/
orm.py
executable file
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/
orm.py
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# !/usr/bin/env python3
# -*- encoding: utf-8 -*-
"""
ERP+
"""
__author__ = 'António Anacleto'
__credits__ = []
__version__ = "1.0"
__maintainer__ = "António Anacleto"
__status__ = "Development"
import os, sys
sys.path.append(os.getcwd())
import psycopg2
import psycopg2.extras
import psycopg2.pool
import datetime
from contextlib import contextmanager
from auth import verify_orm_rights
import uuid
from beaker.cache import CacheManager
from beaker.util import parse_cache_config_options
from decimal import Decimal#depois apagar isto quando tirar daqui o to_decimal
import traceback
import ujson
cache_opts = {
'cache.type': 'memory',
'cache.data_dir': '/tmp/cache/data',
'cache.lock_dir': '/tmp/cache/lock'
}
cache = CacheManager(**parse_cache_config_options(cache_opts))
erp_cache = cache.get_cache('erp_cache', type='memory', expire=10)
short_cache = cache.get_cache('short_cache', type='memory', expire=10)
def get_context(window_id):
#print('Im on get_context', window_id)
with open('../tmp/{window_id}ctx.json'.format(window_id=window_id), mode='r' , encoding='utf-8') as json_file:
json_string = json_file.read()
#print (json_string)
ctx_dict = ujson.loads(json_string)
return ctx_dict
def set_context(window_id, ctx_dict):
#print('Im on set_context', window_id)
#print (ctx_dict)
with open('../tmp/{window_id}ctx.json'.format(window_id=window_id), mode='w' , encoding='utf-8') as json_file:
#print (json_file)
json_file.write(ujson.dumps(ctx_dict))
#print ('sta scrito!!')
#print ('out of set_context')
def to_decimal(number):
if number not in [None, 'None', '']:
number = Decimal('{number}'.format(number=str(number)))
number = number.quantize(Decimal('0.1'))
else:
number = Decimal('0')
return number
def get_model_fields(model):
"""Devolve os atributos de um modelo que correspondem a 'fields'!!!"""
ordered_fields_dict = {}
for var in vars(model):
if 'widgets' in str(vars(model)[var]):
field = eval('model.' + var)
#print('{var1}'.format(var1=str(field)))
ordered_fields_dict[field.view_order] = (var, field)
#print('{var1}'.format(var1=str(ordered_fields_dict.keys())))
for key in ordered_fields_dict.keys():
yield ordered_fields_dict[key]
def connect():
import erp_config
global db
db = psycopg2.pool.SimpleConnectionPool(1,10,"dbname={dbname} user={dbuser} host={dbhost} password={dbpass} sslmode='disable'".format(dbname=erp_config.db_name, dbuser=erp_config.db_user, dbhost=erp_config.db_host, dbpass=erp_config.db_password))
print('Conectado com sucesso!!!')
@contextmanager
def getcursor():
try:
db
except:
connect()
con = db.getconn()
try:
yield con.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
finally:
con.commit()
db.putconn(con)
def closedb():
db.closeall()
def syncModel(model):
#print('estou no syncModel')
import utils
table = model.__name__
fields = utils.get_model_fields(model)
model_fields = ''
model_fields_list = [('active','boolean'), ('id','varchar(50)'), ('date_create','date'), ('user_create','date'), ('date_change','date'), ('user_change','date')]
db_types = {'active':'boolean', 'id':'varchar(50)', 'date_create':'date', 'user_create':'date', 'date_change':'date', 'user_change':'date'}
import objs
constrains = []
for f in fields:
#aqui depois colocar um if f not in [lista com nomes reservados]
#print('{var1}'.format(var1=f[0]))
if f[1].__class__.__name__ not in ['list_field', 'many2many']:
field = eval(f[1].__class__.__name__ + '()')
db_types[f[0]] = field.dbtype
if f[1].__class__.__name__ == 'parent_field':
#print('objs.{model_name}().__name__'.format(model_name=f[1].model_name))
parent = eval('objs.{model_name}().__name__'.format(model_name=f[1].model_name))
constrain = field.constrains%{'name':f[0],'parent':parent,'table':table}
constrain_name = 'fk_%(table)s_%(parent)s'%{'parent':parent,'table':table}
constrains.append((constrain, constrain_name))#aqui on caso das combo tambem deveria ter constrain se for parent=true
dbtype = field.dbtype
if f[1].__class__.__name__ == 'combo_field':
if f[1].parent:
dbtype = 'VARCHAR(50)'
model_fields += f[0] + ' ' + dbtype + ','
model_fields_list.append((f[0], dbtype))
elif f[1].__class__.__name__ == 'many2many':
table1 = table
#print('table1 {var1}'.format(var1=table1))
