def execute(self, environment):
try:
Struct.load()
# Verificamos que no pueden venir mas de 1 tabla en el clausula FROM
if len(self.fromcl.tables) > 1:
instruction.semanticErrors.append(
["Error sintactico cerco e en ','", self.row])
instruction.syntaxPostgreSQL.append(
"Error: 42601: Error sintactico cerca de , en la linea " +
str(self.row))
return "Error: syntax error at or near ','"
newEnv = Environment(environment, instruction.dbtemp)
instruction.envVariables.append(newEnv)
self.fromcl.execute(newEnv)
value = [newEnv.dataFrame[p] for p in newEnv.dataFrame]
labels = [p for p in newEnv.dataFrame]
for i in range(len(labels)):
newEnv.dataFrame[labels[i]] = value[i]
if self.wherecl == None:
w2 = newEnv.dataFrame.filter(labels)
else:
wh = self.wherecl.execute(newEnv)
w2 = wh.filter(labels)
# Si la clausula WHERE devuelve un dataframe vacio
if w2.empty:
return "Operacion UPDATE completada"
# Logica para realizar el update
table = self.fromcl.tables[0].name
pk = Struct.extractPKIndexColumns(instruction.dbtemp, table)
# Se obtienen las parametros de las llaves primarias para proceder a eliminar
rows = []
if pk:
for row in w2.values:
rows.append([row[p] for p in pk])
else:
rows.append([i for i in w2.index])
print(rows)
# Obtenemos las variables a cambiar su valor
ids = [p.id for p in self.values]
values = [p.execute(newEnv).value for p in self.values]
ids = Struct.getListIndex(instruction.dbtemp, table, ids)
if len(ids) != len(values):
return "Error: Columnas no encontradas"
temp = {}
for i in range(len(ids)):
temp[ids[i]] = values[i]
print(temp, rows)
# TODO: La funcion del STORAGE esta bugueada
bug = False
for row in rows:
result = jsonMode.update(instruction.dbtemp, table, temp, rows)
if result != 0:
bug = True
break
if bug:
return ["Error: Funcion UPDATE del Storage", temp, rows]
return "Operacion UPDATE completada"
except:
instruction.syntaxPostgreSQL.append(
"Error: P0001: Error en la instruccion UPDATE")
def f_elimnar_db(self):
dll_db = simpledialog.askstring("Delete DB", "Ingresar nombre")
query = "drop database " + dll_db + ";"
#print(query)
self.send_scritp(query)
databases.load()
self.f_charge_treeview()
def execute(self, environment):
if self.option == "RENAME":
valor = jsonMode.alterDatabase(self.name, self.newname)
if valor == 2:
sintaxPostgreSQL.insert(
len(sintaxPostgreSQL),
"Error: 42P01: La base de datos " + str(self.name) +
" no existe",
)
return "La base de datos no existe"
if valor == 3:
semanticErrors.insert(
len(semanticErrors),
"El nuevo nombre para la base da datos ya existe",
)
return "El nuevo nombre para la base de datos existe"
if valor == 1:
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: XX000: Error interno")
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 0:
Struct.alterDatabaseRename(self.name, self.newname)
return "Instruccion ejecutada con exito ALTER DATABASE RENAME"
return "Error ALTER DATABASE RENAME"
elif self.option == "OWNER":
valor = Struct.alterDatabaseOwner(self.name, self.newname)
if valor == 0:
return "Instruccion ejecutada con exito ALTER DATABASE OWNER"
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: XX000: Error interno")
return "Error ALTER DATABASE OWNER"
return "Fatal Error ALTER DATABASE"
def validateConstraint(values, record, database, table, type_):
# values = [name,[exp1,exp2,op,type1,type2]]
# record = [val1,val2,...,valn]
name = values[0]
value1 = values[1][0]
value2 = values[1][1]
op = values[1][2]
type1 = values[1][3]
type2 = values[1][4]
index1 = 0
index1 = 0
if type1 == "ID":
index1 = S.getIndex(database, table, value1)
value1 = record[index1].value
if type2 == "ID":
index2 = S.getIndex(database, table, value2)
value2 = record[index2].value
insert = CheckOperation(value1, value2, type_, op)
try:
if not insert:
lstErr.append("El registro no cumple con la restriccion")
