Best Python code snippet using localstack_python
paginations.py
Source: paginations.py
1from dateutil import parser2from django.conf import settings3from rest_framework.pagination import BasePagination4from rest_framework.response import Response5class EndlessPagination(BasePagination):6 page_size = 20 if not settings.TESTING else 107 def __init__(self):8 super(EndlessPagination, self).__init__()9 self.has_next_page = False10 def to_html(self):11 pass12 def paginate_ordered_list(self, reverse_ordered_list, request):13 """14 request é ç¡®å®äºè¦ååªä¸é¡µ15 """16 # æååä¸æï¼å·åºæ¥æ°çæ°æ®17 if 'created_at__gt' in request.query_params:18 created_at__gt = parser.isoparse(request.query_params['created_at__gt'])19 objects = []20 for obj in reverse_ordered_list:21 if obj.created_at > created_at__gt:22 objects.append(obj)23 else:24 break25 self.has_next_page = False26 return objects27 index = 028 # æååä¸æï¼å·æ§çæ°æ®29 if 'created_at__lt' in request.query_params:30 created_at__lt = parser.isoparse(request.query_params['created_at__lt'])31 for index, obj in enumerate(reverse_ordered_list):32 if obj.created_at < created_at__lt:33 break34 else:35 # 没æ¾å°ä»»ä½æ»¡è¶³æ¡ä»¶ç objects, è¿å空æ°ç»36 # 注æè¿ä¸ª else 对åºçæ¯ forï¼åè§ python ç for else è¯æ³37 reverse_ordered_list = []38 self.has_next_page = len(reverse_ordered_list) > index + self.page_size39 return reverse_ordered_list[index: index + self.page_size]40 def paginate_queryset(self, queryset, request, view=None):41 if 'created_at__gt' in request.query_params:42 # min_id ç¨äºä¸æå·æ°çæ¶åå è½½ææ°çå
容è¿æ¥43 # 为äºç®ä¾¿èµ·è§ï¼ä¸æå·æ°ä¸å翻页æºå¶ï¼ç´æ¥å è½½æææ´æ°çæ°æ®44 # å 为å¦ææ°æ®å¾ä¹
没ææ´æ°çè¯ï¼ä¸ä¼éç¨ä¸æå·æ°çæ¹å¼è¿è¡æ´æ°ï¼èæ¯éæ°å è½½ææ°çæ°æ®45 created_at__gt = request.query_params['created_at__gt']46 queryset = queryset.filter(created_at__gt=created_at__gt)47 self.has_next_page = False48 return queryset.order_by('-id')49 if 'created_at__lt' in request.query_params:50 # max_id ç¨äºåä¸æ»å±ï¼å¾ä¸ç¿»é¡µï¼çæ¶åå è½½ä¸ä¸é¡µçæ°æ®51 # å¯»æ¾ id < max_id ç objects éæç
§ id ååºçå page_size + 1 个 objects52 # æ¯å¦ç®åçidåè¡¨æ¯ [10, 9, 8, 7 .. 1] å¦æ max_id=10, page_size = 253 # ååºè¯¥è¿å [9, 8, 7]ï¼å¤è¿åä¸ä¸ª object çåå æ¯ä¸ºäºå¤ææ¯å¦è¿æä¸ä¸é¡µ54 # ä»èåå°ä¸æ¬¡ç©ºå è½½ã55 created_at__lt = request.query_params['created_at__lt']56 queryset = queryset.filter(created_at__lt=created_at__lt)57 queryset = queryset.order_by('-id')[:self.page_size + 1]58 self.has_next_page = len(queryset) > self.page_size59 return queryset[:self.page_size]60 def paginate_cached_list(self, cached_list, request):61 """62 è¾å
¥ææ cached obj list, è¾åºå«ç63 """64 paginated_list = self.paginate_ordered_list(cached_list, request)65 # å¦ææ¯ä¸ç¿»é¡µï¼paginated_list éæ¯ææçææ°çæ°æ®ï¼ç´æ¥è¿å66 if 'created_at__gt' in request.query_params:67 return paginated_list68 # å¦æè¿æä¸ä¸é¡µï¼è¯´æ cached_list éçæ°æ®è¿æ²¡æåå®ï¼ä¹ç´æ¥è¿å69 if self.has_next_page:70 return paginated_list71 # å¦æ cached_list çé¿åº¦ä¸è¶³æ大éå¶ï¼è¯´æ cached_list éå·²ç»æ¯æææ°æ®äº72 # cache ç¼åéçæ°æ®æå¯è½è¶
è¿æ们åç redis éå¶ï¼æ以è¿ééå¶ä¸ï¼73 # è¥è¶
è¿éå¶ï¼ç´æ¥å»æ°æ®åºéåå
容74 if len(cached_list) < settings.REDIS_LIST_LENGTH_LIMIT:75 return paginated_list76 # å¦æè¿å
¥è¿éï¼è¯´æå¯è½åå¨å¨æ°æ®åºé没æ load å¨ cache éçæ°æ®ï¼éè¦ç´æ¥å»æ°æ®åºæ¥è¯¢77 return None78 def get_paginated_response(self, data):79 return Response({80 'has_next_page': self.has_next_page,81 'results': data,...