#print('objs.{model_name}().__name__'.format(model_name=f[1].model_name))
table2 = eval('objs.{model_name}().__name__'.format(model_name=f[1].model_name))
#print('table2 {var1}'.format(var1=table2))
new_table = utils.get_many2many_name(table1, table2)
#print('new_table {var1}'.format(var1=new_table))
sql = 'CREATE TABLE IF NOT EXISTS {table}(id VARCHAR(50) PRIMARY KEY, {field1} VARCHAR(50), {field2} VARCHAR(50));'.format(table=new_table, field1=table1, field2=table2)#aqui tambem teremos que introduzir as foreign keys
with getcursor() as cursor:
cursor.execute(sql)
#print('1')
# depois deveremos utilizar herança para estes campos base e outros que eventualmente o justifiquem, teremos que ter tambem estrat´egia de partiç~ao de tabelas
model_fields += 'id VARCHAR(50) PRIMARY KEY, user_create VARCHAR(50), date_create DATE, user_change VARCHAR(50), date_change DATE, active BOOLEAN'
sql = """CREATE TABLE IF NOT EXISTS %(table)s(%(cols)s);"""%{'table':table, 'cols':model_fields}
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
#vou utilizar para ir buscar os nomes das colunas
sql = """SELECT * FROM {table}""".format(table=table)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
col_name_list = [desc[0] for desc in cursor.description]
#print('{var1} {var2}'.format(var1=str(col_name_list), var2=str(model_fields_list)))
if col_name_list:
for f in model_fields_list:
field_name = f[0]
#print('{var1}'.format(var1=field_name))
if field_name not in col_name_list:
#print('{var1} {var2}'.format(var1=table, var2=str(db_types[f[0]])))
sql = """ALTER TABLE {table} ADD COLUMN {column} {field_type}""".format(table=table, column=field_name, field_type=db_types[f[0]])
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
if f[1].__class__.__name__ == 'parent_field':
sql = """ALTER TABLE {table} ADD CONSTRAINT fk_{name}_{parent} FOREIGN KEY ({name}) REFERENCES {parent}(id) ON DELETE RESTRICT;""".format(table=table, parent=f[1].parent, name=f[0])
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
#print('contrains {var1}'.format(var1=str(constrains)))
for constrain in constrains:
constrain_name = constrain[1]
constrain = constrain[0]
sql = """
ALTER TABLE {table} DROP CONSTRAINT IF EXISTS {constrain_name};
ALTER TABLE {table} ADD CONSTRAINT {constrain};""".format(table=table, constrain=constrain, constrain_name=constrain_name)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
#aqui deveria depois por o codigo para executar o codigo sql do on_create do modelo, claro que tenho que ter a certeza que a tabela acabou de ser criada, podera ser utilizada para criar users, por exemplo e tipos de documento e outros do genero
class Model(object):
def __init__(self, **kargs):
#print('im in model do orm', str(self))
#Define o tipo de formulário, pode ser 'inline', 'edit' ou 'popup' no futuro podera haver outros, se vem de um field as mesmas opçoes devem ficar no field
self.__list_edit_mode__ = 'edit' # do ponto de vista de flaxiblidade isto tem que ser repensado, corresponde a como numa lista editamos um registo a lista pode ser um field ou um form, e pode o mesmo modelo ser chamado num form como edit mas noutro como inline por isso a accao deveria estar na parameterizaçao do campo se for field e a do modelo so e utilizado se for form.
#Sempre que for necessário correr um determinado sql após a criação da tabela
self.__on_create_sql__ = ''
#Define a ordem pela qual os registos são apresentados nas listas, podem ser varios campos separados por virgulas, e ter qualquer espress~ao usada em SQL ex: 'int8(tabela.coluna) DESC', sempre deve ter a tabela para evitar conflitos no SQL e pode usar qualquer tabela que esteja relacionada a montante (parent,combo, choice)
self.__order_by__ = ''
#Define o Workflow
self.__workflow__ = ()
#Gestão de Permissões para o workflow. Só aparecem os botões se o utilizador tiver autorização para efectuar a tarefa
self.__workflow_auth__ = {}
#Utilizado para inibir botões no workflow se determinada condição não for cumprida
self.__workflow_context__ = {}
#Utilizado para mostrar ou inibir a visualização de registos mediante determinada condição
#Inibe todos os registos cujo campo (1º valor do tuple), for igual ao valor(2º valor do tuple),
#desde que não façam parte de um dos grupos da lista(3º valor do tuple).