elif insert:
return
else:
lstErr.append(insert)
except:
lstErr.append(insert)
def execute(self, environment):
result = jsonMode.createDatabase(self.name)
"""
0: insert
1: error
2: exists
"""
if self.mode == None:
self.mode = 1
if result == 0:
Struct.createDatabase(self.name, self.mode, self.owner)
report = "Base de datos insertada"
elif result == 1:
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: XX000: Error interno")
report = "Error al insertar la base de datos"
elif result == 2 and self.replace:
Struct.replaceDatabase(self.name, self.mode, self.owner)
report = "Base de datos reemplazada"
elif result == 2 and self.exists:
report = "Base de datos no insertada, la base de datos ya existe"
else:
report = "Error: La base de datos ya existe"
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: 42P04: base de datos duplicada")
return report
def execute(self, environment):
nCol = self.count()
result = jsonMode.createTable(dbtemp, self.name, nCol)
"""
Result
0: insert
1: error
2: not found database
3: exists table
"""
if result == 0:
insert = Struct.insertTable(dbtemp, self.name, self.columns,
self.inherits)
if insert == None:
report = "Tabla " + self.name + " creada"
else:
jsonMode.dropTable(dbtemp, self.name)
Struct.dropTable(dbtemp, self.name)
report = insert
elif result == 1:
report = "Error: No se puedo crear la tabla: " + self.name
elif result == 2:
report = "Error: Base de datos no encontrada: " + dbtemp
elif result == 3 and self.exists:
report = "Tabla no creada, ya existe en la base de datos"
else:
report = "Error: ya existe la tabla " + self.name
return report
def execute(self, environment):
result = jsonMode.createDatabase(self.name)
"""
0: insert
1: error
2: exists
"""
if self.mode == None:
self.mode = 1
if result == 0:
Struct.createDatabase(self.name, self.mode, self.owner)
report = "Base de datos: " + self.name + " insertada."
elif result == 1:
instruction.syntaxPostgreSQL.append("Error: XX000: Error interno")
report = "Error al insertar la base de datos: " + self.name
elif result == 2 and self.replace:
Struct.replaceDatabase(self.name, self.mode, self.owner)
report = "Base de datos '" + self.name + " ' reemplazada."
elif result == 2 and self.exists:
report = "Base de datos no insertada, " + self.name + " ya existe."
else:
instruction.semanticErrors.append(
["La base de datos " + str(self.name) + " ya existe", self.row]
)
instruction.syntaxPostgreSQL.append(
"Error: 42P04: La base de datos " + str(self.name) + " ya existe"
)
report = "Error: La base de datos ya existe"
return report
def checkInsert(dbName, tableName, columns, values):
lstErr.clear()
table = S.extractTable(dbName, tableName)
if table == 0:
syntaxPostgreErrors.append("Error: 42000: La base de datos " +
str(dbName) + " no existe")
return ["Error: No existe la base de datos"]
elif table == 1:
syntaxPostgreErrors.append("Error: 42P01: La tabla " +
str(tableName) + " no existe")
return ["Error: No existe la tabla"]
if columns != None:
if len(columns) != len(values):
syntaxPostgreErrors.append(
"Error: 42611: definicion en numero de columnas invalida ")
return ["Columnas fuera de los limites"]
else:
if len(values) != len(table["columns"]):
syntaxPostgreErrors.append(
"Error: 42611: definicion en numero de columnas invalida ")
return ["Columnas fuera de los limites"]
values = S.getValues(table, columns, values)
if not values:
syntaxPostgreErrors.append("Error: 42P10: Columnas no identificadas ")
return ["Error: Columnas no identificadas"]
pks = []
indexCol = 0
for col in table["columns"]:
x = Type.get(col["type"])
value = values[indexCol]
if not isinstance(value, Primitive):
value = Primitive(x, value, 0, 0, 0)
values[indexCol] = value
if col["PK"]:
pks.append(indexCol)
indexCol += 1
# Validar la llave primaria
if pks:
