def find_dataset(self, options=None):
""" Obtém dataset de acordo com os parâmetros informados """
if QueryBuilder.catch_injection(options):
raise ValueError('SQL reserved words not allowed!')
str_where = ''
if options.get('where') is not None:
str_where = ' WHERE ' + self.build_filter_string(
options.get('where'))
str_group = ''
nu_cats = options['categorias']
if options.get('pivot'):
nu_cats = nu_cats + options.get('pivot')
if options.get('agregacao', False):
str_group = QueryBuilder.build_grouping_string(
nu_cats, options['agregacao'])
str_categorias = self.build_categorias(nu_cats, options)
str_limit = ''
if options.get('limit'):
str_limit = f'LIMIT {options.get("limit")}'
str_offset = ''
if options.get('offset') is not None:
str_offset = f'OFFSET {options.get("offset")}'
if 'theme' not in options:
options['theme'] = 'MAIN'
query = self.get_named_query('QRY_FIND_DATASET').format(
str_categorias, self.get_table_name(options.get('theme')),
str_where, str_group,
self.build_order_string(options.get('ordenacao')), str_limit,
str_offset)
return self.fetch_data(query)
def build_std_calcs(self, options):
"""Constrói campos calculados de valor, como min, max e normalizado """
val_field = getattr(self, 'VAL_FIELD', None)
if val_field is None or self.get_default_partitioning(options) is None:
return ''
# Pega o valor passado ou padrão, para montar a query
if QueryBuilder.check_params(options, ['valor']):
val_field = options['valor']
# Pega o valor do particionamento
res_partition = None
if QueryBuilder.check_params(options, ['partition']):
res_partition = options.get('partition')
elif self.get_default_partitioning(options) != '':
res_partition = self.get_default_partitioning(options)
# Transforma o campo de valor em campo agregado conforme query
if QueryBuilder.check_params(options, ['agregacao']):
val_field = QueryBuilder.get_simple_agr_string(
options['agregacao'][0], options['valor'][0])
if QueryBuilder.check_params(options, ['pivot']):
res_partition = self.exclude_from_partition(
options['categorias'], options['agregacao'])
elif isinstance(val_field, list):
val_field = val_field[0]
str_res_partition = res_partition
if res_partition is not None and isinstance(res_partition, list):
str_res_partition = ",".join(res_partition)
# Constrói a query
arr_calcs = []
for calc in options['calcs']:
# Always appends min and max when calc is not one of them
if calc not in ['min_part', 'max_part']:
pattern = self.replace_partition('min_part', options)
if str_res_partition is None:
pattern = pattern.replace('PARTITION BY {partition}', '')
arr_calcs.append(
pattern.format(val_field=val_field,
partition=str_res_partition,
calc='min_part'))
pattern = self.replace_partition('max_part', options)
if str_res_partition is None:
pattern = pattern.replace('PARTITION BY {partition}', '')
arr_calcs.append(
pattern.format(val_field=val_field,
partition=str_res_partition,
calc='max_part'))
# Resumes identification of calc
pattern = self.replace_partition(calc, options)
if str_res_partition is None:
pattern = pattern.replace('PARTITION BY {partition}', '')
arr_calcs.append(
pattern.format(val_field=val_field,
partition=str_res_partition,
calc=calc))
return ', '.join(arr_calcs)
def build_joined_categorias(self, categorias, valor=None, agregacao=None,
joined=None):
''' Constrói a parte dos atributos selecionados na query '''
if categorias is None or not categorias:
raise ValueError('Invalid Categories - required')
str_cat = []
suffix = self.get_join_suffix(joined)
str_cat += QueryBuilder.transform_joined_categorias(categorias, suffix)
if agregacao is not None and valor is not None:
str_cat += self.combine_val_aggr(valor, agregacao, suffix)
elif agregacao is not None and valor is None:
str_cat += self.build_generic_agr_array(agregacao)
if QueryBuilder.validate_field_array(str_cat):
return ', '.join(str_cat)
raise ValueError('Invalid attributes')
def find_joined_dataset(self, options=None):
''' Obtém dataset de acordo com os parâmetros informados '''
if QueryBuilder.catch_injection(options):
raise ValueError('SQL reserved words not allowed!')