self.__records_view__ = []
#Permite organizar os campos em tabs sempre que o formulário for do tipo edit
self.__tabs__ = []
#Não permite editar quando um determinado campo tiver os valores da lista
self.__no_edit__ = []
#Esta opção permite definir o campo ou os campos que servirão para enviar para as combobox
self.__get_options__ = []
#Esta opção serve para definir que colunas deveremos considerar em caso de JOIN depois melhorar isto
self.__join_columns__ = {}
#Esta opção serve para colorir os registos conçoante o valor de um determinado campo ou campos
self.__record_colors__ = []
#[('estado',{'Novo':'Black', 'Enviado':'Red'})]
self.__force_db__ = False
#No caso de eu fazer algo a partir da lista utilizando o sidebar tenho que definir o __force_db__ para true para que vá buscar o record na Base de Dados e não no request, dado que se estou na lista e não no edit não terei os valores que necessito no request.
self.__db_mode__ = 'Table'
#pode ser 'Table', 'View' ou 'None' e serve para definir o comportamento em relação à base de dados, se for 'Table' tem o comportamento normal, se for 'View' tenho que definir o __on_create_sql__ com o query para criar a view e se for 'None' não influencia nada na base de dados e não aparecem os botões de gravar,etc pois será utilizado em wizards ou formulários para recolha de dados que serão utilizados para uma qualquer função tipo imprimir um relatório.
#Gestão de Permissões
self.__auth__ = {
'read':['All'],
'write':['All'],
'create':['All'],
'delete':['All'],
'full_access':['all']
}#não necessita de pôr "Administrator" pois por defeito tem acesso total!!! podemos utilizar a keyword "All" que significa que todos tem aquele tipo de acesso! quem for colocado em full_access não necessita de ser colocado nas restantes categorias!
# def estado_dyn_attrs(self, value):
# # permite devolver atributos dinamicos ou seja atributos html que mudam consoante por exemplo valores de certos campos
# result = {}
# #if value == 'Rascunho':
# # result = {'total':'hidden', 'data':'hidden'}
# #elif value in ['Confirmado','Facturado']:
# # result = {'total':'disabled', 'data':'disabled'}
# return result
# def get_options(self, cliente=None):
# #no get_options se eu acrescentar argumentos além do habitual "self" tenho que os ter em conta, no caso dos many2many pode ser utilizado para definir field_filters que limitam o que pode ser acrescentado na lista,
# options = []
# opts = self.get()
# for f in self.__fields__:
# if f[0] == 'cliente':
# field=f
# for option in opts:
# if cliente:
# if str(option['cliente']) == str(cliente):
# nome_cliente = get_field_value(record=option, field=field, model=self) ['field_value'][1]
# options.append((str(option['id']), '{numero}'.format(data=str(option['data']), numero=str(option['numero']), cliente=nome_cliente,total=self.get_total(option['id']))))
# else:
# nome_cliente = get_field_value(record=option, field=field, model=self)['field_value']
# options.append((str(option['id']), '{numero}'.format(data=str(option['data']), numero=str(option['numero']), cliente=nome_cliente,total=self.get_total(option['id']))))
# return options
self.kargs = kargs
#print('os kargs no orm, modelo sao {var1}'.format(var1=self.kargs))
def get_options(self):
"""a variavel __get_options__ diz-nos o que mandar para as combobox, esta função pode ser substituída claro, caso não queiramos mandar o id como valor, o que é por defeito, não esquecer que nesse caso poderemos ter que por o parent como false para que não crie o campo na base de dados como VARCHAR(50) mas sim como string"""
def get_results():
#print('estou no get_options em ORM {var1}'.format(var1=self.__name__))
options = []
fields = []
if isinstance(self.__get_options__, list):
fields = self.__get_options__
else:
fields.append(self.__get_options__)
#print('self.kargs {var1}'.format(var1=str(self.kargs)))
if 'where' in self.kargs:
del self.kargs['where']
