本文整理汇总了Python中eztables.forms.DatatablesForm类的典型用法代码示例。如果您正苦于以下问题：Python DatatablesForm类的具体用法？Python DatatablesForm怎么用？Python DatatablesForm使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了DatatablesForm类的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_invalid_sorting_parameters
def test_invalid_sorting_parameters(self):
'''Should not validate invalid sorting parameters'''
form = DatatablesForm({
'sEcho': '1',
'iColumns': '5',
'iDisplayStart': '0',
'iDisplayLength': '10',
'sSearch': '',
'bRegex': 'false',
'iSortingCols': '1',
})
self.assertFalse(form.is_valid())示例2: process_dt_response
def process_dt_response(self, data):
self.form = DatatablesForm(data)
if self.form.is_valid():
self.object_list = self.get_queryset().values(*self.get_db_fields())
return self.render_to_response(self.form)
else:
return HttpResponseBadRequest()示例3: test_valid_extra_parameters
def test_valid_extra_parameters(self):
'''Should validate with extra parameters'''
form = DatatablesForm({
'sEcho': '1',
'iColumns': '5',
'iDisplayStart': '0',
'iDisplayLength': '10',
'sSearch': '',
'bRegex': 'false',
'iSortingCols': '1',
'mDataProp_0': '0',
'mDataProp_1': '1',
'mDataProp_2': '2',
'mDataProp_3': '3',
'mDataProp_4': '4',
'sSearch_0': 's0',
'sSearch_1': 's1',
'sSearch_2': 's2',
'sSearch_3': 's3',
'sSearch_4': 's4',
'bRegex_0': 'false',
'bRegex_1': 'false',
'bRegex_2': 'false',
'bRegex_3': 'false',
'bRegex_4': 'false',
'bSearchable_0': 'true',
'bSearchable_1': 'true',
'bSearchable_2': 'true',
'bSearchable_3': 'true',
'bSearchable_4': 'true',
'bSortable_0': 'true',
'bSortable_1': 'true',
'bSortable_2': 'true',
'bSortable_3': 'true',
'bSortable_4': 'true',
'iSortCol_0': '0',
'sSortDir_0': 'asc',
})
self.assertTrue(form.is_valid())
for idx in xrange(5):
self.assertEqual(form.cleaned_data['mDataProp_%s' % idx], '%s' % idx)
self.assertEqual(form.cleaned_data['sSearch_%s' % idx], 's%s' % idx)
self.assertEqual(form.cleaned_data['bRegex_%s' % idx], False)
self.assertEqual(form.cleaned_data['bSearchable_%s' % idx], True)
self.assertEqual(form.cleaned_data['bSortable_%s' % idx], True)
self.assertEqual(form.cleaned_data['iSortCol_0'], 0)
self.assertEqual(form.cleaned_data['sSortDir_0'], 'asc')示例4: test_base_parameters
def test_base_parameters(self):
'''Should validate base parameters'''
form = DatatablesForm({
'sEcho': '1',
'iColumns': '5',
'iDisplayStart': '0',
'iDisplayLength': '10',
'sSearch': '',
'bRegex': 'false',
'iSortingCols': '1',
'iSortCol_0': '0',
'sSortDir_0': 'asc',
})
self.assertTrue(form.is_valid())
self.assertEqual(form.cleaned_data['sEcho'], '1')
self.assertEqual(form.cleaned_data['iColumns'], 5)
self.assertEqual(form.cleaned_data['iDisplayStart'], 0)
self.assertEqual(form.cleaned_data['iDisplayLength'], 10)
self.assertEqual(form.cleaned_data['sSearch'], '')
self.assertEqual(form.cleaned_data['bRegex'], False)
self.assertEqual(form.cleaned_data['iSortingCols'], 1)示例5: process_dt_response
def process_dt_response(self, data):
