def extractRow(self, name: str, columns: list, noLine, noColumn) -> list:
"""
Method to extract a record from a table
:param name: The name of table
:param columns: List with number of columns of primary keys
:param noLine: The instruction line
:param noColumn: The instruction column
:return: Returns nothing
"""
database = SymbolTable().useDatabase
if not database:
desc = f": Database not selected"
ErrorController().add(4, 'Execution', desc, noLine, noColumn)
return None
if not TypeChecker().searchTable(database, name):
desc = f": Table {name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
return None
data = data_mode(database.mode).extractRow(database.name.lower(),
name.lower(), columns)
if data == None:
ErrorController().add(34, 'Execution', '', noLine, noColumn)
return None
return data
def compile(self, environment):
database_id = SymbolTable().useDatabase
# ejecutando si hay llamada a alguna funcion
temps_array = []
for value in self.arr_values:
if isinstance(value, Funcion):
temps_array.append(value.compile(environment))
new_val = putVarValues(self._tac, temps_array, environment)
temp = ''
if new_val == self._tac: # Es un temporal --- quitar comillas
temp = ThreeAddressCode().newTemp()
if database_id is not None:
ThreeAddressCode().addCode(
f"{temp} = \"USE {database_id}; {new_val}\"")
else:
ThreeAddressCode().addCode(f"{temp} = \"{new_val}\"")
else:
temp = new_val
# LLAMANDO A FUNCION PARA ANALIZAR ESTA COCHINADA
temp1 = ThreeAddressCode().newTemp()
ThreeAddressCode().addCode(f"{temp1} = parse({temp})")
return temp1
def createDatabase(self, database: Database, line, column):
"""
Method to create a database in type checker
:param database: Database object
:param line: The instruction line
:param column: The instruction column
:return: Returns nothing
"""
if self.searchDatabase(database.name):
desc = f": Database {database.name} already exists"
ErrorController().add(30, 'Execution', desc, line, column)
return
dbStatement = data_mode(database.mode).createDatabase(
database.name.lower())
if dbStatement == 0:
self._typeCheckerList.append(database)
self.writeFile()
SymbolTable().add(database, 'New Database', 'Database', 'Global',
None, line, column)
DataWindow().consoleText(
'Query returned successfully: Database created')
elif dbStatement == 1:
desc = f": Can't create database {database.name}"
ErrorController().add(34, 'Execution', desc, line, column)
elif dbStatement == 2:
desc = f": Database {database.name} already exists"
ErrorController().add(30, 'Execution', desc, line, column)
def extractTable(self, name: str, noLine, noColumn) -> list:
"""
Method to get a list of records from a table
:param name: The name of table
:param noLine: The instruction line
:param noColumn: The instruction column
:return: Returns a list of records
"""
database = SymbolTable().useDatabase
if not database:
desc = f": Database not selected"
ErrorController().add(4, 'Execution', desc, noLine, noColumn)
return None
if not TypeChecker().searchTable(database, name):
desc = f": Table {name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
return None
# TODO Revisar Esto didier, que con lower me da problema al buscar tablas y base de datos
data = data_mode(database.mode).extractTable(database.name.lower(),
name.lower())
if data == None:
ErrorController().add(34, 'Execution', '', noLine, noColumn)
return None
return data
def generateColumns(self, nombreTabla, typeChecker):
for columna in self._column_list:
if isinstance(columna, CreateCol):
# columna._paramOne
# columna._paraTwos
# columna._tipoColumna
tipoFinal = {
'_tipoColumna': str(columna._type_column._tipoColumna),
'_paramOne': columna._type_column._paramOne,
'_paramTwo': columna._type_column._paramTwo
}
columnaFinal = Column(columna._column_name, tipoFinal)
if columna._properties != None:
for prop in columna._properties:
columnaFinal = self.addPropertyes(prop, columnaFinal)
tableToInsert = typeChecker.searchTable(
SymbolTable().useDatabase, nombreTabla)