#print('self.kargs {var1} {var2} {var3}'.format(var1=str(self.kargs), var2=str(self.__order_by__), var3=str(fields)))
opts = self.get(order_by = self.__order_by__, fields = fields)
#print('opts do get_options {var1}'.format(var1=str(opts)))
for record in opts:
#print('{var1}'.format(var1=str(record)))
if isinstance(self.__get_options__, list):
model_options = ''
for option in self.__get_options__:
model_options += str(record[option]) + ' - '
model_options = model_options [:-3]
else:
model_options = record[self.__get_options__]
options.append((str(record['id']), model_options))
return options
return erp_cache.get(key=self.__model_name__ + '_options', createfunc=get_results)
def put_many(self):
values_list = self.kargs['records']
created_ids = []
records = []
fields = ''
values = ''
for f in values_list[0]:
if f not in ('id', 'user'):
fields += f + ','
values += "%({field})s,".format(field=f)
fields = fields[:-1]
values = values[:-1]
fields += ",user_create,date_create,id,active"
values += ",%(user_create)s,%(date_create)s,%(id)s,True"
for record in values_list:
record['user_create'] = str(record['user'])
record['date_create'] = str(datetime.datetime.today())
if 'id' not in record:
record['id'] = get_identity(table=self.__name__, user=record['user'])
records.append(record)
created_ids.append(record['id'])
records = tuple(records)
sql = "INSERT INTO {table} ({fields}) VALUES ({values});\n".format(table=self.__name__, fields=fields, values=values)
#print(sql)
with getcursor() as cursor:
cursor.executemany(sql, records)
# except Exception, err:
# etype = sys.exc_type
# try:
# ename = etype.__name__
# except AttributeError:
# ename = etype
# return str(ename) + ":", sys.exc_value
return created_ids
@verify_orm_rights
def put(self):
#print('im in put de ORM')
#sempre que actualizo um objecto tenho que limpar o cache para que seja recriado
#print('{var1}'.format(var1=str(self.kargs)))
#for attr in dir(self):
# if 'get_options' in attr:
# mycache = self.cache.get_cache(attr, expire=1)
# mycache.clear()
#este modelo pode eventualmente ter algo na frente de model_name
#print('{var1}'.format(var1=str(erp_cache.namespace.keys())))
erp_cache.remove_value(key=self.__model_name__)
row_id = None
if self.__db_mode__ not in ['None', 'View']:
#print('not in none view')
if self.kargs:
#print('kargs {var1}'.format(var1=str(self.kargs)))
fields_dict = self.kargs
else:
#print('not kargs')
fields_dict = {}
for f in get_model_fields(self):
#print('type(f) {var1}'.format(var1=str(type(f))))
if hasattr(self, f[0]):
fields_dict[f[0]] = eval('self.' + f[0])
fields = ''
values = ''
fields_values = ''
for f in fields_dict:
if f not in ('id', 'user', 'user_change', 'date_change', 'active'):
if fields_dict[f] not in ['None', '', None]:
fields += f + ','
if fields_dict[f] == 'Null':
values += "{field_value},".format(field_value=fields_dict[f])
fields_values += "{field} = {field_value},".format(field=f, field_value=fields_dict[f])
else:
field_value=fields_dict[f]
if isinstance(field_value, str):
field_value=field_value.replace("'", "''")
values += "'{field_value}',".format(field_value=field_value)
fields_values += "{field} = '{field_value}',".format(field=f, field_value=field_value)
fields = fields[:-1]
values = values[:-1]
fields_values = fields_values[:-1]
#print('{var1}'.format(var1=str(fields_dict)))
try:
if 'id' in fields_dict and fields_dict['id'] not in ['', '0', 0, 'None', None]:
if fields_values:
fields_values += ','
fields_values += "user_change='{user}',date_change='{date}'".format(user=str(self.kargs['user']), date=str(datetime.datetime.today()))
sql = "UPDATE {table} SET {values} where id='{key}'".format(table=self.__name__, values=fields_values, key=self.kargs['id'])
row_id = fields_dict['id']
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
else:
#print('fields {var1}'.format(var1=str(fields)))
if fields:
fields += ','
values += ','
#print('self.kargs {var1} {var2}'.format(var1=str(self.kargs), var2=str(fields_dict)))
