def find(self, code):
seekSummary = SeekOffsetCalculator.determineSeekValueAndOffset(
self.lessonFileIndex, code)
jumpToSeekValue = seekSummary["jumpToSeekValue"]
currentLessonOffset = seekSummary["currentRecordOffset"]
with FileReader.open(self.filePath) as file:
file.seek(jumpToSeekValue)
currentLessonLines = file.read(currentLessonOffset)
print("*** Ders Kaydı ***")
print(currentLessonLines)
def find(self, no):
if no < 0:
print("Record is not a student!")
return
seekSummary = SeekOffsetCalculator.determineSeekValueAndOffset(self.studentFileIndex, no)
jumpToSeekValue = seekSummary["jumpToSeekValue"]
currentStudentOffset = seekSummary["currentRecordOffset"]
with FileReader.open(self.filePath) as file:
file.seek(jumpToSeekValue)
currentStudentLines = file.read(currentStudentOffset)
print("*** Öğrenci Kaydı ***")
print(currentStudentLines)
def update(self, no):
if no < 0:
print("Record is not a student!")
return
seekSummary = SeekOffsetCalculator.determineSeekValueAndOffset(self.studentFileIndex, no)
jumpToSeekValue = seekSummary["jumpToSeekValue"]
currentStudentOffset = seekSummary["currentRecordOffset"]
firstPartLines = []
lastPartLines = []
with FileReader.open(self.filePath) as file:
file.seek(0)
firstPartLines = file.read(jumpToSeekValue).splitlines()
print(firstPartLines)
file.seek(currentStudentOffset + jumpToSeekValue)
lastPartLines = file.read().splitlines()
print(lastPartLines)
with FileWriter.reset(self.filePath) as file:
file.seek(0)
if len(firstPartLines) > 0:
content = ""
for line in firstPartLines:
content += line + "\n"
file.writelines(content)
with FileWriter.update(self.filePath) as file:
file.seek(jumpToSeekValue)
student = StudentRecorder.create()
studentSummary = student.prepareSummaryAsWritableFormat()
file.write(studentSummary)
newStudentOffSetValue = len(studentSummary)
self.studentFileIndex[student.no] = newStudentOffSetValue
print("Öğrenci başarıyla güncellendi.")
with FileWriter.open(self.filePath) as file:
content = ""
for line in lastPartLines:
content += line + "\n"
file.writelines(content)
def update(self, code):
print(self.lessonFileIndex)
seekSummary = SeekOffsetCalculator.determineSeekValueAndOffset(
self.lessonFileIndex, code)
jumpToSeekValue = seekSummary["jumpToSeekValue"]
currentLessonOffset = seekSummary["currentRecordOffset"]
firstPartLines = []
lastPartLines = []
with FileReader.open(self.filePath) as file:
file.seek(0)
firstPartLines = file.read(jumpToSeekValue).splitlines()
print(firstPartLines)
file.seek(currentLessonOffset + jumpToSeekValue)
lastPartLines = file.read().splitlines()
print(lastPartLines)
with FileWriter.reset(self.filePath) as file:
file.seek(0)
if len(firstPartLines) > 0:
content = ""
for line in firstPartLines:
content += line + "\n"
file.writelines(content)
with FileWriter.update(self.filePath) as file:
file.seek(jumpToSeekValue)
lesson = LessonRecorder.create()
lessonSummary = lesson.prepareSummaryAsWritableFormat()
file.write(lessonSummary)
newLessonOffSetValue = len(lessonSummary)
self.lessonFileIndex[lesson.code] = newLessonOffSetValue
print("Ders başarıyla güncellendi.")
with FileWriter.open(self.filePath) as file:
content = ""
for line in lastPartLines:
content += line + "\n"
file.writelines(content)
def __init__(self):
if path.isfile(self.filePath):
with FileReader.open(self.filePath) as file:
SeekOffsetCalculator.createRecordFileIndex(self.studentFileIndex, file, 4)
