def alterAddPK(database: str, table: str, columns: list) -> int:
try:
retorno = 1
db = __buscarLlaveBaseDato(database)
if db is not None:
modoDB = db[0]
tablas = db[2]
if tablas:
if tablas.get(table) is not None:
modoDB = tablas[table]
if modoDB == "avl":
retorno = avl.alterAddPK(database, table, columns)
elif modoDB == "b":
retorno = b.alterAddPK(database, table, columns)
elif modoDB == "bplus":
retorno = bPlus.alterAddPK(database, table, columns)
elif modoDB == "dict":
retorno = dic.alterAddPK(database, table, columns)
elif modoDB == "isam":
retorno = isam.alterAddPK(database, table, columns)
elif modoDB == "json":
retorno = json.alterAddPK(database, table, columns)
elif modoDB == "hash":
retorno = hash.alterAddPK(database, table, columns)
if retorno == 0:
pk = generalDict[database][3]
pk.setdefault(table, columns)
generalDict[database][3] = pk
ser("data/info/datos.bin", generalDict)
return retorno
else:
return 2
except Exception:
return 1
def alterAddPK(database, table, columns):
if searchInMode(database) != None:
currentMode = searchInMode(database)
if currentMode == 'avl':
# avlList.append(tableNew)
return avl.alterAddPK(database, table, columns)
elif currentMode == 'b':
# bList.append(tableNew)
return b.alterAddPK(database, table, columns)
elif currentMode == 'bplus':
# bplusList.append(tableNew)
return bplus.alterAddPK(database, table, columns)
elif currentMode == 'dict':
# dictList.append(tableNew)
return DM.alterAddPK(database, table, columns)
elif currentMode == 'isam':
# isamList.append(tableNew)
return isam.alterAddPK(database, table, columns)
elif currentMode == 'json':
# jsonList.append(tableNew)
return j.alterAddPK(database, table, columns)
elif currentMode == 'hash':
# hashList.append(tableNew)
return Hash.alterAddPK(database, table, columns)
else:
return 2
def alterAddPK(database, table, columns):
dbs = databases.find_all(database)
if dbs == []:
return 2
for db in dbs:
if db.mode == "avl":
result = avlMode.alterAddPK(database, table, columns)
elif db.mode == "b":
result = BMode.alterAddPK(database, table, columns)
elif db.mode == "bplus":
result = BPlusMode.alterAddPK(database, table, columns)
elif db.mode == "dict":
result = DictMode.alterAddPK(database, table, columns)
elif db.mode == "isam":
result = ISAMMode.alterAddPK(database, table, columns)
elif db.mode == "json":
result = jsonMode.alterAddPK(database, table, columns)
elif db.mode == "hash":
result = HashMode.alterAddPK(database, table, columns)
if result != 3:
if result == 0:
db.tables.search(table).pk += columns
for x in range(5):
try:
Serializable.commit(databases, "lista_bases_de_datos")
return result
except:
break
return 1
break
return result
def alterAddPK(database: str, table: str, columns: list) -> int:
"""Adds a PK to a table in a database
Parameters:\n
database (str): name of the database
table (str): name of the table
columns (list): list with PK columns
Returns:\n
0: successful operation
1: an error ocurred
2: non-existent database
3: non-existent table
4: existent PK
5: PK out of bounds
"""
bd = _Buscar(database)
if bd:
mode = bd[1]
val = -1
if mode == "avl":
val = avl.alterAddPK(database, table, columns)
elif mode == "b":
val = b.alterAddPK(database, table, columns)
elif mode == "bplus":
val = bplus.alterAddPK(database, table, columns)
elif mode == "hash":
val = hash.alterAddPK(database, table, columns)
elif mode == "isam":
val = isam.alterAddPK(database, table, columns)
elif mode == "json":
val = json.alterAddPK(database, table, columns)
elif mode == "dict":
val = dict.alterAddPK(database, table, columns)
return val
else:
return 2
def __alter_add_pk_sp(database: str, table: str, columns: list,
mode: str) -> int:
dbs = databases.find_all(database)
if dbs == []:
return 2
if databases.find_table(database, table) == None:
return 3
for db in dbs:
if db.mode != mode:
continue
if db.mode == "avl":
result = avlMode.alterAddPK(database, table, columns)