fields += "user_create,date_create,id,active"
values += "'{user}','{date}','{new_id}',True".format(user=str(fields_dict['user']), date=str(datetime.datetime.today()),new_id=get_identity(table=self.__name__, user=str(fields_dict['user'])))
sql = "INSERT INTO {table} ({fields}) VALUES ({values}) RETURNING id".format(table=self.__name__, fields=fields, values=values)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
row_id = cursor.fetchone()['id']
#print('{var1}'.format(var1=str(row_id)))
except Exception as err:
row_id = str(err)
# if 'does not exist' in str(err) or 'has no column named' in str(err):
# syncModel(self)
# #self.put()
# else:
# etype = sys.exc_info()[0]
# try:
# ename = etype.__name__
# except AttributeError:
# ename = etype
# return str(ename) + ":", sys.exc_info()[1]
return row_id
@verify_orm_rights
def get(self, order_by=None, key=None, limit=None, offset=None, fields=[]):
"""vai buscar dados na bd deste modelo, o fields serve para só ir buscar alguns campos e assim melhorar a performance"""
#print('im in get do ORM')
result = []
if self.__db_mode__ != 'None':
table = self.__name__
#print('table {var1}'.format(var1=table))
if 'where' in self.kargs:# and self.kargs['where'] != ''
where = 'WHERE ({table}.active=True OR {table}.active is NULL) AND '.format(table=self.__name__) + self.kargs['where'].replace('None', '0')
elif hasattr(self, 'where'):
where = 'WHERE ({table}.active=True OR {table}.active is NULL) AND '.format(table=self.__name__) + self.where.replace('None', '0')
else:
where = 'WHERE ({table}.active=True OR {table}.active is NULL) '.format(table=self.__name__)
#print('where {var1}'.format(var1=where))
if 'join' in self.kargs:
join = self.kargs['join']
else:
join = ''
if limit:
limit = 'LIMIT ' + str(limit)
else:
limit = ''
if offset:
offset = 'OFFSET ' + str(offset)
else:
offset = ''
if order_by:
order_by = 'ORDER BY ' + str(order_by)
else:
order_by = ''
if key or key==[]:
if where:
where += ' AND '
else:
where = 'WHERE ({table}.active=True OR {table}.active is NULL) AND '.format(table=self.__name__)
#print(where)
if key not in ['None', None]:
if isinstance(key,list):
if len(key) > 1:
where += """{table}.id in {ids}""".format(ids=tuple(key), table=table)
elif len(key) == 0:
where += """{table}.id = '0' """
else:
where += """{table}.id = '{ids}'""".format(ids=key[0], table=table)
else:
where += """{table}.id = '{ids}'""".format(ids=key, table=table)
else:
where += """{table}.id = '0' """.format(table=table)
return_fields = '{table}.id'.format(table=table)
#print(return_fields, 'cheguei em baixo')
if fields:
for field in fields:
if field != 'id':
return_fields += ', ' + table + '.' + field
else:
return_fields = '*'
#Executar o código
sql = """SELECT {fields} FROM {table} {join} {where} {order_by} {limit} {offset}""".format(table=table, join=join, where=where, order_by=order_by,limit=limit, offset=offset, fields=return_fields)
#print(sql)
try:
with getcursor() as cursor:
cursor.execute(sql)
result = cursor.fetchall()
except Exception as err:
if 'relation "users" does not exist' in str(err) or 'relation "role" does not exist' in str(err) or 'relation "sequence" does not exist' in str(err) or 'relation "identity" does not exist' in str(err):
create_base_tables()
#self.get(limit=limit, offset=offset, key=key)
elif 'does not exist' in str(err):
#print ('{var1}'.format(var1=err))
syncModel(self)
#self.get(limit=limit, offset=offset, key=key)
else:
etype = sys.exc_info()[0]
try:
ename = etype.__name__
except AttributeError:
ename = etype
result = str(ename) + ":", sys.exc_info()[1]
#print(result)
return result
@verify_orm_rights
def delete(self):
#print('in delete de orm')
if 'where' in self.kargs:
where = 'WHERE {where}'.format(where=self.kargs['where'])
elif hasattr(self, 'where'):
where = 'WHERE {where}'.format(where=self.where)
else:
where = 'WHERE id=None'
#print('{var1}'.format(var1=where))