validatePrimary(dbName, tableName, values, pks)
indexCol = 0
for value in values:
column = table["columns"][indexCol]
if value.value != None and value.type != TYPE.NULL:
value.value = convertDateTime(value.value, column["type"])
if column["Unique"]:
validateUnique(dbName, tableName, value.value, indexCol)
if column["FK"] != None:
validateForeign(dbName, column["FK"], value.value)
if column["Constraint"] != None:
validateConstraint(column["Constraint"], values, dbName,
tableName, column["type"])
select(column, value)
else:
value.value = None
validateNotNull(column["NN"], column["name"])
indexCol += 1
return [listError(), values]
def execute(self, environment):
alter = Struct.alterColumnsTable(dbtemp, self.table, self.params)
if alter == None:
alter = Checker.checkValue(dbtemp, self.table)
Struct.save()
if alter == None:
alter = "Tabla alterada: " + self.table
return alter
def execute(self, environment):
try:
if self.structure == "TABLE":
if instruction.dbtemp != "":
valor = jsonMode.dropTable(instruction.dbtemp, self.name)
if valor == 2:
instruction.semanticErrors.append([
"La base de datos " + str(instruction.dbtemp) +
" no existe",
self.row,
])
instruction.syntaxPostgreSQL.append(
"Error: 42000: La base de datos " +
str(instruction.dbtemp) + " no existe")
return "La base de datos no existe"
if valor == 3:
instruction.semanticErrors.append([
"La tabla " + str(self.name) + " no existe",
self.row
])
instruction.syntaxPostgreSQL.append(
"Error: 42P01: La tabla " + str(self.name) +
" no existe")
return "La tabla no existe en la base de datos"
if valor == 1:
instruction.syntaxPostgreSQL.append(
"Error: XX000: Error interno")
return "Hubo un problema en la ejecucion de la sentencia DROP"
if valor == 0:
Struct.dropTable(instruction.dbtemp, self.name)
return "DROP TABLE Se elimino la tabla: " + self.name
instruction.syntaxPostgreSQL.append(
"Error: 42000: Base de datos no especificada ")
return "El nombre de la base de datos no esta especificado operacion no realizada"
else:
valor = jsonMode.dropDatabase(self.name)
if valor == 1:
instruction.syntaxPostgreSQL.append(
"Error: XX000: Error interno")
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 2:
instruction.semanticErrors.append([
"La base de datos " + str(self.name) + " no existe",
self.row,
])
instruction.syntaxPostgreSQL.append(
"Error: 42000: La base de datos " + str(self.name) +
" no existe")
return "La base de datos no existe"
if valor == 0:
Struct.dropDatabase(self.name)
return "Instruccion ejecutada con exito DROP DATABASE"
instruction.syntaxPostgreSQL.append(
"Error: XX000: Error interno DROPTABLE")
return "Fatal Error: DROP TABLE"
except:
instruction.syntaxPostgreSQL.append(
"Error: P0001: Error en la instruccion DROP")
def execute(self, environment):
# insert = [posiblesErrores,noColumnas]
insert = Struct.insertTable(instruction.dbtemp, self.name,
self.columns, self.inherits)
error = insert[0]
nCol = insert[1]
if not error:
error = Checker.checkValue(instruction.dbtemp, self.name)
"""
Result
0: insert
1: error
2: not found database
3: exists table
"""
if not error:
result = jsonMode.createTable(instruction.dbtemp, self.name, nCol)
if result == 0:
pass
elif result == 1:
instruction.syntaxPostgreSQL.append(
"Error: XX000: Error interno")
return "Error: No se puede crear la tabla: " + self.name
elif result == 2:
instruction.semanticErrors.append("La base de datos " +
instruction.dbtemp +
" no existe")
instruction.syntaxPostgreSQL.append(
"Error: 3F000: base de datos" + instruction.dbtemp +
" no existe")
return "Error: Base de datos no encontrada: " + instruction.dbtemp
elif result == 3 and self.exists:
instruction.semanticErrors.append(
["La tabla " + str(self.name) + " ya existe", self.row])
instruction.syntaxPostgreSQL.append(
"Error: 42P07: La tabla " + str(self.name) + " ya existe")