if options['joined'] is None:
raise ValueError('Joined table is required')
str_where = ''
if options['where'] is not None:
str_where = ' WHERE ' + self.build_filter_string(options['where'], options['joined'],
False)
str_group = ''
if options['agregacao'] is not None:
str_group = self.build_joined_grouping_string(
options['categorias'],
options['agregacao'],
options['joined']
)
if 'theme' not in options:
options['theme'] = 'MAIN'
str_categorias = self.build_joined_categorias(options['categorias'], options['valor'],
options['agregacao'], options['joined'])
query = self.get_named_query('QRY_FIND_JOINED_DATASET').format(
str_categorias,
self.get_table_name(options.get('theme')), # FROM
self.get_table_name(options.get('joined')), # JOIN
self.get_join_condition(options['joined'], options['where']), # ON
str_where, # WHERE
str_group, # GROUP BY
self.build_order_string(options.get('ordenacao')) # ORDER BY
)
return self.fetch_data(query)
def test_rank_count(self):
''' Verifica se retorna corretamente uma agregação RANK_COUNT '''
vlr = 'vl_indicador'
agr = 'rank_count'
result = QueryBuilder.get_agr_string(agr, vlr)
expected = 'RANK() OVER(ORDER BY COUNT(vl_indicador) DESC) AS agr_rank_count_vl_indicador'
self.assertEqual(result, expected)
def test_bypass(self):
''' Verifica se retorna None quando a agregação está na
lista de ignore '''
vlr = 'vl_indicador'
agr = 'DISTINCT'
result = QueryBuilder.get_simple_agr_string(agr, vlr)
self.assertEqual(result, None)
def build_joined_grouping_string(self,
categorias=None,
agregacao=None,
joined=None):
""" Constrói o tracho da query que comanda o agrupamento """
if categorias is None:
raise ValueError('Invalid fields')
nu_cats = []
for categoria in categorias:
suffix = self.get_join_suffix(joined)
if '-' in categoria:
arr_categoria = categoria.split('-')
if arr_categoria[0][-len(suffix):] == suffix:
nu_cats.append(arr_categoria[0][:-len(suffix)])
else:
nu_cats.append(arr_categoria[0])
elif categoria[-len(suffix):] == suffix:
nu_cats.append(categoria[:-len(suffix)])
else:
nu_cats.append(categoria)
if agregacao is not None:
if QueryBuilder.is_valid_grouping(agregacao):
return f'GROUP BY {", ".join(nu_cats)}'
return ''
raise ValueError('Invalid aggregation (no value)')
def test_rank_dense_sum(self):
''' Verifica se retorna corretamente uma agregação RANK_DENSE_SUM '''
vlr = 'vl_indicador'
agr = 'rank_dense_sum'
result = QueryBuilder.get_agr_string(agr, vlr)
expected = ('DENSE_RANK() OVER(ORDER BY SUM(vl_indicador) DESC) AS '
'agr_rank_dense_sum_vl_indicador')
self.assertEqual(result, expected)
def test_as_is(self):
''' Verifica se retorna corretamente uma agregação que
está na lista as_is '''
vlr = 'vl_indicador'
agr = 'sum'
expected = 'sum(vl_indicador)'
result = QueryBuilder.get_simple_agr_string(agr, vlr)
self.assertEqual(result, expected)
def test_custom(self):
''' Verifica se retorna corretamente uma agregação que
não está na lista as_is '''
vlr = 'vl_indicador'
agr = 'pct_count'
result = QueryBuilder.get_agr_string(agr, vlr)
expected = ('COUNT(vl_indicador) * 100 / SUM(COUNT(vl_indicador)) '
'OVER() AS agr_pct_count_vl_indicador')
self.assertEqual(result, expected)
def exclude_from_partition(self, categorias, agregacoes, options=None):
""" Remove do partition as categorias não geradas pela agregação """
partitions = self.get_default_partitioning(options).split(", ")
groups = QueryBuilder.build_grouping_string(
categorias, agregacoes).replace('GROUP BY ', '').split(", ")
result = []
for partition in partitions:
if partition in groups:
result.append(partition)
return ", ".join(result)
def build_agr_array(valor=None, agregacao=None):
''' Combina a agregação com o campo de valor, para juntar nos campos da query '''
if agregacao is None or not agregacao:
return []
result = []
for each_aggr in agregacao:
agr_string = QueryBuilder.get_agr_string(each_aggr, valor)
if agr_string is not None:
result.append(agr_string)
return result
def build_generic_agr_array(agregacao=None):