#print('user {var1}'.format(var1=str(self.kargs['user'])))
sql = "UPDATE {table} SET active=False, user_change='{user}', date_change='{date}' {where}".format(table=self.__name__, where=where, user=str(self.kargs['user']), date=str(datetime.datetime.today()))
#print(sql)
try:
with getcursor() as cursor:
cursor.execute(sql)
row_count = cursor.rowcount
result = row_count
except Exception as err:
etype = sys.exc_info()[0]
try:
ename = etype.__name__
except AttributeError:
ename = etype
return str(ename) + ":", sys.exc_info()[1]
return result
def get_m2m_ids(self, field_name, record):
"""Processa os many2many e devolve uma lista com os ids da tabela ascendente"""
#print('estou no orm em get_m2m_ids')
import objs
from utils import get_many2many_name, get_condition, get_model_fields
for f in get_model_fields(self):
if f[0] == field_name:
field = f[1]
parent_model = eval('objs.' + field.model_name + '()')
table = get_many2many_name(self.__name__, parent_model.__name__)
where = get_condition(field.condition, record=record)
#print('o meu where é', where)
sql = "SELECT * FROM {table} WHERE {where}".format(table=table, where=where)
#print(sql)
result = []
try:
with getcursor() as cursor:
cursor.execute(sql)
res = cursor.fetchall()
for r in res:
result.append(r[parent_model.__name__])
except Exception as err:
if 'does not exist' in str(err):
syncModel(self)
else:
etype = sys.exc_info()[0]
try:
ename = etype.__name__
except AttributeError:
ename = etype
return str(ename) + ":", sys.exc_info()[1]
#print('o resultado do m2m é ', result)
return result
def put_m2m(self):
"""Grava a relação entre duas tabelas na relação many2many """
import objs
from utils import get_many2many_name, get_model_fields
#print('orm put_m2m kargs {var1} {var2}'.format(var1=str(self.kargs), var2=str(dir(self))))
for f in get_model_fields(self):
if hasattr(f[1],'model_name') and f[1].model_name.split('.')[0] == self.kargs['parent_name']:
field = f[1]
parent_model = eval('objs.' + field.model_name + '()')
table = get_many2many_name(self.__name__, parent_model.__name__)
#print('table to write to! {var1}'.format(var1=table))
fields = """{field1},{field2},id""".format(field1=self.__name__, field2=parent_model.__name__)
values = """'{value1}', '{value2}','{new_id}'""".format(value1=self.kargs[self.__name__], value2=self.kargs[parent_model.__name__],new_id=get_identity(table=table, user=str(self.kargs['user'])))
sql = "INSERT INTO {table} ({fields}) VALUES ({values})".format(table=table, fields=fields, values=values)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
return 'ok'# aqui talvez um rowid qualquer relativo á relação ou algo assim... dificil no entanto não me parece grave dado que a maioria das vezes a relação terá apenas uma ocorrencia
def remove_m2m(self):
"""Elimina a relação entre as duas tabelas e no caso de ter varias relações entre as mesmas tabelas, elimina apenas uma"""
import objs
from utils import get_many2many_name, get_model_fields
#print('{var1}'.format(var1=str(self.kargs)))
for f in get_model_fields(self):
#print('{var1}'.format(var1=str(f)))
if f[0] == self.kargs['parent_name']:
field = f[1]
try:
parent_model = eval('objs.' + field.model_name + '()')
except:
return 'Verifique o model_name na definição do campo M2M!'
table = get_many2many_name(self.__name__, parent_model.__name__)
where = """WHERE {field1}='{value1}' AND {field2}='{value2}'""".format(field1=self.__name__, field2=parent_model.__name__, value1=self.kargs[self.__name__], value2=self.kargs[parent_model.__name__])
sql = "SELECT id from {table} {where}".format(table=table, where=where)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
result = cursor.fetchone()['id']
sql = "DELETE FROM {table} WHERE id='{result}'".format(table=table, result=result)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
return 'ok'
class dummy_model(Model):
pass
def create_base_tables():
"""Cria as tabelas base e prenche os valores iniciais!"""
