doubt about python tkinter and sqlite3

[LONDER]

Hi
i'm trying to create a registration form with python tkinter sqlite3, but i have a problem, when i do the update of just one record record, all the names are updated (not just the one that was selected), and i have this issue when i try do add new data: "c.execute("INSERT INTO SCHOOL VALUES (:ID, :NAME, :BIRTH, :DOCS, :FATHER, :MOTHER, :CLASS)",
sqlite3.IntegrityError: UNIQUE constraint failed: SCHOOL.CLASS"

i would like some help to solve this problem, this is the code:

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from tkinter import * from tkinter import ttk import _sqlite3   root = Tk() root.title('trying again') root.geometry("1000x500")   data = [["1", ["BOB"], ["27/10/2020"], ["234512"], ["JOHN"], ["DOE"], ["6º"]],         ]   # conectar a database conn = _sqlite3.connect('tree_crm.db') c = conn.cursor() c.execute("""CREATE TABLE IF NOT EXISTS SCHOOL (        ID text,        NAME txt,        BIRTH txt,        DOCS txt,        FATHER txt,        MOTHER txt,        CLASS txt        oid PRIMARY KEY)         """)   # aDD RECORD TO TABLE   for record in data:     c.execute("INSERT INTO SCHOOL VALUES (:ID, :NAME, :BIRTH, :DOCS, :FATHER, :MOTHER, :CLASS)",               {                   'ID': str(record[0]),                   'NAME': str(record[1]),                   'BIRTH': str(record[2]),                   'DOCS': str(record[3]),                   'FATHER': str(record[4]),                   'MOTHER': str(record[5]),                   'CLASS': str(record[6])               }               )   conn.commit() conn.close()     def query_database():     conn = _sqlite3.connect('tree_crm.db')     c = conn.cursor()     c.execute("SELECT rowid, * FROM SCHOOL")     records = c.fetchall()       global count     count = 0     for record in records:         if count % 2 == 0:             my_tree.insert(parent='', index='end', iid=count, text='',                            values=(                                record[1], record[2], record[3], record[4], record[5], record[6], record[7], record[0]),                            tags=('evenrow',))         else:             my_tree.insert(parent='', index='end', iid=count, text='',                            values=(                                record[1], record[2], record[3], record[4], record[5], record[6], record[7], record[0]),                            tags=('oddrow',))         count += 1       print(records)       conn.commit()     conn.close()     style = ttk.Style() style.theme_use('default')   style.configure("Treeview",                 background="#D3D3D3",                 foreground="black",                 rowheigth=25,                 filedbackground="#D3D3D3")   style.map('Treeview',           background=[('selected', "#347083")])   tree_frame = Frame(root) tree_frame.pack(pady=10)   tree_scroll = Scrollbar(tree_frame) tree_scroll.pack(side=RIGHT, fill=Y)   my_tree = ttk.Treeview(tree_frame, yscrollcommand=tree_scroll) my_tree.pack()   tree_scroll.config(command=my_tree.yview)   my_tree['columns'] = ("ID", "NAME", "BIRTH", "DOCS", "FATHER", "MOTHER", "CLASS", "OID")   my_tree.column("#0", width=0, stretch=NO) my_tree.column("ID", anchor=W, width=140) my_tree.column("NAME", anchor=W, width=140) my_tree.column("BIRTH", anchor=CENTER, width=100) my_tree.column("DOCS", anchor=W, width=140) my_tree.column("FATHER", anchor=W, width=140) my_tree.column("MOTHER", anchor=W, width=140) my_tree.column("CLASS", anchor=W, width=140) my_tree.column("OID", anchor=W, width=50)   my_tree.heading("#0", text="", anchor=W) my_tree.heading("ID", text="ID", anchor=W) my_tree.heading("NAME", text="NAME", anchor=W) my_tree.heading("BIRTH", text="BIRTH", anchor=CENTER) my_tree.heading("DOCS", text="DOCS", anchor=W) my_tree.heading("FATHER", text="FATHER", anchor=W) my_tree.heading("MOTHER", text="MOTHER", anchor=W) my_tree.heading("CLASS", text="CLASS", anchor=W) my_tree.heading("OID", text="OID", anchor=W)   my_tree.tag_configure('oddrow', background="white") my_tree.tag_configure('evenrow', background="lightblue")   data_frame = LabelFrame(root, text="INFORMATION") data_frame.pack(fill="x", expand="yes", pady=20)   fn_ID = Label(data_frame, text="ID") fn_ID.grid(row=0, column=0, padx=10, pady=10) fn_ID = Entry(data_frame) fn_ID.grid(row=0, column=1, padx=10, pady=10)   fn_NAME = Label(data_frame, text="NAME") fn_NAME.grid(row=0, column=2, padx=10, pady=10) fn_NAME = Entry(data_frame) fn_NAME.grid(row=0, column=3, padx=10, pady=10)   fn_BIRTH = Label(data_frame, text="DOCS") fn_BIRTH.grid(row=0, column=4, padx=10, pady=10) fn_BIRTH = Entry(data_frame) fn_BIRTH.grid(row=0, column=5, padx=10, pady=10)   