(obj)
        context.update({
            'add': add,
            'change': change,
            'has_add_permission': self.has_add_permission(request),
            'has_change_permission': self.has_change_permission(request, obj),
            'has_delete_permission': self.has_delete_permission(request, obj),
            'has_file_field': True,  # FIXME - this should check if form or formsets have a FileField,
            'has_absolute_url': view_on_site_url is not None,
            'absolute_url': view_on_site_url,
            'form_url': form_url,
            'opts': opts,
            'content_type_id': get_content_type_for_model(self.model).pk,
            'save_as': self.save_as,
            'save_on_top': self.save_on_top,
            'to_field_var': TO_FIELD_VAR,
            'is_popup_var': IS_POPUP_VAR,
            'app_label': app_label,
        })
        if add and self.add_form_template is not None:
            form_template = self.add_form_template
        else:
            form_template = self.change_form_template

        request.current_app = self.admin_site.name

        return TemplateResponse(request, form_template or [
            "admin/%s/%s/change_form.html" % (app_label, opts.model_name),
            "admin/%s/change_form.html" % app_label,
            "admin/change_form.html"
        ], context)