#sql = 'CREATE TABLE IF NOT EXISTS identity (id SERIAL PRIMARY KEY, user_id VARCHAR(50), terminal INTEGER, table_name VARCHAR, number INTEGER);'
import objs
#print(sql)
#with getcursor() as cursor:
# cursor.execute(sql)
#print('sequence')
from base_models import Sequence
model = Sequence()
syncModel(model)
#print('users')
from users import Users
model = Users()
syncModel(model)
#print('role')
from role import Role
model = Role()
syncModel(model)
result = Users().get()
if len(result) == 0:
import base64
password = base64.encodestring('noops!admin'.encode('utf-8')).decode('utf-8')
new_user_id = get_identity(table='users', user=None)
sql = "INSERT INTO users (nome, login, password, email, estado, id, user_create, date_create, active) VALUES ('admin', 'admin', '{var1}', 'admin@localhost', 'active','{var2}','{var3}','{var4}', True);".format(var1=password,var2= new_user_id, var3=new_user_id, var4=str(datetime.datetime.today()))
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
result = Role().get()
if len(result) == 0:
new_role_id = get_identity(table='role', user=new_user_id)
sql = "INSERT INTO role (nome, id, user_create, date_create, active) VALUES ('Administrator', '{var1}','{var2}','{var3}', True);".format(var1=new_role_id, var2=new_role_id, var3=str(datetime.datetime.today()))
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
#sql = 'CREATE TABLE IF NOT EXISTS role_users (id VARCHAR(50) PRIMARY KEY, role INTEGER, user_id INTEGER);'
#with getcursor() as cursor:
# cursor.execute(sql)
new_id = get_identity(table='role_users', user=new_user_id)
sql = "INSERT INTO role_users (role, users, id) VALUES ('{var1}','{var2}','{var3}');".format(var1=new_role_id, var2=new_user_id, var3=new_id)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
def run_sql(sql):
#Executar o código depois deve morrer e ficar apenas o get, put e remove
#print('im in run_sql')
#temp = dummy_model()
#try:
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
result = cursor.fetchall()
# except Exception, err:
# if 'relation "users" does not exist' in str(err) or 'relation "role" does not exist' in str(err):
# result = 'create base tables!'
# create_base_tables()
# else:
# etype = sys.exc_type
# try:
# ename = etype.__name__
# except AttributeError:
# ename = etype
# result = str(ename) + ":", sys.exc_value
#print(result)
return result
def get(sql):
"""vai buscar dados na base de dados"""
#print('im in outer get')
#try:
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
result = cursor.fetchall()
# except Exception, err:
# etype = sys.exc_type
# try:
# ename = etype.__name__
# except AttributeError:
# ename = etype
# return str(ename) + ":", sys.exc_value
#print(result)
return result
def put(table, **kargs):
"""Serve para inserir valores na Base de Dados"""
#from utils import ustring
#print('im in outer put')
row_id = None
fields = ''
values = ''
fields_values = ''
for f in kargs:
if f not in ('id', 'user', 'user_change', 'date_change', 'active'):
if kargs[f] not in ['None', '']:
fields += f + ','
values += "'{field_value}',".format(field_value=kargs[f])
fields_values += "{field} = '{field_value}',".format(field=f, field_value=kargs[f])
fields = fields[:-1]
values = values[:-1]
fields_values = fields_values[:-1]
#print(1)
if 'id' in kargs:
fields_values += ",user_change='{user}',date_change='{date}'".format(user=str(kargs['user']), date=str(datetime.datetime.today()))
sql = "UPDATE {table} SET {values} where id='{key}'".format(table=table, values=fields_values, key=kargs['id'])
row_id = kargs['id']
else:
fields += ",user_create,date_create,id,active"
row_id = get_identity(table=table, user=str(kargs['user']))
values += ",'{user}','{date}','{new_id}', True".format(user=str(kargs['user']), date=str(datetime.datetime.today()),new_id=row_id)
sql = "INSERT INTO {table} ({fields}) VALUES ({values})".format(table=table, fields=fields, values=values)
#print(sql)
with getcursor() as cursor:
cursor.execute(sql)
#print('fim de put')
return row_id
def remove(table, where):
"""Serve para remover valores na Base de Dados mas na verdade atenas desactiva"""
#print ('Im on remove')
#try:
if where:
where = 'WHERE {where}'.format(where=where)
else:
where = ''
sql = "UPDATE {table} SET active=False {where}".format(table=table, where=where)
#print(sql)
with getcursor() as cursor:
#print('{var1}'.format(var1=sql))
cursor.execute(sql)
#print ('end of remove')
# except Exception, err:
# etype = sys.exc_type
# try:
# ename = etype.__name__
# except AttributeError:
# ename = etype
# return str(ename) + ":", sys.exc_value
return True
def remove_pos(table, where):
"""Serve para remover valores na Base de Dados e remove mesmo"""
#print ('Im on remove pos')
#try:
if where:
where = 'WHERE {where}'.format(where=where)
else:
where = ''
sql = "DELETE FROM {table} {where}".format(table=table, where=where)
#print(sql)
with getcursor() as cursor:
#print('{var1}'.format(var1=sql))
cursor.execute(sql)
#print ('end of remove pos')
# except Exception, err:
# etype = sys.exc_type
# try:
# ename = etype.__name__
# except AttributeError:
# ename = etype
# return str(ename) + ":", sys.exc_value
return True
class field(object):
"""Classe base para todos os objectos do tipo field"""
def __init__(self,
unique = False,
size = 0,
view_order = 0,
name = '',
value = '',
args = '',
edit_ok = True,
options = [],
parent = None,
source = '',
nolabel = False,
onlist = True,
search = True,
default = '',
onchange = False,
dynamic_atrs = False,
field_name = '',
model = None,
model_name = '',
condition = '',
fields = [],
show_footer = True,
sum = False,
hidden = False,
column = None,
list_edit_mode = None,
simple = False):
self.unique = unique# falta implementar isto nos campos para sempre que não queira-mos valores duplicados!