fn_DOCS = Label(data_frame, text="FATHER") fn_DOCS.grid(row=1, column=0, padx=10, pady=10) fn_DOCS = Entry(data_frame) fn_DOCS.grid(row=1, column=1, padx=10, pady=10)   fn_FATHER = Label(data_frame, text="MOTHER") fn_FATHER.grid(row=1, column=2, padx=10, pady=10) fn_FATHER = Entry(data_frame) fn_FATHER.grid(row=1, column=3, padx=10, pady=10)   fn_MOTHER = Label(data_frame, text="CLASS") fn_MOTHER.grid(row=1, column=4, padx=10, pady=10) fn_MOTHER = Entry(data_frame) fn_MOTHER.grid(row=1, column=5, padx=10, pady=10)   fn_OID = Label(data_frame, text="OID") fn_OID.grid(row=0, column=6, padx=10, pady=10) fn_OID = Entry(data_frame) fn_OID.grid(row=0, column=7, padx=10, pady=10)   fn_CLASS = Label(data_frame, text="BIRTH") fn_CLASS.grid(row=1, column=6, padx=10, pady=10) fn_CLASS = Entry(data_frame) fn_CLASS.grid(row=1, column=7, padx=10, pady=10)     # add records: def add_records():     my_tree.insert(parent='', index='end', text='',                    values=(                        fn_ID.get(), fn_NAME.get(), fn_CLASS.get(), fn_BIRTH.get(), fn_DOCS.get(),                        fn_FATHER.get(),                        fn_MOTHER.get(), fn_OID.get()), )     # update records: def update_records():     select = my_tree.focus()     my_tree.item(select, text="", values=(         fn_ID.get(), fn_NAME.get(), fn_CLASS.get(), fn_BIRTH.get(), fn_DOCS.get(), fn_FATHER.get(),         fn_MOTHER.get(),        ), )     conn = _sqlite3.connect('tree_crm.db')     c = conn.cursor()     c.execute("""UPDATE SCHOOL SET               ID=:ID,               NAME=:NAME,               BIRTH=:BIRTH,               DOCS=:DOCS,               MOTHER=:MOTHER,               CLASS=:CLASS               WHERE oid=oid""",               {                   'ID': fn_ID.get(),                   'NAME': fn_NAME.get(),                   'BIRTH': fn_BIRTH.get(),                   'DOCS': fn_DOCS.get(),                   'FATHER': fn_FATHER.get(),                   'MOTHER': fn_MOTHER.get(),                   'CLASS': fn_CLASS.get(),               }     )       conn.commit()     conn.close()     # MOVE UP def up():     rows = my_tree.selection()     for row in rows:         my_tree.move(row, my_tree.parent(row), my_tree.index(row) - 1)     # MOVE DOWN def down():     rows = my_tree.selection()     for row in reversed(rows):         my_tree.move(row, my_tree.parent(row), my_tree.index(row) + 1)     # DELETE RECORDS SPECIFIC def remove_one():     x = my_tree.selection()     for record in x:         my_tree.delete(record)     def remove_all():     for record in my_tree.children():         my_tree.delete(record)     # delete all def clear_record():     fn_ID.delete(0, END)     fn_NAME.delete(0, END)     fn_CLASS.delete(0, END)     fn_BIRTH.delete(0, END)     fn_DOCS.delete(0, END)     fn_FATHER.delete(0, END)     fn_MOTHER.delete(0, END)     fn_CLASS.delete(0, END)     # SELECT RECORD def select_record(e):     fn_ID.delete(0, END)     fn_NAME.delete(0, END)     fn_CLASS.delete(0, END)     fn_BIRTH.delete(0, END)     fn_DOCS.delete(0, END)     fn_FATHER.delete(0, END)     fn_MOTHER.delete(0, END)     fn_CLASS.delete(0, END)     fn_OID.delete(0, END)       selected = my_tree.focus()     values = my_tree.item(selected, 'values')       # insert values     fn_ID.insert(0, values[0])     fn_NAME.insert(0, values[1])     fn_CLASS.insert(0, values[2])     fn_BIRTH.insert(0, values[3])     fn_DOCS.insert(0, values[4])     fn_FATHER.insert(0, values[5])     fn_MOTHER.insert(0, values[6])     fn_OID.insert(0, values[7])     # add butons: button_frame = LabelFrame(root, text="COMANDOS") button_frame.pack(fill="x", expand="yes", padx=20)   update_button = Button(button_frame, text="changing data", command=update_records) update_button.grid(row=0, column=0, padx=10, pady=10)   add_button = Button(button_frame, text="add data", command=add_records) add_button.grid(row=0, column=1, padx=10, pady=10)   remove_button = Button(button_frame, text="remove data", command=remove_one) remove_button.grid(row=0, column=2, padx=10, pady=10)   select_button = Button(button_frame, text="clear data", command=clear_record) select_button.grid(row=0, column=3, padx=10, pady=10)   move_button = Button(button_frame, text="move row down", command=down) move_button.grid(row=0, column=4, padx=10, pady=10)   move_button = Button(button_frame, text="move row up", command=up) move_button.grid(row=0, column=5, padx=10, pady=10)   # delete_button = Button(button_frame, text="remover tudo",command=remove_all) # delete_button.grid(row=0, column=7, padx=10, pady=10)   my_tree.bind("<ButtonRelease-1>", select_record) query_database() root.mainloop()