return "La tabla ya existe en la base de datos"
else:
instruction.semanticErrors.append(
["La tabla " + str(self.name) + " ya existe", self.row])
instruction.syntaxPostgreSQL.append(
"Error: 42P07: tabla duplicada")
return "Error: ya existe la tabla " + self.name
pk = Struct.extractPKIndexColumns(instruction.dbtemp, self.name)
addPK = 0
if pk:
addPK = jsonMode.alterAddPK(instruction.dbtemp, self.name, pk)
if addPK != 0:
instruction.syntaxPostgreSQL.append(
"Error: 23505: Error en llaves primarias de la instruccion CREATE TABLE de la tabla "
+ str(self.name))
return "Tabla " + self.name + " creada"
else:
Struct.dropTable(instruction.dbtemp, self.name)
return error
def execute(self, environment):
Struct.load()
lista = []
for value in self.values:
lista.append(value.execute(environment).value)
result = Struct.createType(self.exists, self.name, lista)
if result == None:
report = "Type creado"
else:
report = result
return report
def execute(self, environment):
try:
if self.structure == "TABLE":
if dbtemp != "":
valor = jsonMode.dropTable(dbtemp, self.name)
if valor == 2:
sintaxPostgreSQL.insert(
len(sintaxPostgreSQL),
"Error: 42P01: La base de datos " +
str(self.name) + " no existe",
)
return "La base de datos no existe"
if valor == 3:
sintaxPostgreSQL.insert(
len(sintaxPostgreSQL),
"Error: 42P01: La tabla " + str(self.name) +
" no existe",
)
return "La tabla no existe en la base de datos"
if valor == 1:
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: XX000: Error interno")
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 0:
Struct.dropTable(dbtemp, self.name)
return "Instruccion ejecutada con exito DROP TABLE"
return "El nombre de la base de datos no esta especificado operacion no realizada"
else:
valor = jsonMode.dropDatabase(self.name)
if valor == 1:
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: XX000: Error interno")
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 2:
sintaxPostgreSQL.insert(
len(sintaxPostgreSQL),
"Error: 42P01: La base de datos " + str(self.name) +
" no existe",
)
return "La base de datos no existe"
if valor == 0:
Struct.dropDatabase(self.name)
return "Instruccion ejecutada con exito DROP DATABASE"
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: XX000: Error interno")
return "Fatal Error: DropTable"
except:
raise
def execute(self, environment):
# Verificamos que no pueden venir mas de 1 tabla en el clausula FROM
if len(self.fromcl.tables) > 1:
return "Error: syntax error at or near ','"
newEnv = Environment(environment, dbtemp)
self.fromcl.execute(newEnv)
value = [newEnv.dataFrame[p] for p in newEnv.dataFrame]
labels = [p for p in newEnv.dataFrame]
for i in range(len(labels)):
newEnv.dataFrame[labels[i]] = value[i]
if self.wherecl == None:
return newEnv.dataFrame.filter(labels)
wh = self.wherecl.execute(newEnv)
w2 = wh.filter(labels)
# Si la clausula WHERE devuelve un dataframe vacio
if w2.empty:
return "Operacion DELETE completada"
# Logica para eliminar
table = self.fromcl.tables[0].name
pk = Struct.extractPKIndexColumns(dbtemp, table)
# Se obtienen las parametros de las llaves primarias para proceder a eliminar
rows = []
if pk:
for row in w2.values:
rows.append([row[p] for p in pk])
else:
rows.append([i for i in w2.index])
print(rows)
# TODO: La funcion del STORAGE esta bugueada
"""
for row in rows:
result = jsonMode.delete(dbtemp, table, row)
print(result)
"""
return "Operacion DELETE completada"
def execute(self, environment):
result = jsonMode.extractTable(instruction.dbtemp, self.name)
if result == None:
instruction.semanticErrors.append(
[
"La tabla "
+ str(self.name)
+ " no pertenece a la base de datos "
+ instruction.dbtemp,
self.row,
]
)
instruction.syntaxPostgreSQL.append(
"Error: 42P01: la relacion "
+ instruction.dbtemp
+ "."
