def LoadFile(fq_file):
''' Will always return an Instance, else False
'''
if not os.path.exists(fq_file):
return False
try:
with open(fq_file, 'r') as fh:
data = fh.readline()
data = data.strip()
zdict = eval(data)
order_def = OrderDef()
for key in zdict:
if key == OrderDef.IOKEY:
pw_def = TableDef(name=OrderDef.NONAME)
zrows = eval(zdict[key])
for row in zrows:
if pw_def.get_table_name() != row[0]:
if pw_def.get_table_name() != OrderDef.NONAME:
order_def.add_table(pw_def)
pw_def = TableDef(name=row[0])
pw_def.add_field(row[1], row[2])
order_def.add_table(pw_def)
else:
order_def._zdict[key] = zdict[key]
order_def.fixup()
return order_def
except Exception as ex:
print(ex.__traceback__)
return False
def assign(self, detect, table_name):
''' Populate ourselves based upon a detected set of fields. Effects are cumulative.
Returns True upon success, else False. '''
from SqltDAO.CodeGen01.TextDataDetector import TextData
assert (isinstance(detect, TextData))
self.sep = detect.sep
self.encoding = detect.encoding
ztable = TableDef(name=table_name)
for field in detect.fields:
if ztable.add_field(field[0], field[1]) is False:
return False
return self.add_table(ztable)
def Create(order_class, fields):
''' Create an OrderDef from an OrderClass + Fields. Raise an exception on error. '''
if isinstance(order_class, OrderClass) is False:
raise TypeError("Error: Instance of OrderClass is required.")
if not fields:
raise TypeError("Error: No fields detected.")
result = OrderDef()
data = order_class.__dict__()
for key in data:
result.zdict[key] = data[key]
ztable = TableDef(name=order_class.table_name)
for field in fields:
if ztable.add_field(field[0], field[1]) is False:
raise GenOrderError("Error: Invalid Data Definition.")
result.add_table(ztable)
return result
detect = Factory1.Detect(file)
print(detect.__dict__)
else:
from SqltDAO.Gui.DataPreferences import Dp1 as DataPreferences
pref = DataPreferences.Load('.')
zorder = OrderDef(name=OrderDef.DEFAULT_SCHEMA)
zname = zorder.project_name
print("zname", zname)
if os.path.exists(zname):
print("unlinking", zname)
os.unlink(zname)
for ss in range(4):
table = "zTable " + str(ss)
ztable = TableDef(name=table)
for ztype in TableDef.SupportedTypes:
ztable.add_field(table + ' ' + ztype, ztype)
zorder.add_table(ztable)
print("zorder:\n", zorder, '\n')
zname = zorder.project_name
# print("zname", zname)
if os.path.exists(zname):
print("unlinking", zname)
os.unlink(zname)
assert (Factory1.SaveFile(pref, zorder))
zorder2 = Factory1.LoadFile(zname)
# print("zorder2:\n", zorder2, '\n')
assert (zorder2 is not False)
assert (str(zorder) == str(zorder2))