Nice, now I understand the difference and I was able to apply it.
Quote:You use json.dump(python_object) to write a json file. You cannot dump() a TreeView, so you'll need to collect the TreeView items in Python object that can be dumped. Using something that has the same structure as the object returned by json.load() would be a good idea. Maybe you can use the same object?
I tried this way. Me selecciona el item, me lo modifica en el treeview pero en el json me borra lo previo.
selected = json_tree.focus()
data = json_tree.item(selected, text='', values=(str(logo_lb.get()),str(name_lb.get()),str(lastname_lb.get()),str(something_lb.get())))
with open('prueba1.json', 'w') as f:
json.dump({'Example': data}, f, indent=4)
I leave an example code.
import json
from tkinter import ttk
from tkinter import *
import tkinter as tk
ventana = tk.Tk()
ventana.title("Test")
ventana.geometry("1000x600")
frame1 = tk.Frame(ventana, bg="green", height=300, width=700)
frame1.grid(row=1, column=0)
frame2 = tk.Frame(ventana, bg="yellow", height=300, width=700)
frame2.grid(row=2, column=0)
frame_entry = tk.Frame(frame2) #Frame para los entry
frame_entry.pack(pady=20)
tree_frame = tk.Frame(frame1) #Frame para el arbol
tree_frame.pack(pady=20)
#style del tree
style = ttk.Style()
style.theme_use("clam")
style.configure("Treeview", background="#c7c7c7", foreground="black", rowheight=25,fieldbackground="#a1a1a1")
style.map("Treeview", background=[('selected','green')])
tree_scroll = Scrollbar(tree_frame) #Frame para el scrollbar del arbol
tree_scroll.pack(side=RIGHT, fill=Y)
#Lista Treeview
json_tree = ttk.Treeview(tree_frame, yscrollcommand=tree_scroll.set)
json_tree.pack()
#config scroll
tree_scroll.config(command=json_tree.yview)
#column
json_tree['column'] = ("Logo", "Name", "Last Name", "Something")
#column
json_tree.column("#0", width=0, minwidth=0)#Columna Fantasma
json_tree.column("Logo", anchor="w", width=120)
json_tree.column("Name", anchor="w", width=120)
json_tree.column("Last Name", anchor="w", width=120)
json_tree.column("Something", anchor="w", width=120)
#headings
json_tree.heading("#0", text="", anchor="w")#Columna Fantasma
json_tree.heading("Logo", text="Logo", anchor="w")
json_tree.heading("Name", text="Name", anchor="w")
json_tree.heading("Last Name", text="Last Name", anchor="w")
json_tree.heading("Something", text="Something", anchor="w")
#color rows
json_tree.tag_configure('par', background="#fff")
json_tree.tag_configure('inpar', background="#d6d6d6")
with open('prueba1.json', "r") as f:
data = json.load(f)
count=0
for record in data['Example']:
if count % 2 ==0:
json_tree.insert(parent='', index="end", iid=count, text="", values=(record['Logo'],record['Name'],record['Last Name'],record['Something']), tags=('par',))
else:
json_tree.insert(parent='', index="end", iid=count, text="", values=(record['Logo'],record['Name'],record['Last Name'],record['Something']), tags=('inpar',))
count+=1
#entrys
l1 = Label( frame_entry, text="Logo")
l1.grid(row=0, column=0)
logo_lb = Entry( frame_entry)
logo_lb.grid(row=1, column=0)
l2 = Label( frame_entry, text="Name")
l2.grid(row=0, column=1)
name_lb = Entry(frame_entry)
name_lb.grid(row=1, column=1)
l3 = Label( frame_entry, text="Last Name")
l3.grid(row=0, column=2)
lastname_lb = Entry(frame_entry)
lastname_lb.grid(row=1, column=2)
l4 = Label( frame_entry, text="Something")
l4.grid(row=0, column=3,)
something_lb = Entry(frame_entry)
something_lb.grid(row=1, column=3)
def select_record():
#Limpiar las cajas
logo_lb.delete(0,END)
name_lb.delete(0,END)
lastname_lb.delete(0,END)
something_lb.delete(0,END)
selected = json_tree.focus()
values = json_tree.item(selected,'values')
logo_lb.insert(0, values[0])
name_lb.insert(0,values[1])
lastname_lb.insert(0,values[2])
something_lb.insert(0,values[3])
select_btn = tk.Button(frame2, text="Select", command=select_record)
select_btn.pack(side=LEFT, ipadx=30,)
def update_record():
selected = json_tree.focus()
data = json_tree.item(selected, text='', values=(str(logo_lb.get()),str(name_lb.get()),str(lastname_lb.get()),str(something_lb.get()))) #guardar data
with open('prueba1.json', 'w') as f:
json.dump({'Example': data}, f, indent=4)
logo_lb.delete(0,END)
name_lb.delete(0,END)
lastname_lb.delete(0,END)
something_lb.delete(0,END)
update_btn = tk.Button(frame2, text="Update", command=update_record)
update_btn.pack(side=RIGHT,ipadx=30, pady=10)
ventana.mainloop()
{
"Example": [
{
"Logo": "C:/Users/*/Desktop/Tkinter/logos/selavalacarita.png",
"Name": "2",
"Last Name": "3",
"Something": "4"
},
{
"Logo": "C:/Users/*/Desktop/Tkinter/logos/selavalacarita.png",
"Name": "1",
"Last Name": "4",
"Something": "7"
}
]
}