# Switch between server-side and client-side mode. Given that
# 'iColumns' is a needed server-side parameter, if it doesn't exist we
# can safely switch to client-side.
if 'iColumns' in data:
self.generate_search_sets(data)
self.form = DatatablesForm(data)
if not self.form.is_valid():
return HttpResponseBadRequest()
else:
self.form = None
self.ServerSide = False
self.qs = self.get_queryset()
self.set_object_list()
return self.render_to_response(self.form)示例6: process_dt_response
def process_dt_response(self, data):
self.form = DatatablesForm(data)
if self.form.is_valid():
#flush_transaction()
self.object_list = self.get_queryset().values(*self.get_db_fields())
#print 'get_queryset: %s' % str(self.get_queryset)
self.field_choices_dict = get_field_choices(self.get_queryset()[:1], self.get_db_fields())
#field_choices_dict={}
#print '####################################################################################################################'
#print '###object_list: %s, type: %s' % (self.object_list, type(self.object_list))
#self.object_list = get_object_list_display(self.object_list, field_choices_dict)
#print '********************************************************************************************************************'
#print '***object_list: %s, type: %s' % (self.object_list, type(self.object_list))
#print 'object_list: %s' % str(object_list)
#print 'field_choices_dict: %s' % str(field_choices_dict)
#print 'object_list_display: %s' % str(object_list_display)
#self.object_list = self.get_queryset().values(*self.get_db_fields())
#self.object_list = self.object_list_display
return self.render_to_response(self.form)
else:
return HttpResponseBadRequest()示例7: DatatablesDisplayFieldsMixin
class DatatablesDisplayFieldsMixin(object):
display_fields = None
def get_row(self, row):
"""Format a single row if necessary.
:param row: The row to format.
:raises: `ImproperlyConfigured` exception is class does not have a
display_fields member.
:returns: A list of data.
"""
if self.display_fields is None:
raise ImproperlyConfigured(
u"`DatatablesDisplayMixin` requires a display_fields tuple to"
" be defined.")
return [getattr(row, name) for field, name in self.display_fields if
field in self.fields]
def process_dt_response(self, data):
self.form = DatatablesForm(data)
if self.form.is_valid():
self.object_list = self.get_queryset()
return self.render_to_response(self.form)
else:
return HttpResponseBadRequest()
def global_search(self, queryset, excludes=None):
"""Filter a queryset using a global search.
:param queryset: The queryset to filter.
:returns: A filtered queryset.
"""
qs = copy.deepcopy(queryset)
qs2 = copy.deepcopy(queryset)
zero_start_term = False
search = search_str = self.dt_data['sSearch']
fields = self.get_db_fields()
if excludes:
for exclude in excludes:
fields.remove(exclude) if exclude in fields else None
if search:
if self.dt_data['bRegex']:
criterions = [Q(**{'%s__iregex' % field: search})
for field in fields
if self.can_regex(field)]
if len(criterions) > 0:
search = reduce(or_, criterions)
queryset = queryset.filter(search)
else:
for term in search.split():
if term.startswith(u'0'):
zero_start_term = True
criterions = (Q(**{'%s__icontains' % field: term})
for field in fields)
search = reduce(or_, criterions)
queryset = queryset.filter(search)
if zero_start_term:
for term in search_str.split():
try:
term = int(term)
except ValueError:
pass
else:
criterions = (Q(**{'%s__istartswith' % field: term})
for field in fields)
search = reduce(or_, criterions)
qs = qs.filter(search)
queryset = qs2.filter(Q(pk__in=qs.values('pk'))
| Q(pk__in=queryset.values('pk')))
return queryset示例8: DatatablesView
class DatatablesView(MultipleObjectMixin, View):
'''
Render a paginated server-side Datatables JSON view.