''' Prepara agregação sem campo definido '''
if agregacao is None or not agregacao:
return []
result = []
for each_aggr in agregacao:
agr_string = QueryBuilder.get_agr_string(each_aggr, '*')
if agr_string is not None:
result.append(agr_string)
return result
def build_filter_string(self, where=None, joined=None, is_on=False):
''' Builds WHERE clauses or added ON conditions '''
simple_operators = {
'EQ': "=", "NE": "!=", "LE": "<=", "LT": "<", "GE": ">=",
"GT": ">", "LK": "LIKE"
}
boolean_operators = {
"NL": "IS NULL", "NN": "IS NOT NULL"
}
suffix = ''
if joined is not None:
suffix = self.get_join_suffix(joined)
if where is None or (joined is None and is_on):
return ''
arr_result = []
for each_clause in where:
w_clause = each_clause.replace('\\-', '|')
w_clause = w_clause.split('-')
w_clause = [f.replace('|', '-') for f in w_clause]
if w_clause[0].upper() == 'AND' or w_clause[0].upper() == 'OR':
arr_result.append(w_clause[0])
elif QueryBuilder.validate_clause(w_clause, joined, is_on, suffix):
if w_clause[0].upper() in simple_operators:
arr_result.append(
f'{w_clause[1]} '
f'{simple_operators[w_clause[0].upper()]} '
f'{w_clause[2]}'
)
elif w_clause[0].upper() in boolean_operators:
arr_result.append(
f'{w_clause[1]} '
f'{boolean_operators[w_clause[0].upper()]}'
)
elif w_clause[0].upper() == 'IN':
arr_result.append(f'{w_clause[1]} IN ({",".join(w_clause[2:])})')
elif w_clause[0].upper() in ['EQON', 'NEON', 'LEON', 'GEON', 'LTON', 'GTON']:
resulting_string = f"regexp_replace(CAST({w_clause[1]} AS STRING), '[^[:digit:]]','')"
if len(w_clause) == 5: # Substring
resulting_string = f"substring({resulting_string}, {w_clause[3]}, {w_clause[4]})"
arr_result.append(f"{resulting_string} {simple_operators.get(w_clause[0].upper()[:2])} '{w_clause[2]}'")
elif w_clause[0].upper() in ['EQLPONSTR', 'NELPONSTR', 'LELPONSTR', 'GELPONSTR', 'LTLPONSTR', 'GTLPONSTR']:
resulting_string = f"regexp_replace(CAST({w_clause[1]} AS STRING), '[^[:digit:]]','')"
if len(w_clause) == 7: # Substring
resulting_string = f"substring(LPAD({resulting_string}, {w_clause[3]}, '{w_clause[4]}'), {w_clause[5]}, {w_clause[6]})"
arr_result.append(f"{resulting_string} {simple_operators.get(w_clause[0].upper()[:2])} '{w_clause[2]}'")
elif w_clause[0].upper() in ['EQSTR', 'NESTR', 'LESTR', 'GESTR', 'LTSTR', 'GTSTR']:
arr_result.append(f"substring(CAST({w_clause[1]} AS STRING), {w_clause[3]}, {w_clause[4]}) {simple_operators.get(w_clause[0].upper()[:2])} {w_clause[2]}")
elif w_clause[0].upper() in ['EQLPSTR', 'NELPSTR', 'LELPSTR', 'GELPSTR', 'LTLPSTR', 'GTLPSTR']:
arr_result.append(f"substring(LPAD(CAST({w_clause[1]} AS VARCHAR({w_clause[3]})), {w_clause[3]}, '{w_clause[4]}'), {w_clause[5]}, {w_clause[6]}) {simple_operators.get(w_clause[0].upper()[:2])} {w_clause[2]}")
elif w_clause[0].upper() in ['EQLPINT', 'NELPINT', 'LELPINT', 'GELPINT', 'LTLPINT', 'GTLPINT']:
arr_result.append(f"CAST(substring(LPAD(CAST({w_clause[1]} AS VARCHAR({w_clause[3]})), {w_clause[3]}, '{w_clause[4]}'), {w_clause[5]}, {w_clause[6]}) AS INTEGER) {simple_operators.get(w_clause[0].upper()[:2])} {w_clause[2]}")
elif w_clause[0].upper() in ['EQSZ', 'NESZ', 'LESZ', 'GESZ', 'LTSZ', 'GTSZ']:
arr_result.append(f"LENGTH(CAST({w_clause[1]} AS STRING)) {simple_operators.get(w_clause[0].upper()[:2])} {w_clause[2]}")
return ' '.join(arr_result)
def test_some_joined_some_as(self):
''' Retorna categorias transformadas, algumas com rename '''
categorias = [
'nm_indicador-nome', 'vl_indicador_mun-valor', 'ds_indicador',
'cd_indicador_mun'
]
result = QueryBuilder.transform_joined_categorias(categorias, '_mun')
expected = [
'nm_indicador AS nome', 'vl_indicador AS valor', 'ds_indicador',
'cd_indicador'
]
self.assertEqual(result, expected)
def build_order_string(ordenacao=None):
''' Prepara ordenação '''
if ordenacao is None or not ordenacao:
return ''
if not QueryBuilder.validate_field_array(ordenacao):
raise ValueError('Invalid aggregation')
order_str = ''