custom.py
Source: custom.py
1from django import forms2import logging3from django.core.exceptions import ValidationError4from django.core.paginator import Paginator, PageNotAnInteger, EmptyPage5from django.forms import widgets6from django.utils.encoding import force_text7from apps.custom_base.widgets.material import InputTextMaterial, TextAreaMaterial, SelectMaterial, URLMaterial, \8 EmailMaterial, NumberMaterial, BooleanMaterial, MaterialSelectMultiple9logger = logging.getLogger('error')10class AbstractIdeiaForm(object):11 def process(self):12 # :try:13 return self.__process__() if self.is_valid() else False14 # except NotImplementedError:15 # raise NotImplementedError16 # except Exception, e:17 # if settings.DEBUG:18 # raise e19 # else:20 # logger.error(e)21 # self.add_error(None, "General error!")22 # return False23 def __process__(self):24 raise NotImplementedError25 def is_valid(self):26 pass27 def add_error(self, *args, **kwargs):28 pass29class IdeiaForm(forms.Form, AbstractIdeiaForm):30 def __init__(self, *args, **kwargs):31 super(IdeiaForm, self).__init__(*args, **kwargs)32class IdeiaModelForm(forms.ModelForm, AbstractIdeiaForm):33 def __init__(self, *args, **kwargs):34 super(IdeiaModelForm, self).__init__(*args, **kwargs)35MATERIAL_WIDGETS = {36 widgets.TextInput: InputTextMaterial,37 widgets.Textarea: TextAreaMaterial,38 widgets.Select: SelectMaterial,39 widgets.URLInput: URLMaterial,40 widgets.EmailInput: EmailMaterial,41 widgets.NumberInput: NumberMaterial,42 widgets.CheckboxInput: BooleanMaterial,43 widgets.SelectMultiple: MaterialSelectMultiple,44}45class MaterialModelForm(forms.ModelForm):46 def __update_fields__(self, attrs=None):47 for key in self.fields:48 field = self.fields[key]49 widget = field.widget50 if (not self._meta.widgets or key not in self._meta.widgets) and type(widget) in MATERIAL_WIDGETS:51 field.widget = MATERIAL_WIDGETS[type(widget)](attrs=attrs)52 field.widget.label = field.label53 if hasattr(field, "choices"):54 field.widget.choices = field.choices55 def __init__(self, *args, **kwargs):56 super(MaterialModelForm, self).__init__(*args, **kwargs)57 attrs = kwargs.get('attrs')58 self.__update_fields__(attrs=attrs)59 def add_error(self, field, error):60 super(MaterialModelForm, self).add_error(field=field, error=error)61 self.__update_error__(field=field)62 def __update_error__(self, field):63 if field:64 widget = self.fields[field].widget65 if (not self._meta.widgets or field and field not in self._meta.widgets) \66 and type(widget) in MATERIAL_WIDGETS.values() and field in self.errors:67 self.fields[field].widget.errors = self.errors[field]68 def is_valid(self):69 valid = super(MaterialModelForm, self).is_valid()70 for key in self.fields:71 self.__update_error__(field=key)72 return valid73class CustomPaginator():74 @staticmethod75 def paginate(queryset=None, itens_per_page=10, page=1):76 paginated_list = Paginator(queryset, itens_per_page)77 try:78 paginated_list = paginated_list.page(page)79 except PageNotAnInteger:80 paginated_list = paginated_list.page(1)81 except EmptyPage:82 paginated_list = []...
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