For better understanding the code of save_session():
workouts_instances is the list of current WorkoutPlan instances,
WorkoutPlan stores instances of Training and Exercise,
Training stores instances of Exercise,
class WorkoutPlan:
def __init__(self, name, trainings=list(), exercises=list()):
self.name = name
self.trainings = trainings
self.exercises = exercises
...
class Training:
def __init__(self, name, exercises=list()):
self.name = name
self.exercises = exercises
...
class Exercise:
def __init__(self, name, details=dict()):
self.name = name
self.details = details
...
Here is the code of save_session():
def save_session():
"""Exports current data to .json file."""
data_to_save = {}
# add workout plans
for workout in workouts_instances:
data_to_save[workout.name] = {}
# add trainings
if workout.trainings:
data_to_save[workout.name]["trainings"] = {}
for training in workout.trainings:
data_to_save[workout.name]["trainings"][training.name] = {}
# add training exercises
if training.exercises:
data_to_save[workout.name]["trainings"][training.name]['exercises'] = {
exercise.name: {} for exercise in training.exercises
}
for exercise in training.exercises:
if exercise.details:
data_to_save[workout.name]["trainings"][training.name]['exercises'][exercise.name][
'details'] = {detail: value for detail, value in
exercise.details.items()}
# add exercises
if workout.exercises:
data_to_save[workout.name]["exercises"] = {}
exercises_to_save = data_to_save[workout.name]["exercises"]
for exercise in workout.exercises:
exercises_to_save[exercise.name] = {}
if exercise.details:
details = exercise.details
exercises_to_save[exercise.name]['details'] = {detail: value for detail, value in details.items()}
# with open(WORKOUTS_FILE, 'w') as json_file:
# json.dump(data_to_save, json_file, indent=4)
and here is the example of output, data stored in .json file:
{
"FBV - Full Body Workout": {
"description": "short decription",
"trainings": {
"Training A": {
"exercises": {
"squats": {
"details": {
"description": "squats with barbell",
"series": 4,
"repeats": 4,
"load": 70
}
}
}
}
},
"exercises": {
"some exercise name": {
"details": {
"description": "some description",
"series": 5,
"repeats": 5,
"load": 60
}
},
"bench press - wide": {
"details": {
"description": "bench press with wide grip",
"series": 5,
"repeats": 5,
"load": 60
}
}
}
}
}