See: http://www.datatables.net/usage/server-side
'''
fields = []
_db_fields = None
def post(self, request, *args, **kwargs):
return self.process_dt_response(request.POST)
def get(self, request, *args, **kwargs):
return self.process_dt_response(request.GET)
def process_dt_response(self, data):
self.form = DatatablesForm(data)
if self.form.is_valid():
self.object_list = self.get_queryset()
return self.render_to_response(self.form)
else:
return HttpResponseBadRequest()
def get_db_fields(self):
if not self._db_fields:
self._db_fields = []
fields = self.fields.values() if isinstance(self.fields, dict) else self.fields
for field in fields:
if callable(field):
continue
elif RE_FORMATTED.match(field):
self._db_fields.extend(RE_FORMATTED.findall(field))
else:
self._db_fields.append(field)
return self._db_fields
@property
def dt_data(self):
return self.form.cleaned_data
def get_field(self, index):
if isinstance(self.fields, dict):
return self.fields[self.dt_data['mDataProp_%s' % index]]
else:
return self.fields[index]
def can_regex(self, field):
'''Test if a given field supports regex lookups'''
from django.conf import settings
if settings.DATABASES['default']['ENGINE'].endswith('sqlite3'):
return not isinstance(get_real_field(self.model, field), UNSUPPORTED_REGEX_FIELDS)
else:
return True
def get_orders(self):
'''Get ordering fields for ``QuerySet.order_by``'''
orders = []
iSortingCols = self.dt_data['iSortingCols']
dt_orders = [(self.dt_data['iSortCol_%s' % i], self.dt_data['sSortDir_%s' % i]) for i in xrange(iSortingCols)]
for field_idx, field_dir in dt_orders:
direction = '-' if field_dir == DESC else ''
if hasattr(self, 'sort_col_%s' % field_idx):
method = getattr(self, 'sort_col_%s' % field_idx)
result = method(direction)
if isinstance(result, (bytes, text_type)):
orders.append(result)
else:
orders.extend(result)
else:
field = self.get_field(field_idx)
if RE_FORMATTED.match(field):
tokens = RE_FORMATTED.findall(field)
orders.extend(['%s%s' % (direction, token) for token in tokens])
else:
orders.append('%s%s' % (direction, field))
return orders
def global_search(self, queryset):
'''Filter a queryset with global search'''
search = self.dt_data['sSearch']
if search:
if self.dt_data['bRegex']:
criterions = [
Q(**{'%s__iregex' % field: search})
for field in self.get_db_fields()
if self.can_regex(field)
]
if len(criterions) > 0:
search = reduce(or_, criterions)
queryset = queryset.filter(search)
else:
for term in search.split():
criterions = (Q(**{'%s__icontains' % field: term}) for field in self.get_db_fields())
search = reduce(or_, criterions)
queryset = queryset.filter(search)
return queryset
def column_search(self, queryset):
'''Filter a queryset with column search'''
#.........这里部分代码省略.........
示例9: DatatablesView
class DatatablesView(MultipleObjectMixin, View):
'''
Render a paginated server-side Datatables JSON view.
See: http://www.datatables.net/usage/server-side
'''
fields = []
_db_fields = None
ServerSide = True
_formatted_fields = False
filters = {}
def post(self, request, *args, **kwargs):
return self.process_dt_response(request.POST)
def get(self, request, *args, **kwargs):
return self.process_dt_response(request.GET)
def process_dt_response(self, data):
# Switch between server-side and client-side mode. Given that
# 'iColumns' is a needed server-side parameter, if it doesn't exist we
# can safely switch to client-side.
if 'iColumns' in data:
self.generate_search_sets(data)
self.form = DatatablesForm(data)
if not self.form.is_valid():
return HttpResponseBadRequest()
else:
self.form = None
self.ServerSide = False
self.qs = self.get_queryset()
self.set_object_list()
return self.render_to_response(self.form)
def set_object_list(self):
if isinstance(self.fields, dict):
self.object_list = self.qs.values(*self.get_db_fields())
else:
self.object_list = self.qs.values_list(*self.get_db_fields())
def get_db_fields(self):
if not self._db_fields:
self._db_fields = []
fields = self.fields.values() if isinstance(self.fields, dict) else self.fields
for field in fields:
if RE_FORMATTED.match(field):
self._formatted_fields = True
self._db_fields.extend(RE_FORMATTED.findall(field))
else:
self._db_fields.append(field)
return self._db_fields
@property
def dt_data(self):
return self.form.cleaned_data
def get_field(self, index):
if isinstance(self.fields, dict):
return self.fields[self.dt_data['mDataProp_%s' % index]]
else:
return self.fields[index]
def can_regex(self, field):
'''Test if a given field supports regex lookups'''
from django.conf import settings
if settings.DATABASES['default']['ENGINE'].endswith('sqlite3'):
return not isinstance(get_real_field(self.model, field), UNSUPPORTED_REGEX_FIELDS)
else:
return True
def generate_search_sets(self, request):
"""Generate search sets from DataTables request.
Search sets are lists of key-value pairs (in tuple format) that define
the search space for the column search function and custom filter
functions. These lists are generated from the DataTables HTTP request
using the following method:
* If the request, has an argument that starts with "sSearch_" and whose
value is not empty, then we decide on which search set it will be
added.
* The arguments that are added in the column search set must have as
suffix a number that corresponds to a table column.
* All other arguments are added in the filter search set.
Note: The reason why we use the values of the HTTP request instead of
the values of form.cleaned_data is because we cannot always know the
filter name, i.e. what is followed after "sSearch_", which means that
we cannot create a form field for it.