validateCol = typeChecker.createColumnTable(
tableToInsert, columnaFinal, 0, 0)
# if return None an error ocurrio
if validateCol == None:
self._can_create_flag = False
return
def deleteDatabase(self, name: str, line, column):
"""
Method to remove a database in type checker
:param name: The name of the database
:param line: The instruction line
:param column: The instruction column
:return: Returns nothing
"""
database = self.searchDatabase(name)
if not database:
desc = f": Database {name} does not exist"
ErrorController().add(35, 'Execution', desc, line, column)
return
dbStatement = data_mode(database.mode).dropDatabase(name.lower())
if dbStatement == 0:
self._typeCheckerList.remove(database)
self.writeFile()
SymbolTable().delete(database)
DataWindow().consoleText(
'Query returned successfully: Database deleted')
elif dbStatement == 1:
desc = f": Can't drop database {name}"
ErrorController().add(34, 'Execution', desc, line, column)
elif dbStatement == 2:
desc = f": Database {name} does not exist"
ErrorController().add(35, 'Execution', desc, line, column)
def compile(self, instrucction):
temp = ThreeAddressCode().newTemp()
database_id = SymbolTable().useDatabase
if database_id is not None:
ThreeAddressCode().addCode(
f"{temp} = \"USE {database_id}; {self._tac}\"")
else:
ThreeAddressCode().addCode(f"{temp} = \"{self._tac}\"")
def getParams(self, name):
self.loadFile()
db = SymbolTable().useDatabase
key = f"{name}{db}"
if key in self.__storedProcedure:
return self.__storedProcedure[key]['tac'].params
return []
def process(self, instrucction):
typeNew = Type(self._name.alias)
for valor in self._values:
typeNew._values.append(valor.alias)
SymbolTable().add(typeNew._name, str(typeNew._values), 'TYPE', 'DB',
None, '0', '0')
print(typeNew)
# CREANDO C3D
temp = ThreeAddressCode().newTemp()
database_id = SymbolTable().useDatabase
if database_id is not None:
ThreeAddressCode().addCode(
f"{temp} = \"USE {database_id}; {self._tac}\"")
else:
ThreeAddressCode().addCode(f"{temp} = \"{self._tac}\"")
# LLAMANDO A FUNCION PARA ANALIZAR ESTA COCHINADA
temp1 = ThreeAddressCode().newTemp()
ThreeAddressCode().addCode(f"{temp1} = parse({temp})")
def process(self, instrucction):
typeChecker = TypeChecker()
database = typeChecker.searchDatabase(self._dbActual)
if not database:
desc = f": Database {self._dbActual} does not exist"
ErrorController().add(35, 'Execution', desc,
self._noLine, self._noColumn)
return
SymbolTable().useDatabase = database
DataWindow().consoleText('Query returned successfully: USE DATABASE')
def addInherits(self, nameChildTable, nameParentTable):
typeChecker = TypeChecker()
tablaPadre = typeChecker.searchTable(SymbolTable().useDatabase,
nameParentTable)
tablaHija = typeChecker.searchTable(SymbolTable().useDatabase,
nameChildTable)
# La tabla de la que hereda no existe
if tablaPadre == None:
desc = f": parent table dont exists"
ErrorController().add(27, 'Execution', desc, 0, 0)
self._can_create_flag = False
return
for colPar in tablaPadre._colums:
# Vamos a insertar en la hija
validarCol = typeChecker.createColumnTable(tablaHija, colPar, 0, 0)
# Si es una columna repetida entonces no puede crear la tabla
if validarCol == None:
self._can_create_flag = False
return
def addVar(self, id, _type, value, pos, line, col):
# id = id.lower()
if self.variables.get(id) == None:
SymbolTable().add(id, value, _type, self, None, line, col)
newVar = Variable(pos, _type, value, line, col)
self.variables[id] = newVar
return newVar
else:
print("VARIABLE DECLARADA ------ ERROR", id)
ErrorController().add(33, 'Execution',
f"VARIABLE {id} YA DECLARADA", line, col)
return self.getVar(id)
def alterAddPK(self, name: str, columns: list, noLine, noColumn):
"""
Method to define primary keys to a database
:param name: The name of table
:param columns: List with number of columns
:param noLine: The instruction line
:param noColumn: The instruction column
:return: Returns nothing
"""
database = SymbolTable().useDatabase
if not database:
desc = f": Database not selected"
ErrorController().add(4, 'Execution', desc, noLine, noColumn)
return
table = TypeChecker().searchTable(database, name)
if not table:
desc = f": Table {name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
return
dbStatement = data_mode(database.mode).alterAddPK(
database.name.lower(), name.lower(), columns)
if dbStatement == 0:
for col in table.columns:
if col.number in columns:
col.primaryKey = True
DataWindow().consoleText(
'Query returned successfully: Alter Table add PK')
elif dbStatement == 1:
ErrorController().add(34, 'Execution', '', noLine, noColumn)
elif dbStatement == 2:
desc = f": Database {database.name} does not exist"
ErrorController().add(35, 'Execution', desc, noLine, noColumn)
elif dbStatement == 3:
desc = f": Table {name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
elif dbStatement == 4:
desc = f": Multiple primary keys for table {database.name} are not allowed"
ErrorController().add(36, 'Execution', desc, noLine, noColumn)
elif dbStatement == 5:
desc = f": Column of relation {name} does not exist"
ErrorController().add(26, 'Execution', desc, noLine, noColumn)
class SymbolTableReport(object):
def __init__(self):
self._symbolTable = SymbolTable()
self._data = ''
def generateReport(self):
self._data = 'digraph {\n\ttbl [\n\tshape=plaintext\n\tlabel=<'
self._data += '\n\t\t<table border=\'0\' cellborder=\'1\' color=\'#324960\' cellspacing=\'0\'>'
self._data += '\n\t\t\t<tr>\n\t\t\t\t<td bgcolor="#324960" colspan=\'8\' SIDES=\"TB\">'
self._data += f"\n\t\t\t\t\t<font color=\"white\">SYMBOL TABLE</font>"
self._data += '\n\t\t\t\t</td>\n\t\t\t</tr>'
self.generateHeaders()
self._data += '\n\t\t</table>\n\t>];\n}'
return self._data
def generateHeaders(self):
self._data += '\n\t\t\t<tr>'
self.dataHeaderCol('ID')
self.dataHeaderCol('Name')
self.dataHeaderCol('Value')
self.dataHeaderCol('Type')
self.dataHeaderCol('Environment')
self.dataHeaderCol('References')
self.dataHeaderCol('Line')
self.dataHeaderCol('Column')
self._data += '\n\t\t\t</tr>'
for col in self._symbolTable.getList():
self._data += '\n\t\t\t<tr>'
self.dataCol(col.idSymbol)
self.dataCol(col.name)
self.dataCol(col.value)
self.dataCol(col.dataType)
self.dataCol(col.environment)
self.dataCol(col.references)
self.dataCol(col.row)
self.dataCol(col.column)
self._data += '\n\t\t\t</tr>'
def dataHeaderCol(self, name):
self._data += f"\n\t\t\t\t<td bgcolor=\"#4fc3a1\" SIDES=\"B\"><b><font color=\"white\"> {name} </font></b></td>"
def dataCol(self, data):
self._data += f"\n\t\t\t\t<td SIDES=\"B\"> {data} </td>"
def addForeignKey(self, listaCols, nombreTabla, listaTablasCols):
# the len of the cols must be de same
if len(listaCols) != len(listaTablasCols):
desc = f": cant of params in foreign() != "
ErrorController().add(36, 'Execution', desc, 0, 0)
self._can_create_flag = False
return
typeChecker = TypeChecker()
existForeingTable = typeChecker.searchTable(SymbolTable().useDatabase,
nombreTabla)
# validate if the foreign table exists
if existForeingTable == None:
desc = f": Undefined table in foreign key ()"
ErrorController().add(27, 'Execution', desc, 0, 0)
self._can_create_flag = False
return
# validate if the columns exists in the foreign table
for coli in listaTablasCols:
if typeChecker.searchColumn(existForeingTable, coli) == None:
desc = f": Undefined col in table in foreign key ()"
ErrorController().add(26, 'Execution', desc, 0, 0)
self._can_create_flag = False
return
bandera = False
for x in range(0, len(listaCols)):
for columna in self._column_list:
if isinstance(columna, CreateCol):
if (columna._column_name == listaCols[x]):
if columna._properties != None:
bandera = True
columna._properties[0]['fk_references_to'] = {
'_refTable': nombreTabla,
'_refColumn': listaTablasCols[x]
}
break
if not bandera:
desc = f": Undefined column in foreign key ()"
ErrorController().add(26, 'Execution', desc, 0, 0)
self._can_create_flag = False
return
bandera = False
def deleteColumn(self, table: Table, column: Column, noLine, noColumn):