+ str(self.name)
+ " no existe"
)
return "FATAL ERROR TABLE ID"
# Almacena una lista con con el nombre y tipo de cada columna
lst = Struct.extractColumns(instruction.dbtemp, self.name)
columns = [l.name for l in lst]
newColumns = [self.name + "." + col for col in columns]
df = pd.DataFrame(result, columns=newColumns)
environment.addTable(self.name)
tempTypes = {}
for i in range(len(newColumns)):
tempTypes[newColumns[i]] = lst[i].type
return [df, tempTypes]
def execute(self, environment):
Struct.load()
try:
if self.option == "RENAME":
valor = jsonMode.alterDatabase(self.name, self.newname)
if valor == 2:
instruction.semanticErrors.append([
"La base de datos " + str(self.name) + " no existe",
self.row
])
instruction.syntaxPostgreSQL.append(
"Error: 42000: La base de datos " + str(self.name) +
" no existe")
return "La base de datos no existe: '" + self.name + "'."
if valor == 3:
instruction.semanticErrors.append([
"La base de datos " + str(self.newname) + " ya existe",
self.row,
])
instruction.syntaxPostgreSQL.append(
"Error: 42P04: La base de datos " +
str(self.newname) + " ya existe")
return "El nuevo nombre para la base de datos existe"
if valor == 1:
instruction.syntaxPostgreSQL.append(
"Error: XX000: Error interno")
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 0:
Struct.alterDatabaseRename(self.name, self.newname)
return ("Base de datos renombrada: " + self.name + " - " +
self.newname)
return "Error ALTER DATABASE RENAME: " + self.newname
elif self.option == "OWNER":
valor = Struct.alterDatabaseOwner(self.name, self.newname)
if valor == 0:
return "Instruccion ejecutada con exito ALTER DATABASE OWNER"
instruction.syntaxPostgreSQL.append(
"Error: XX000: Error interno")
return "Error ALTER DATABASE OWNER"
instruction.syntaxPostgreSQL.append("Error: XX000: Error interno")
return "Fatal Error ALTER DATABASE: " + self.newname
except:
instruction.syntaxPostgreSQL.append(
"Error: P0001: Error en la instruccion ALTER DATABASE")
def checkInsert(dbName, tableName, columns, values):
lstErr.clear()
S.load()
if columns != None:
if len(columns) != len(values):
return "Columnas fuera de los limites 1"
table = S.extractTable(dbName, tableName)
values = S.getValues(table, columns, values)
if table == 0:
return "No existe la base de datos"
elif table == 1:
return "No existe la tabla"
elif len(table["columns"]) != len(values):
return "Columnas fuera de los limites 2"
else:
pass
indexCol = 0
for value in values:
column = table["columns"][indexCol]
if value != None and value.type != TYPE.NULL:
if column["Unique"] or column["PK"]:
validateUnique(dbName, tableName, value.value, indexCol)
if column["FK"] != None:
validateForeign(dbName, column["FK"], value.value)
if column["Constraint"] != None:
validateConstraint(
column["Constraint"], values, dbName, tableName, column["type"]
)
select(column, value)
else:
validateNotNull(column["NN"], column["name"])
indexCol += 1
return [listError(), values]
def execute(self, environment):
nCol = self.count()
result = jsonMode.createTable(dbtemp, self.name, nCol)
"""
Result
0: insert
1: error
2: not found database
3: exists table
"""
if result == 0:
insert = Struct.insertTable(dbtemp, self.name, self.columns,
self.inherits)
if insert == None:
pk = Struct.extractPKIndexColumns(dbtemp, self.name)