self.size = size
self.view_order = view_order
self.name = name
self.value = value
self.args = args
self.edit_ok = edit_ok
self.options = options
self.parent = parent
self.source = source
self.nolabel = nolabel
self.onlist = onlist
self.search = search
self.default = default
self.onchange = onchange
self.dynamic_atrs = dynamic_atrs
self.field_name = field_name
self.model = model
self.model_name = model_name
self.condition = condition
self.fields = fields
self.show_footer = show_footer
self.sum = sum
self.hidden = hidden
self.column = column
self.list_edit_mode = list_edit_mode #representa a forma como o edit da lista deve abrir o registo e pode ser inline, edit, popup, newwin, etc
self.simple = simple
#aqui penso que basta por hidden pois a plataforma ira converter para o que for adequado para cada widget e o nolabel
#tambem não é necessário, só o onlist pois mesmo estando escondido no form eu posso querer ver na lista
class separator():
pass
class new_line():
pass
class link():
pass
class many2many(field):
pass
class list_field(field):
pass
class function_field(field):
dbtype='varchar'
class string_field(field):
dbtype='varchar'
class email_field(field):
dbtype='varchar'
class image_field(field):
dbtype='varchar'
class upload_field(field):
dbtype='varchar'
class password_field(field):
dbtype='varchar'
class combo_field(field):
dbtype='varchar'
#apesar de por defeito ser varchar no caso de parent ser igual a true passa a ser VARCHAR(50) pois significa que é uma relaçao com outra tabela
constrains = 'fk_%(table)s_%(parent)s FOREIGN KEY (%(name)s) REFERENCES %(parent)s(id) ON DELETE RESTRICT'
class choice_field(field):
dbtype='VARCHAR(50)'
constrains = 'fk_%(table)s_%(parent)s FOREIGN KEY (%(name)s) REFERENCES %(parent)s(id) ON DELETE RESTRICT'
class parent_field(field):
dbtype = 'VARCHAR(50)'
constrains = 'fk_%(table)s_%(parent)s FOREIGN KEY (%(name)s) REFERENCES %(parent)s(id) ON DELETE RESTRICT'
class boolean_field(field):
dbtype='boolean'
class integer_field(field):
dbtype='integer'
class float_field(field):
dbtype='float'
class currency_field(field):
dbtype='decimal(10,2)'
class percent_field(field):
dbtype='decimal(4,2)'
class decimal_field(field):
dbtype='decimal(10,2)'
class date_field(field):
dbtype='date'
class time_field(field):
dbtype='time'
class text_field(field):
dbtype='text'
class message_field(field):
dbtype='text'
class info_field(field):
dbtype='varchar'
def get_identity(table, user):
return str(uuid.uuid4())
# import erp_config
# #print('inicio de identity')
# terminal = str(erp_config.terminal_id) #3 digitos
# if not user:
# user = terminal + '101100001'
# sql = "SELECT * from identity WHERE table_name = '{table}' AND user_id = '{user_id}' AND terminal='{terminal}'".format(table=table, user_id=str(user), terminal=str(terminal))
# #print('{var1}'.format(var1=sql))
# values = get(sql)
# #print('{var1}'.format(var1=str(values)))
# if values:
# values = values[0]
# number = int(values['number']) + 1
# sql = "UPDATE identity SET number='{number}' where id='{key}'".format(number=str(number), key=str(values['id']))
# else:
# number=1
# sql = "INSERT INTO identity (terminal, user_id, table_name, number) VALUES ('{terminal}', '{user_id}', '{table_name}', '{number}')".format(table_name=table, number=str(number), user_id=str(user), terminal=str(terminal))
# with getcursor() as cursor:
# cursor.execute(sql)
# #print('{var1}'.format(var1=str(user)))
# small_user = str(100 + int(str(user)[9:])) #3 digitos
# #print('{var1}'.format(var1=str(small_user)))
# number = str(100000 + number) #5 digitos
# return terminal + small_user + number