"""
Method to remove a column in table
:param table: The name of table
:param column: Number of columns
:param noLine: The instruction line
:param noColumn: The instruction column
:return: Returns nothing
"""
database = SymbolTable().useDatabase
if not database:
desc = f": Database not selected"
ErrorController().add(4, 'Execution', desc, noLine, noColumn)
return
dbStatement = data_mode(database.mode).alterDropColumn(
database.name.lower(), table.name.lower(), column.number)
if dbStatement == 0:
if column:
table.remove(column)
self.updateColumnIndex(table)
self.writeFile()
DataWindow().consoleText(
'Query returned successfully: Column deleted')
return
desc = f": Column {column.name} does not exist"
ErrorController().add(26, 'Execution', desc, noLine, noColumn)
elif dbStatement == 1:
desc = f": Can't update Table {table.name}"
ErrorController().add(34, 'Execution', desc, noLine, noColumn)
elif dbStatement == 2:
desc = f": Database {database.name} does not exist"
ErrorController().add(35, 'Execution', desc, noLine, noColumn)
elif dbStatement == 3:
desc = f": Table {table.name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
elif dbStatement == 4:
desc = f": Column of relation {column.name} does not exist"
ErrorController().add(26, 'Execution', desc, noLine, noColumn)
def createColumnTable(self, table: Table, column: Column, noLine,
noColumn):
"""
Method to create a column in table
:param table: The name of table
:param column: Number of columns
:param noLine: The instruction line
:param noColumn: The instruction column
:return: Returns nothing
"""
database = SymbolTable().useDatabase
if not database:
desc = f": Database not selected"
ErrorController().add(4, 'Execution', desc, noLine, noColumn)
return
if self.searchColumn(table, column.name):
desc = f": Column {column.name} already exists"
ErrorController().add(29, 'Execution', desc, noLine, noColumn)
return
dbStatement = data_mode(database.mode).alterAddColumn(
database.name.lower(), table.name.lower(), column.default)
if dbStatement == 0:
if len(table.columns) > 0:
column.number = table.columns[-1].number + 1
table.columns.append(column)
self.writeFile()
DataWindow().consoleText(
'Query returned successfully: Table updated')
return True
elif dbStatement == 1:
desc = f": Can't update table {table.name}"
ErrorController().add(34, 'Execution', desc, noLine, noColumn)
elif dbStatement == 2:
desc = f": Database {database.name} does not exist"
ErrorController().add(35, 'Execution', desc, noLine, noColumn)
elif dbStatement == 3:
desc = f": Table {table.name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
def update(self, name: str, register: dict, columns: list, noLine,
noColumn):
"""
Method to update a record from a table
:param name: The name of table
:param register: Dictionary where the key is the column number and the value the data
:param columns: List with number of columns of primary keys
:param noLine: The instruction line
:param noColumn: The instruction column
:return: Returns nothing
"""
database = SymbolTable().useDatabase
if not database:
desc = f": Database not selected"
ErrorController().add(4, 'Execution', desc, noLine, noColumn)
return None
if not TypeChecker().searchTable(database, name):
desc = f": Table {name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
return None
dbStatement = data_mode(database.mode).update(database.name.lower(),
name.lower(), register,
columns)
if dbStatement == 0:
DataWindow().consoleText('Query returned successfully: UPDATE')
elif dbStatement == 1:
ErrorController().add(34, 'Execution', '', noLine, noColumn)
elif dbStatement == 2:
desc = f": Database {database.name} does not exist"
ErrorController().add(35, 'Execution', desc, noLine, noColumn)
elif dbStatement == 3:
desc = f": Table {name} does not exist"
ErrorController().add(27, 'Execution', desc, noLine, noColumn)
elif dbStatement == 4:
desc = f": Primary key does not exist"
ErrorController().add(34, 'Execution', desc, noLine, noColumn)