addPK = 0
if pk:
addPK = jsonMode.alterAddPK(dbtemp, self.name, pk)
if addPK != 0:
print("Error en llaves primarias del CREATE TABLE:",
self.name)
report = "Tabla " + self.name + " creada"
else:
jsonMode.dropTable(dbtemp, self.name)
Struct.dropTable(dbtemp, self.name)
report = insert
elif result == 1:
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: XX000: Error interno")
report = "Error: No se puede crear la tabla: " + self.name
elif result == 2:
sintaxPostgreSQL.insert(
len(sintaxPostgreSQL),
"Error: 3F000: base de datos" + dbtemp + " no existe",
)
report = "Error: Base de datos no encontrada: " + dbtemp
elif result == 3 and self.exists:
report = "Tabla no creada, ya existe en la base de datos"
else:
report = "Error: ya existe la tabla " + self.name
sintaxPostgreSQL.insert(len(sintaxPostgreSQL),
"Error: 42P07: tabla duplicada")
return report
def execute(self, environment):
if self.option == "RENAME":
valor = jsonMode.alterDatabase(self.name, self.newname)
if valor == 2:
return "La base de datos no existe"
if valor == 3:
return "El nuevo nombre para la base de datos existe"
if valor == 1:
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 0:
Struct.alterDatabaseRename(self.name, self.newname)
return "Instruccion ejecutada con exito ALTER DATABASE RENAME"
return "Error ALTER DATABASE RENAME"
elif self.option == "OWNER":
valor = Struct.alterDatabaseOwner(self.name, self.newname)
if valor == 0:
return "Instruccion ejecutada con exito ALTER DATABASE OWNER"
return "Error ALTER DATABASE OWNER"
return "Fatal Error ALTER DATABASE"
def execute(self, environment):
Index = File.importFile("Index")
exists = Index.get(self.name)
result = []
if not exists:
if self.exists:
result.append("El INDEX : " + self.name + " no existe")
else:
result.append("Error: El INDEX : " + self.name + " no existe")
return result
if not self.id:
exists = Index.get(self.newName)
if not exists:
Index[self.newName] = Index.pop(self.name)
result.append("Se cambio el nombre del INDEX : " + self.name +
" a " + self.newName)
else:
result.append("Error: El INDEX : " + self.newName +
" ya existe")
else:
column = self.newName
index = Index[self.name]
for c in index["Columns"]:
if c["Name"] == column:
if type(self.id) == int:
table = index["Table"]
columns = Struct.extractColumns(
instruction.dbtemp, table)
if columns:
if self.id > len(columns):
result.append("Error fatal: INDEX " +
self.name +
"numero de columna invalido")
else:
col = columns[self.id - 1].name
c["Name"] = col
result.append("INDEX : " + self.name +
" cambio la columna " + column +
" por " + col)
else:
result.append("Error fatal: INDEX " + self.name)
else:
c["Name"] = self.id
result.append("INDEX : " + self.name +
" cambio la columna " + column +
" por " + self.id)
Index[self.name] = index
break
if result == []:
result.append("Error fatal: INDEX " + self.name +
" columna invalida : " + self.newName)
File.exportFile(Index, "Index")
return result
def execute(self, environment):
Struct.load()
tempDf = None
for i in range(len(self.tables)):
exec = self.tables[i].execute(environment)
data = exec[0]
types = exec[1]
if isinstance(self.tables[i], Select):
newNames = {}
subqAlias = self.aliases[i]
for (columnName, columnData) in data.iteritems():
colSplit = columnName.split(".")