elif db.mode == "b":
result = BMode.alterAddPK(database, table, columns)
elif db.mode == "bplus":
result = BPlusMode.alterAddPK(database, table, columns)
elif db.mode == "dict":
result = DictMode.alterAddPK(database, table, columns)
elif db.mode == "isam":
result = ISAMMode.alterAddPK(database, table, columns)
elif db.mode == "json":
result = jsonMode.alterAddPK(database, table, columns)
elif db.mode == "hash":
result = HashMode.alterAddPK(database, table, columns)
else:
continue
if result != 3:
if result == 0:
db.tables.search(table).pk += columns
for x in range(5):
try:
Serializable.commit(databases, "lista_bases_de_datos")
return result
except:
continue
return 1
break
return result
def __insertarDatosTablas(tablas: list, mode: str, modeOld: str,
database: str, codificacion: str) -> int:
try:
val = 1
retorno = 1
contador = 0
diccionarioLlaves = db =__buscarLlaveBaseDato(database)
diccionarioLlaves = diccionarioLlaves[3]
pk = 6
for x in tablas:
tablas = db[2] #Por si están en un modo nuevo de una tabla
if tablas:
if tablas.get(x) is not None:
modeOld = tablas[x] #fin de lo anterior
valor = __extraerContenidoTabla(x, modeOld, database)
eliminaTabla = dropTable(database, x)
columns = len(valor[0])
if valor is not None:
if valor != []:
cv = __CrearCsvTabla(valor, codificacion)
if cv == 0 and eliminaTabla == 0:
if mode == "avl":
val = avl.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =avl.alterAddPK(database, x, diccionarioLlaves[x])
retorno = avl.loadCSV("data/tablaValor.csv", database, x)
elif mode == "b":
val = b.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =b.alterAddPK(database, x, diccionarioLlaves[x])
retorno = b.loadCSV("data/tablaValor.csv", database, x)
elif mode == "bplus":
val = bPlus.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =bPlus.alterAddPK(database, x, diccionarioLlaves[x])
retorno = bPlus.loadCSV("data/tablaValor.csv", database, x)
elif mode == "dict":
val = dic.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =dic.alterAddPK(database, x, diccionarioLlaves[x])
retorno = dic.loadCSV("data/tablaValor.csv", database, x)
elif mode == "isam":
val = isam.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =isam.alterAddPK(database, x, diccionarioLlaves[x])
retorno = isam.loadCSV("data/tablaValor.csv", database, x)
elif mode == "json":
val = json.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =json.alterAddPK(database, x, diccionarioLlaves[x])
retorno = json.loadCSV("data/tablaValor.csv", database, x)
elif mode == "hash":
val = hash.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =avl.alterAddPK(database, x, diccionarioLlaves[x])
retorno = hash.loadCSV("data/tablaValor.csv", database, x)
contador = contador + 1
else:
if mode == "avl":
val = avl.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =avl.alterAddPK(database, x, diccionarioLlaves[x])
retorno = [1]
elif mode == "b":
val = b.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =b.alterAddPK(database, x, diccionarioLlaves[x])
retorno = [1]
elif mode == "bplus":
val = bPlus.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =bPlus.alterAddPK(database, x, diccionarioLlaves[x])
retorno = [1]
elif mode == "dict":
val = dic.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =dic.alterAddPK(database, x, diccionarioLlaves[x])
retorno = [1]
elif mode == "isam":
val = isam.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =isam.alterAddPK(database, x, diccionarioLlaves[x])
retorno = [1]
elif mode == "json":
val = json.createTable(database, x, columns)
if diccionarioLlaves.get(x) is not None:
pk =json.alterAddPK(database, x, diccionarioLlaves[x])
retorno = [1]
elif mode == "hash":
val = hash.createTable(database, x, columns)
retorno = [1]
if (val == 0 and len(retorno) != 0 and (pk == 6 or pk == 0)) \
or (contador == 0 and val == 0 and (pk == 6 or pk == 0)):
return 0
elif val == 3 and pk == 4:
return 0
else:
return 1
except Exception:
return 1