for field in ordenacao:
if order_str == '':
order_str += 'ORDER BY '
else:
order_str += ', '
if "-" in field:
order_str += field[1:] + ' DESC'
else:
order_str += field
return order_str
def build_filter_string(self, where=None, joined=None, is_on=False):
""" Builds WHERE clauses or added ON conditions """
suffix = ''
if joined is not None:
suffix = self.get_join_suffix(joined)
if where is None or (joined is None and is_on):
return ''
arr_result = []
for each_clause in where:
w_clause = each_clause.replace('\\-', '|')
w_clause = w_clause.split('-')
w_clause = [f.replace('|', '-') for f in w_clause]
if w_clause[0].upper() == 'AND' or w_clause[0].upper() == 'OR':
arr_result.append(w_clause[0])
continue
if not QueryBuilder.validate_clause(w_clause, joined, is_on,
suffix):
continue
criteria = self.build_criteria(w_clause)
if criteria:
arr_result.append(criteria)
return ' '.join(arr_result)
def test_validate_positive_complex(self):
''' Verifica positivo para palavras-chave de SQL '''
categorias = ["vl_indicador", "cd_ibge-truncate"]
options = {"categorias": categorias}
validation = QueryBuilder.catch_injection(options)
self.assertEqual(validation, True)
def test_validate_semi_transform(self):
''' Verifica construção de categorias com transformação em parte '''
categorias = ['vl_indicador-valor', 'cd_ibge']
expected = ['vl_indicador AS valor', 'cd_ibge']
transformed = QueryBuilder.transform_categorias(categorias)
self.assertEqual(transformed, expected)
def test_prepend_aggregations_empty(self):
''' Retorna lista vazia, pois não tem agregação genérica '''
aggrs = ['SUM', 'MAX']
result = QueryBuilder.prepend_aggregations(aggrs)
self.assertEqual(result, [])
def test_validate_negative_null(self):
''' Verifica negativo para atributo nulo '''
categorias = ["vl_indicador", "cd_ibge"]
options = {"categorias": categorias, "valor": None}
validation = QueryBuilder.catch_injection(options)
self.assertEqual(validation, False)
def test_valid_no_join(self):
''' Sinaliza positivamente quando não é um join '''
result = QueryBuilder.validate_clause(['eq', 'any'], None, None, None)
self.assertEqual(result, True)
def test_with_distinct(self):
''' Retorna exceção quando não há agregação para agrupar '''
cats = ['nm_indicador-nome', 'nu_competencia']
agrs = ['SUM', 'MAX', 'DISTINCT']
result = QueryBuilder.build_grouping_string(cats, agrs)
self.assertEqual(result, '')
def test_validate_negative(self):
''' Verifica negativo para palavras-chave de SQL '''
categorias = ["vl_indicador", "cd_ibge"]
options = {"categorias": categorias}
validation = QueryBuilder.catch_injection(options)
self.assertEqual(validation, False)
def test_validate_positive(self):
''' Verifica positivo para separador de SQL '''
fields = ['vl_indicador', 'cd_ibge;select']
validation = QueryBuilder.validate_field_array(fields)
self.assertEqual(validation, False)
def test_valid_join_com_sufixo(self):
''' Sinaliza positivamente quando é um filtro de join
e tem um sufixo '''
result = QueryBuilder.validate_clause(['eq', 'any_mun'], 'municipio',
True, '_mun')
self.assertEqual(result, True)
def test_prepend_aggregations_valid(self):
''' Retorna distinct, dentre outras agregações enviadas '''
aggrs = ['SUM', 'DISTINCT', 'MAX']
result = QueryBuilder.prepend_aggregations(aggrs)
self.assertEqual(result, ['DISTINCT'])
def test_invalid_join_sem_sufixo(self):
''' Sinaliza negativamente quando é um filtro de join
e não tem um sufixo '''
result = QueryBuilder.validate_clause(['eq', 'any'], 'municipio', True,
'_mun')
self.assertEqual(result, False)
def test_prepend_aggregations_void(self):
''' Retorna lista vazia quando recebe agregação vazia '''
aggrs = []
result = QueryBuilder.prepend_aggregations(aggrs)
self.assertEqual(result, [])
def test_invalid_out_join_sufixo(self):
''' Sinaliza negativamente quando é um filtro fora do
join e tem um sufixo '''
result = QueryBuilder.validate_clause(['eq', 'any_mun'], 'municipio',
False, '_mun')
self.assertEqual(result, False)