"""
self.column_set = []
self.filter_set = {}
for param, value in request.iteritems():
if not param.startswith("sSearch_"):
continue
if not value:
continue
_, search = param.split("_", 1)
#.........这里部分代码省略.........
示例10: DatatablesView
class DatatablesView(MultipleObjectMixin, View):
'''
Render a paginated server-side Datatables JSON view.
See: http://www.datatables.net/usage/server-side
'''
fields = []
_db_fields = None
def post(self, request, *args, **kwargs):
return self.process_dt_response(request.POST)
def get(self, request, *args, **kwargs):
return self.process_dt_response(request.GET)
def process_dt_response(self, data):
self.form = DatatablesForm(data)
if self.form.is_valid():
self.object_list = self.get_queryset().values(*self.get_db_fields())
return self.render_to_response(self.form)
else:
return HttpResponseBadRequest()
def get_db_fields(self):
if not self._db_fields:
self._db_fields = []
fields = self.fields.values() if isinstance(self.fields, dict) else self.fields
for field in fields:
if RE_FORMATTED.match(field):
self._db_fields.extend(RE_FORMATTED.findall(field))
else:
self._db_fields.append(field)
return self._db_fields
@property
def dt_data(self):
return self.form.cleaned_data
def get_field(self, index):
if isinstance(self.fields, dict):
return self.fields[self.dt_data['mDataProp_%s' % index]]
else:
return self.fields[index]
def get_orders(self):
'''Get ordering fields for ``QuerySet.order_by``'''
orders = []
iSortingCols = self.dt_data['iSortingCols']
dt_orders = [(self.dt_data['iSortCol_%s' % i], self.dt_data['sSortDir_%s' % i]) for i in xrange(iSortingCols)]
for field_idx, field_dir in dt_orders:
direction = '-' if field_dir == DESC else ''
if hasattr(self, 'sort_col_%s' % field_idx):
method = getattr(self, 'sort_col_%s' % field_idx)
result = method(direction)
if isinstance(result, (bytes, text_type)):
orders.append(result)
else:
orders.extend(result)
else:
field = self.get_field(field_idx)
if RE_FORMATTED.match(field):
tokens = RE_FORMATTED.findall(field)
orders.extend(['%s%s' % (direction, token) for token in tokens])
else:
orders.append('%s%s' % (direction, field))
return orders
def global_search(self, queryset):
'''Filter a queryset with global search'''
search = self.dt_data['sSearch']
if search:
if self.dt_data['bRegex']:
criterions = (Q(**{'%s__iregex' % field: search}) for field in self.get_db_fields())
search = reduce(or_, criterions)
queryset = queryset.filter(search)
else:
ors = []
for comma_split in search.split(','):
ands = []
for term in comma_split.split():
criterions = (Q(**{'%s__icontains' % field: term}) for field in self.get_db_fields())
single_term = reduce(Q.__or__, criterions)
ands.append(single_term)
search = reduce(Q.__and__, ands)
ors.append(search)
search = reduce(Q.__or__, ors)
queryset = queryset.filter(search)
return queryset
def column_search(self, queryset):
'''Filter a queryset with column search'''
for idx in xrange(self.dt_data['iColumns']):
search = self.dt_data['sSearch_%s' % idx]
if search:
if hasattr(self, 'search_col_%s' % idx):
custom_search = getattr(self, 'search_col_%s' % idx)
queryset = custom_search(search, queryset)
else:
field = self.get_field(idx)
fields = RE_FORMATTED.findall(field) if RE_FORMATTED.match(field) else [field]
#.........这里部分代码省略.........
