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How to use by_and method in Selene

Best Python code snippet using selene_python

dataset.py

Source:dataset.py

1from .models import DrugsApproved2from django.db.models.functions import ExtractYear3from django.db.models import Count, Max, Min4from django.db.models.query import EmptyQuerySet5from copy import deepcopy6class DrugDataset(object):7	"""generate dataset for creating echarts"""8	MAX_KEYWORD_NUM = 39	TOO_LARGE_QSET = 5000010	EXCEPT_KEYWORDS = ['å½è¯ååZ2','å½è¯ååH2','å½è¯ååS2','æéå¬å¸','199','200','201', '02', '03', '04']11	colnames = ['drug_name_zh', 'production_unit__production_unit_name', 'drug_name_en', 'drug_approval_num']12	view_colnames = ['drug_index', 'drug_approval_num', 'drug_name_zh', 'drug_name_en', 'drug_form','drug_spec', 'production_unit__production_unit_name','production_unit__province', 'approval_date']13	date_columns = ['approval_date']14	one_ending = '_one'15	many_ending = '_many'16	charts_by_column = {17	'default':['approval_date', 'production_unit__province'],18	'drug_name_zh'+one_ending:['approval_date', 'production_unit__province'],19	'drug_name_zh'+many_ending:['approval_date', 'production_unit__province', 'drug_form'],20	# 'drug_name_zh'+one_ending:['drug_spec', 'production_unit__production_unit_name', 'approval_date'],21	# 'drug_name_zh'+many_ending:['drug_name_zh', 'category', 'drug_spec', 'production_unit__production_unit_name', 'approval_date'],22	'production_unit__production_unit_name'+one_ending:['approval_date','drug_form'],23	'production_unit__production_unit_name'+many_ending:['approval_date', 'drug_form', 'production_unit__province'],24	'drug_approval_num'+one_ending:['approval_date','drug_form'],25	'drug_approval_num'+many_ending:['approval_date', 'drug_form', 'production_unit__production_unit_name'],26	'drug_name_en'+one_ending:['approval_date','drug_form'],27	'drug_name_en'+many_ending:['approval_date', 'drug_form', 'production_unit__province'],28	}29	chartbyids = {30	'drug_name_zh':'æè¯ååç§°',31	'drug_form':'æåå',32	'drug_spec':'æè§æ ¼',33	'production_unit__production_unit_name':'æä¼ä¸åç§°',34	'production_unit__province':'æçä»½',35	'approval_date':'ææ¹åå¹´ä»½',36	}37	x = 'axisX'38	y = 'axisY'39	is_by_and = True40	default_qsets = {}41	model = DrugsApproved42	querys_dict = {}43	def __init__(self):44		super(DrugDataset, self).__init__()45	def _parse_keyword(self, keyword, splitchars=[' ', '+', ',', 'ï¼']):46		# split keyword to a list47		keyword = keyword.strip()48		for c in splitchars:49			kwords = keyword.split(c)50			if len(kwords) > 1: 51				if c in [',', 'ï¼']:52					self.is_by_and = False53				else:54					self.is_by_and = True55				break56		def except_word(kword):57			if kword == '': return False58			kword = kword.upper()59			for ewords in DrugDataset.EXCEPT_KEYWORDS:60				if kword in ewords:61					return False62			return True63		#drop the space char of list64		kwords = list(filter(except_word, kwords))65		return kwords or []66	def _get_query_columns(self, kwords):67		# find out the relative columns of kwords68		columns = []69		qwords = []70		for keyword in kwords:71			column = self._get_query_column_by_one(keyword)72			if column :73				columns.append(column)74				qwords.append(keyword)75		print('query kwords:{}, columns:{}'.format(qwords, columns))76		return qwords, columns77	def _get_query_column_by_one(self, keyword):78		# find out the first correct column of a keyword79		for col in self.colnames:80			obj = self.model.objects\81				.filter(**{col+'__icontains' : keyword})\82				.first()83			if obj: return col84	def _get_query_names_by_cols(self, objs, qwords, columns):85		# collect all the different column values of every qword by column86		querys_dict = {}87		cur_words = []88		for i in range(len(columns)):89			dnames = objs.values_list(columns[i], flat = True)90			dnames = list(set(dnames))91			dnames.sort()92			if qwords[i] in dnames:93				cur_words.append(qwords[i])94				j = dnames.index(qwords[i])95				dnames[i], dnames[j] = dnames[j], dnames[i]96			else:97				cur_words.append(dnames[0])98			querys = {'kwords' : dnames, 'column': columns[i], 'active':''}99			# print('querys = {}'.format(querys))100			querys_dict[qwords[i]] = querys101			102		querys_dict = self._collect_same_column(querys_dict)103		return querys_dict, cur_words104	def _collect_same_column(self, querys_dict):105		# collect and group by the same column, space char join keys by same columns106		d = {}107		for k, v in querys_dict.items():108			col = v['column']109			if col in d.keys():110				d[col] = d[col] + ' ' + k111			else:112				d[col] = k113		dd = {}114		for col, keys in d.items():115			for value in querys_dict.values():116				if value['column'] == col:117					dd[keys] = value118					break119		return dd120	def _get_queryset_by_list(self, objs, kwords, columns, by_exact = True, by_and = True):121		# filter with all the kwords by columns from objs of db122		if len(kwords) != len(columns): return []123		if not by_exact:124			cols_methods = [col+'__icontains' for col in columns]125		else:126			cols_methods = [col+'__iexact' for col in columns]127		filter_kw = dict(zip(kwords, cols_methods))128		print('kwords = {}, columns = {}, kw={}'.format(kwords, columns, filter_kw))129		colset = set(filter_kw.values())130		return self._get_queryset_by_recursion(objs, filter_kw, colset, by_and = by_and)131	def _get_queryset_by_recursion(self, objs, filter_kw, colset, by_and = True):132		cur_col = colset.pop()133		qset = objs.none()134		for