if len(colSplit) >= 2:
newNames[columnName] = subqAlias + "." + colSplit[1]
types[subqAlias + "." + colSplit[1]] = columnName
else:
newNames[columnName] = subqAlias + "." + colSplit[0]
types[subqAlias + "." + colSplit[0]] = columnName
data.rename(columns=newNames, inplace=True)
environment.addVar(subqAlias, subqAlias, "TABLE", self.row, self.column)
else:
sym = Symbol(
self.tables[i].name,
None,
self.tables[i].row,
self.tables[i].column,
)
environment.addSymbol(self.tables[i].name, sym)
if self.aliases[i]:
environment.addSymbol(self.aliases[i], sym)
if i == 0:
tempDf = data
else:
tempDf = self.crossJoin([tempDf, data])
environment.dataFrame = tempDf
try:
environment.types.update(types)
except:
instruction.syntaxPostgreSQL.append(
"Error: P0001: Error en la instruccion SELECT clausula FROM"
)
return
def execute(self, environment):
result = jsonMode.extractTable(dbtemp, self.name)
if result == None:
return "FATAL ERROR TABLE ID"
# Almacena una lista con con el nombre y tipo de cada columna
lst = Struct.extractColumns(dbtemp, self.name)
columns = [l.name for l in lst]
newColumns = [self.name + "." + col for col in columns]
df = pd.DataFrame(result, columns=newColumns)
environment.addTable(self.name)
return df
def execute(self, environment):
Struct.load()
name = self.idIndex
if self.existIndex(name):
return "Error: ya existe un index con el nombre " + name
table = Struct.extractTable(instruction.dbtemp, self.idTable)
if table == 1 or table == 0:
return ("Error: no existe la tabla " + self.idTable +
" en la base de datos " + instruction.dbtemp)
try:
Index = File.importFile("Index")
indexBody = {}
indexBody["Table"] = self.idTable
indexBody["Unique"] = self.unique
indexBody["Method"] = self.usingMethod
indexBody["Columns"] = []
for c in self.optList:
col = {}
col["Name"] = c[0]
col["Order"] = c[1]
if c[2]:
nulls = c[2][0]
if c[2][1]:
nulls += " " + c[2][1]
else:
if col["Order"] == "DESC":
nulls = "NULLS FIRST"
else:
nulls = "NULLS LAST"
col["Nulls"] = nulls
indexBody["Columns"].append(col)
Index[name] = indexBody
File.exportFile(Index, "Index")
return "Index " + name + " creado"
except:
return "Error fatal"
def execute(self, environment):
result = jsonMode.createDatabase(self.name)
"""
0: insert
1: error
2: exists
"""
if self.mode == None:
self.mode = 1
if result == 0:
Struct.createDatabase(self.name, self.mode, self.owner)
report = "Base de datos insertada"
elif result == 1:
report = "Error al insertar la base de datos"
elif result == 2 and self.replace:
Struct.replaceDatabase(self.name, self.mode, self.owner)
report = "Base de datos reemplazada"
elif result == 2 and self.exists:
report = "Base de datos no insertada, la base de datos ya existe"
else:
report = "Error: La base de datos ya existe"
return report
def execute(self, environment):
if self.structure == "TABLE":
if dbtemp != "":
valor = jsonMode.dropTable(dbtemp, self.name)
if valor == 2:
return "La base de datos no existe"
if valor == 3:
return "La tabla no existe en la base de datos"
if valor == 1:
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 0:
Struct.dropTable(dbtemp, self.name)
return "Instruccion ejecutada con exito DROP TABLE"
return "El nombre de la base de datos no esta especificado operacion no realizada"
else:
valor = jsonMode.dropDatabase(self.name)
if valor == 1:
return "Hubo un problema en la ejecucion de la sentencia"
if valor == 2:
return "La base de datos no existe"
if valor == 0:
Struct.dropDatabase(self.name)