buran write Aug-12-2021, 11:21 AM:
Please, use proper tags when post code, traceback, output, etc. This time I have added tags for you.
See BBcode help for more info.

[deanhystad]

Write a short script to test your query. That removes tkinter and about 250 lines of code from the equation. I think your queries are formatted wrong, but I just cannot get past all that tkinter code to really see what is going on.

[ibreeden]

Hi @LONDER,

Error:
UNIQUE constraint failed: SCHOOL.CLASS

This means the CLASS column must be unique. This is a design error because it would mean there could only be one pupil in each class. So look at the definition of the table.

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CREATE TABLE IF NOT EXISTS SCHOOL (        ID text,        NAME txt,        BIRTH txt,        DOCS txt,        FATHER txt,        MOTHER txt,        CLASS txt        oid PRIMARY KEY)

At first sight I would say there is a comma missing after "CLASS txt". Because of this omission CLASS is a primary key, which implies a unique constraint.
But why is OID mentioned here? OID or ROWID is a pseudo column and it should not be defined. I don't understand why it gave no error. Perhaps it was meant to define the column "ID" to be a primary key. But the syntax to do so is:

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CREATE TABLE IF NOT EXISTS SCHOOL (        ID text,        NAME text,        BIRTH text,        DOCS text,        FATHER text,        MOTHER text,        CLASS text,        PRIMARY KEY(ID))

Or even easyer:

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CREATE TABLE IF NOT EXISTS SCHOOL        (        ID       text  PRIMARY KEY,        NAME     text,        BIRTH    text,        DOCS     text,        FATHER   text,        MOTHER   text,        CLASS    text        )

When you correct your source code, don't forget to drop the table in the database or else the error will remain.