示例11: DatatablesView
class DatatablesView(DatatablesView):
def process_dt_response(self, data):
self.form = DatatablesForm(data)
if self.form.is_valid():
#flush_transaction()
self.object_list = self.get_queryset().values(*self.get_db_fields())
#print 'get_queryset: %s' % str(self.get_queryset)
self.field_choices_dict = get_field_choices(self.get_queryset()[:1], self.get_db_fields())
#field_choices_dict={}
#print '####################################################################################################################'
#print '###object_list: %s, type: %s' % (self.object_list, type(self.object_list))
#self.object_list = get_object_list_display(self.object_list, field_choices_dict)
#print '********************************************************************************************************************'
#print '***object_list: %s, type: %s' % (self.object_list, type(self.object_list))
#print 'object_list: %s' % str(object_list)
#print 'field_choices_dict: %s' % str(field_choices_dict)
#print 'object_list_display: %s' % str(object_list_display)
#self.object_list = self.get_queryset().values(*self.get_db_fields())
#self.object_list = self.object_list_display
return self.render_to_response(self.form)
else:
return HttpResponseBadRequest()
def get_page(self, form):
'''Get the requested page'''
page_size = form.cleaned_data['iDisplayLength']
start_index = form.cleaned_data['iDisplayStart']
if page_size == -1:
#page_size = self.object_list.count()
page_size = len(self.object_list)
if page_size == 0: page_size = 1
paginator = Paginator(self.object_list, page_size)
num_page = (start_index / page_size) + 1
return paginator.page(num_page)
def can_regex(self, field):
'''Test if a given field supports regex lookups'''
from django.conf import settings
if settings.DATABASES['default']['ENGINE'].endswith('sqlite3'):
return not isinstance(get_real_field(self.model, field), UNSUPPORTED_REGEX_FIELDS)
elif settings.DATABASES['default']['ENGINE'].endswith('mysql'):
return not isinstance(get_real_field(self.model, field), UNSUPPORTED_REGEX_FIELDS)
else:
return True
def global_search(self, queryset):
'''Filter a queryset with global search'''
search = self.dt_data['sSearch']
if search:
if self.dt_data['bRegex']:
criterions = [Q(**{'%s__iregex' % field: search}) for field in self.get_db_fields() if self.can_regex(field)]
if len(criterions) > 0:
search = reduce(or_, criterions)
queryset = queryset.filter(search)
else:
for term in search.split():
#criterions = (Q(**{'%s__icontains' % field: term}) for field in self.get_db_fields())
criterions = (Q(**{'%s__icontains' % field: term}) for field in self.get_db_fields() if self.can_regex(field))
search = reduce(or_, criterions)
#print search
queryset = queryset.filter(search)
return queryset
def render_to_response(self, form, **kwargs):
'''Render Datatables expected JSON format'''
page = self.get_page(form)
#print 'page_type_object_list: %s' % type(page.object_list)
page.object_list = get_object_list_display(page.object_list, self.field_choices_dict)
data = {
'iTotalRecords': page.paginator.count,
'iTotalDisplayRecords': page.paginator.count,
'sEcho': form.cleaned_data['sEcho'],
'aaData': self.get_rows(page.object_list),
#'aaData': self.get_rows(object_list),
}
return self.json_response(data)示例12: ClientsDatatableView
class ClientsDatatableView(DatatablesView):
model = Client
fields = ("{first_name} {last_name},{pk}", "phone", "sex", "birth_date", "mail")
display_fields = ("sex",)
def get_company(self):
return self.request.session.get("company", None)
def global_search(self, queryset):
return super(ClientsDatatableView, self).global_search(queryset).filter(company=self.get_company())
def column_search(self, queryset):
return super(ClientsDatatableView, self).column_search(queryset).filter(company=self.get_company())
def get_queryset(self):
return super(ClientsDatatableView, self).get_queryset().filter(company=self.get_company())
def get_db_fields(self):
if not self._db_fields:
self._db_fields = []
fields = self.fields.values() if isinstance(self.fields, dict) else self.fields
for field in fields:
if RE_FORMATTED.match(field):
self._db_fields.extend(RE_FORMATTED.findall(field))
else:
self._db_fields.append(field)
return self._db_fields
def process_dt_response(self, data):
self.form = DatatablesForm(data)
if self.form.is_valid():
# self.object_list = self.get_queryset().values(*self.get_db_fields())
self.object_list = self.display_objects(self.get_queryset().all())
return self.render_to_response(self.form)
else:
return HttpResponseBadRequest()
def display_objects(self, objects):
objects_list = []
for object in objects:
o = {}
for field in self.get_db_fields():
if field in self.display_fields:
o[field] = getattr(object, "get_%s_display" % field)()
else:
o[field] = getattr(object, field)
objects_list.append(o)
return objects_list
def get_row(self, row):
"""Format a single row (if necessary)"""
if isinstance(self.fields, dict):
return dict(
[
(key, text_type(value).format(**row) if RE_FORMATTED.match(value) else row[value])
for key, value in self.fields.items()
]
)
else:
return [
text_type(field).format(**row) if RE_FORMATTED.match(field) else row[field] for field in self.fields
]
def get_rows(self, rows):
"""Format all rows"""
return [self.get_row(row) for row in rows]