return "Instruccion ejecutada con exito DROP DATABASE"
return "Fatal Error: DropTable"
def execute(self, environment):
try:
# Verificamos que no pueden venir mas de 1 tabla en el clausula FROM
if len(self.fromcl.tables) > 1:
syntaxErrors.append(["Error sintactico cerca de ,", self.row])
syntaxPostgreSQL.append(
"Error: 42601: Error sintactico cerca de , en la linea "
+ str(self.row)
)
return "Error: syntax error at or near ','"
newEnv = Environment(environment, dbtemp)
global envVariables
envVariables.append(newEnv)
self.fromcl.execute(newEnv)
value = [newEnv.dataFrame[p] for p in newEnv.dataFrame]
labels = [p for p in newEnv.dataFrame]
for i in range(len(labels)):
newEnv.dataFrame[labels[i]] = value[i]
if self.wherecl == None:
return newEnv.dataFrame.filter(labels)
wh = self.wherecl.execute(newEnv)
w2 = wh.filter(labels)
# Si la clausula WHERE devuelve un dataframe vacio
if w2.empty:
return "Operacion DELETE completada"
# Logica para eliminar
table = self.fromcl.tables[0].name
pk = Struct.extractPKIndexColumns(dbtemp, table)
# Se obtienen las parametros de las llaves primarias para proceder a eliminar
rows = []
if pk:
for row in w2.values:
rows.append([row[p] for p in pk])
else:
rows.append([i for i in w2.index])
print(rows)
# TODO: La funcion del STORAGE esta bugueada
bug = False
for row in rows:
result = jsonMode.delete(dbtemp, table, row)
if result != 0:
bug = True
break
if bug:
return ["Error: Funcion DELETE del Storage", rows]
return "Operacion DELETE completada"
except:
syntaxPostgreSQL.append("Error: P0001: Error en la instruccion DELETE")
def validateForeign(database, values, value):
# values = [references,column]
references = values[0]
column = values[1]
records = jsonMode.extractTable(database, references)
if records == []:
lstErr.append("El Valor " + str(value) + " no es una llave foranea")
return
index = S.getIndex(database, references, column)
for record in records:
if value == record[index]:
return
lstErr.append("El Valor " + str(value) + " no es una llave primaria")
def checkValue(dbName, tableName):
lstErr.clear()
table = S.extractTable(dbName, tableName)
if table == 0 and table == 1:
return
for col in table["columns"]:
if col["Default"] != None:
if col["Default"][1] != 9:
value = expression.Primitive(TypeNumber.get(col["Default"][1]),
col["Default"][0], 0, 0, 0)
select(col, value)
if len(lstErr) != 0:
col["Default"] = None
else:
col["Default"] = None
return listError()
def ambiguityBetweenColumns(self, column):
"""
Encarga de buscar ambiguedad de una columna entre todas las tablas de
la clausula FROM
"""
env = self
i = 0
table = ""
for t in env.tables:
lst = Struct.extractColumns(env.database, t)
for l in lst:
if l.name == column:
i += 1
table = t
if i > 1:
print("Error: Existe ambiguedad entre la culumna:", column)
return
return table
def execute(self, environment):
result = jsonMode.extractTable(dbtemp, self.name)
if result == None:
sintaxPostgreSQL.insert(
len(sintaxPostgreSQL),
"Error: 42P01: la relacion " + dbtemp + "." + str(self.name) +
" no existe",
)
return "FATAL ERROR TABLE ID"
# Almacena una lista con con el nombre y tipo de cada columna
lst = Struct.extractColumns(dbtemp, self.name)
columns = [l.name for l in lst]
newColumns = [self.name + "." + col for col in columns]
df = pd.DataFrame(result, columns=newColumns)
environment.addTable(self.name)
tempTypes = {}
for i in range(len(newColumns)):
tempTypes[newColumns[i]] = lst[i].type
return [df, tempTypes]