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Start your free trialBrecht Philips
8,863 PointsUsername is not Unique
Hi i'm following the code in pycharm with sqlite and everything works i can create a table i can look at it but the unique part doesn't work.
This is the students class
From peewee import everything
from peewee import *
Make a slqlite connection and creates the database if it doesn't excist
db = SqliteDatabase('students.db')
Models in peewee are classes
class Student(Model): username = CharField(max_length=255, unique=True) points = IntegerField(default=0)
# Tell the model to witch database this belong to!
class Meta:
database = db
students = [ {'username':'BrechtPhilips', 'points':7000}, {'username':'SanneDeSmedt', 'points':100}, {'username':'King', 'points':10000}, {'username':'Liesse', 'points':1}, {'username':'HannePhilips', 'points':2980} ]
def add_students(): for student in students: try: Student.create(username=student['username'], points=student['points']) except IntegrityError: student_record = Student.get(username=student['username']) student_record.points = student['points'] student_record.save()
a common pattern for making code only run when the script is run
and not when it's imported
if name == 'main': db.connect() db.create_table(Student,safe=True) add_students()
But when i look at my database how it's created i get this sql statement: CREATE TABLE "student" ("id" INTEGER NOT NULL PRIMARY KEY, "username" VARCHAR(255) NOT NULL, "points" INTEGER NOT NULL)
Does anybody have ideas what i'm doing wrong?
Menno Willemse
Python Development Techdegree Graduate 9,610 PointsMenno Willemse
Python Development Techdegree Graduate 9,610 PointsHi Brecht,
I know i am a bit late, but just in case anyone is wondering:
The problem seems to be in the db.create_table(Student, safe=True) line
If you try amending it to db.create_tables([Student], safe=True) it should work.