value, col in filter_kw.items():135			if col == cur_col:	136				print('col = {}, value = {}'.format(col, value))137				if isinstance(qset, EmptyQuerySet):138					qset = objs.filter(**{col: value})139				else:140					qs = objs.filter(**{col: value})141					# QuerySet & QuerySet one by one, intersection142					if by_and:143						qset = qset & qs144					else:145						qset = qset | qs146				# print('queryset by list len:{}'.format(len(qset)))147				# print('qset by list kwords:{} = {}, qset ={}'.format(col, value, qset))148		if len(colset) == 0:149			return qset150		else:151			return self._get_queryset_by_recursion(qset, filter_kw, colset, by_and = by_and)152	def _get_queryset_by_one(self, objs, name, column, is_exact = False):153		# filter withe one kword by column from objs of db154		if is_exact:155			qset = objs.filter(**{column+'__iexact': name})156		else:157			qset = objs.filter(**{column+'__icontains': name})158		print('queryset by one len:{}'.format(len(qset)))159		return qset160	def get_queryset(self, keyword, is_exact = False):161		# get queryset by keyword162		self.keyword = keyword163		kwords = self._parse_keyword(keyword)164		if kwords == []: return [], kwords, []165		qwords, columns = self._get_query_columns(kwords)166		if qwords == []: return [], kwords, []167		kn = len(qwords)168		if kn == 1:169			qset = self._get_queryset_by_one(self.model.objects, qwords[0], columns[0], is_exact = is_exact)170		elif kn > 1:171			qset = self._get_queryset_by_list(self.model.objects, qwords, columns, by_exact = is_exact, by_and = self.is_by_and)172		# print('qset = {}'.format(qset))173		return qset, qwords, columns174	def get_queryset_by_dict(self, **keys_cols):175		# get queryset by dict, to ready for request ajax176		kwords = list(keys_cols.keys())177		columns = list(keys_cols.values())178		qset = self._get_queryset_by_list(self.model.objects, kwords, columns, by_and = False)179		print('qset by dict len:', len(qset))180		return qset181	def get_datasets_by_dict(self, cur_keyword = '', **keys_cols):182		# get datasets by dict, to ready for request ajax183		if cur_keyword != '':184			qset = DrugDataset.default_qsets[cur_keyword]185			chartbycols = self.charts_by_column['default']186			kwords = []187			columns = []188		else:189			kwords = list(keys_cols.keys())190			columns = list(keys_cols.values())191			qset = self._get_queryset_by_list(self.model.objects, kwords, columns, by_and = False)192			if len(columns) > 1:193				chartbycols = self.charts_by_column[columns[0]+self.many_ending]194			else:195				chartbycols = self.charts_by_column[columns[0]+self.one_ending]	196		chartdatas = {}197		# get every chart by specified columns198		for chartbycol in chartbycols:199			# create a dict with zero values of every different chartbycol's key value200			print('chartbycol = ', chartbycol)201			chartdata = {}202			zdataset, new_col = self._init_dataset(qset, chartbycol)203			# count the item data of chartbycol filted by each filter_col and key204			if len(keys_cols) == 0:205				data = self._get_data_count_by(chartbycol, qset, zdataset, new_col)206				chartdata['Catgory with All Results'] = data207			else:208				for key, filter_col in keys_cols.items():209					print('*'*100)210					data = self._get_data_count_by(chartbycol, qset, zdataset, new_col, filter_by_col = filter_col, filter_keyword = key)211					chartdata[key] = data212			chartdatas[self.chartbyids[chartbycol]] = chartdata213			# self._save_dataset_to_db(qset, '', datasets)214		return chartdatas, kwords, columns215	# def _get_dataset_from_cache(self, keyword):216	# 	return [], [], [], [], ''217	def get_query_names(self, keyword, is_exact = False):218		# get query names219		qset, qwords, columns = self.get_queryset(keyword, is_exact)220		print('qset type:{}'.format(type(qset)))221		if len(qset) == 0: return {}, keyword, []222		if len(qset) > DrugDataset.TOO_LARGE_QSET: return {}, keyword, DrugDataset.TOO_LARGE_QSET223		DrugDataset.default_qsets[self.keyword] = qset224		querys_dict, cur_words = self._get_query_names_by_cols(qset, qwords, columns)225		return querys_dict, cur_words, qset226	def _get_data_count_by(self, count_by_col, qset, zdataset, new_col, filter_by_col = None, filter_keyword = None ):227		# count a column by group by itself228		if filter_by_col:229			qset = qset.filter(**{filter_by_col+'__iexact': filter_keyword})230		if count_by_col in self.date_columns:231			# print('-----------annotate date by year-------------')232			qset = qset.annotate(**{new_col : ExtractYear(count_by_col)}).values(new_col)233		data_count = qset.values(new_col).annotate(**{self.y : Count(new_col)}).values(new_col, self.y).order_by(new_col)234		print('data_count = {}'.format(data_count))235		#union the result dataset with zdataset236		zdataset = deepcopy(zdataset)237		# print('zdataset = {}'.format(zdataset))238		for d in zdataset:239			for cy in data_count:240				if d[new_col] == cy[new_col]: d[self.y] = cy[self.y]241		data_count = [tuple(d.values()) for d in zdataset]242		print('data_count tuple = {}'.format(data_count))243		return data_count or []244	def _init_dataset(self, qset, col):245		# init zero dataset246		if col in self.date_columns:247			qset = qset.annotate(**{self.x : ExtractYear(col)})248			col = self.x249		dset = qset.values_list(col, flat = True).order_by(col)250		dset = list(set(dset))251		dset.sort()252		# print('dset = {}'.format(dset))253		return [{col : i, self.y : 0 } for i in dset], col254	def _save_dataset_to_db(self, qset, query_dict, datasets):...

