pcorpx / db-hack

devman_learning

db-hack

This script was made for studying data manipulation of Django database using shell

Getting Started

You can use it by copying content into Django shell directly or putting this script into folder with manage.py and importing it in a shell.

To import script in a shell use command:

from script import *

Getting all children

To get all children from db use function get_all_children:

all_chilren = get_all_children()

Getting a child

To get child use function get_child with argument child_name. Use unique name of a child to pass it.

child = get_child(child_name="Фролов Иван")

Getting marks

To get all marks of a child use function get_marks with only one compulsory argument child_name.

all_marks = get_marks(child_name="Фролов Иван")

To get bad marks use function get_marks. You should provide it with two arguments: first positional argument child_name is compulsory, second optional argument point_lte serves to filter marks by their value accordingly less or equal than value passed in the argument. (default value of point_lte is 5)

bad_marks = get_marks(child_name="Фролов Иван", points_lte=3)

Fixing marks

To fix marks use function fix_marks. It has first positional argument child_name which is compulsory and two optional arguments: point_lte (default value is 3) and first (default value is "no"). To fix all bad marks just provide function with child_name:

fixed_marks_number = fix_marks(child_name="Фролов Иван")

The function will return the number of bad marks were fixed.

Getting chastisements

To get all chastisements use function get_notes without arguments:

bad_notes = get_notes()

To get chastisements of a child use function get_notes() with argument child_name:

bad_notes = get_notes(child_name="Фролов Иван")

Removing chastisements

To remove chastisments of a child use function remove_chastisements with child_name argument:

removed_chastisements_number = remove_chastisements(child_name="Фролов Иван")

Getting lessons

To get all lessons use functions get_lessons without arguments:

all_lessons = get_lessons()

To get lessons of a child provide function with child_name argument:

lessons = get_lessons(child_name="Фролов Иван")

To get child lessons of certain subject use optional argument subject:

math_lessons = get_lessons(child_name="Фролов Иван", subject="Математика")

Getting a lesson

To get certain lesson of child use get_lesson function with three positional arguments child_name, subject, date:

lesson = get_lesson("Фролов Иван", "Математика", "2018-10-01")

Creating commendation

To create one commendation for certain lesson use create_commendation fumction with four arguments child_name, subject, words, date:

created_commendation = create_commendation("Фролов Иван", "Математика", "Хвалю", "2018-10-01")

Checking modifications made by script

Use your browser to follow this address: 127.0.0.1:8000 and check for data modifications

Prerequisites

You should clone and deploy e-diary using instructions in README there https://github.com/devmanorg/e-diary

Installation

To start Django shell just use:

python manage.py shell