condition.py

Source:condition.py

...5E = TypeVar('E')6R = TypeVar('R')7class Condition(Callable[[E], None]):8    @classmethod9    def by_and(cls, *conditions):10        def fn(entity):11            for condition in conditions:12                condition.call(entity)13        return cls(' and '.join(map(str, conditions)), fn)14    @classmethod15    def by_or(cls, *conditions):16        def fn(entity):17            errors: List[Exception] = []18            for condition in conditions:19                try:20                    condition.call(entity)21                    return22                except Exception as e:23                    errors.append(e)24            raise AssertionError('; '.join(map(str, errors)))25        return cls(' or '.join(map(str, conditions)), fn)26    @classmethod27    def as_not(28            cls, condition: Condition[E], description: str = None29    ) -> Condition[E]:30        condition_words = str(condition).split(' ')31        is_or_have = condition_words[0]32        name = ' '.join(condition_words[1:])33        no_or_not = 'not' if is_or_have == 'is' else 'no'34        new_description = description or f'{is_or_have} {no_or_not} {name}'35        def fn(entity):36            try:37                condition.call(entity)38            except Exception:39                return40            raise ConditionNotMatchedError()41        return cls(new_description, fn)42    @classmethod43    def raise_if_not(44            cls, description: str, predicate: Predicate[E]45    ) -> Condition[E]:46        def fn(entity: E) -> None:47            if not predicate(entity):48                raise ConditionNotMatchedError()49        return cls(description, fn)50    @classmethod51    def raise_if_not_actual(52            cls, description: str, query: Lambda[E, R], predicate: Predicate[R]53    ) -> Condition[E]:54        def fn(entity: E) -> None:55            query_to_str = str(query)56            result = (57                query.__name__58                if query_to_str.startswith('<function')59                else query_to_str60            )61            actual = query(entity)62            if not predicate(actual):63                raise AssertionError(f'actual {result}: {actual}')64        return cls(description, fn)65    def __init__(self, description: str, fn: Lambda[E, None]):66        self._description = description67        self._fn = fn68    def call(self, entity: E) -> None:69        self._fn(entity)70    @property71    def predicate(self) -> Lambda[E, bool]:72        def fn(entity):73            try:74                self.call(entity)75                return True76            except Exception as e:77                return False78        return fn79    @property80    def not_(self) -> Condition[E]:81        return self.__class__.as_not(self)82    def __call__(self, *args, **kwargs):83        return self._fn(*args, **kwargs)84    def __str__(self):85        return self._description86    def and_(self, condition: Condition[E]) -> Condition[E]:87        return Condition.by_and(self, condition)88    def or_(self, condition: Condition[E]) -> Condition[E]:89        return Condition.by_or(self, condition)90def not_(condition_to_be_inverted: Condition):...

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