142 lines
5.6 KiB
Python
Executable File
142 lines
5.6 KiB
Python
Executable File
"""
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Implementación básica librería TKinter
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"""
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from tkinter import ttk
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from tkinter import *
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import sqlite3
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class Producto:
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db = 'basededatos.db'
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def __init__(self, ventana):
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self.vent = ventana
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self.vent.title('Pro-LaP C \'Inventary\' ')
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# Creacion del contenedor del frame
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frame = LabelFrame(self.vent, text='Registrar nuevo artículo')
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frame.grid(row=0, column=0, columnspan=3, pady=20)
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# Entrada de Artículo
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Label(frame, text='Artículo :').grid(row=1, column=0)
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self.articulo = Entry(frame)
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self.articulo.grid(row=1, column=1)
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self.articulo.focus()
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# Entrada Cantidad
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Label(frame, text='Cantidad :').grid(row=2, column=0)
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self.cantidad = Entry(frame)
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self.cantidad.grid(row=2, column=1)
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# Boton agregar Articulo
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ttk.Button(frame, text='Añadir a Inventario', command=self.add_articulo).grid(row=3, columnspan=2, sticky=W+E)
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# Boton Borrar Articulo
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ttk.Button(text='Eliminar', command=self.del_articulo).grid(row=5, column=0, sticky=W+E)
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# Boton Actualizar Articulo
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ttk.Button(text='Editar', command=self.edit_articulo).grid(row=5, column=1, sticky=W+E)
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# Mensajes de Informacion
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self.info = Label(text='', fg='red')
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self.info.grid(row=3, column=0, columnspan=2, sticky=W+E)
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# Tabla
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self.tree = ttk.Treeview(height=10, columns=2)
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self.tree.grid(row=4, column=0, columnspan=2)
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self.tree.heading('#0', text='Artículo', anchor=CENTER)
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self.tree.heading('#1', text='Cantidad', anchor=CENTER)
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self.get_articulos()
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def consultar(self, query, parametros=()):
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with sqlite3.connect(self.db) as conn:
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cursor = conn.cursor()
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respuesta = cursor.execute(query, parametros)
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conn.commit()
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return respuesta
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def get_articulos(self):
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#Limpiando el Tree
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records = self.tree.get_children()
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for elemento in records:
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self.tree.delete(elemento)
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#consulta
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query = 'SELECT * FROM articulos ORDER BY id DESC'
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db_rows = self.consultar(query)
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for row in db_rows:
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self.tree.insert('', 0, text=row[1], values=row[2])
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def validacion(self):
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return len(self.articulo.get()) != 0 and len(self.cantidad.get()) != 0
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def add_articulo(self):
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if self.validacion():
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#print(self.articulo.get())
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#print(self.cantidad.get())
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query = 'INSERT INTO articulos VALUES(NULL, ?, ?)'
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parametros = (self.articulo.get(), self.cantidad.get())
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self.consultar(query, parametros)
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self.info['text'] = 'Artículo agregado {}'.format(self.articulo.get())
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self.articulo.delete(0, END)
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self.cantidad.delete(0, END)
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else:
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self.info['text'] = 'Articulo \"Y\" Cantidad requeridos'
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self.get_articulos()
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def del_articulo(self):
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self.info['text']=''
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try:
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self.tree.item(self.tree.selection())['text'][0]
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except IndexError as e:
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self.info['text'] = 'Selcciona el Artículo a Eliminar'
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return
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self.info['text'] = ''
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item_sel=self.tree.item(self.tree.selection())['text']
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query = 'DELETE FROM articulos WHERE nombre = ?'
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self.consultar(query, (item_sel, ))
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self.info['text'] = 'Artículo Eliminado: {}'.format(item_sel)
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self.get_articulos()
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def edit_articulo(self):
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self.info['text'] = ''
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try:
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self.tree.item(self.tree.selection())['text'][0]
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except IndexError as e:
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self.info['text'] = 'Selcciona el Artículo a Editar'
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return
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old_articulo = self.tree.item(self.tree.selection())['text']
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old_cantidad = self.tree.item(self.tree.selection())['values'][0]
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self.vent_edit = Toplevel()
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self.vent_edit.title = 'Editar Artículo'
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#Articulo Antiguo
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Label(self.vent_edit, text='Articulo Original :').grid(row=0, column=1)
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Entry(self.vent_edit, textvariable=StringVar(self.vent_edit, value=old_articulo), state='readonly').grid(row=0, column=2)
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#Nuevo Artículo
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Label(self.vent_edit, text='Nuevo Artículo :').grid(row=1, column=1)
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nuevo_art = Entry(self.vent_edit)
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nuevo_art.grid(row=1, column=2)
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#Cantidad Antigua
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Label(self.vent_edit, text='Cantidad Original :').grid(row=2, column=1)
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Entry(self.vent_edit, textvariable=StringVar(self.vent_edit, value=old_cantidad), state='readonly').grid(row=2, column=2)
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#Nueva Cantidad
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Label(self.vent_edit, text='Nueva Cantidad :').grid(row=3, column=1)
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nueva_cant = Entry(self.vent_edit)
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nueva_cant.grid(row=3, column=2)
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#Boton Actualizar
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Button(self.vent_edit, text='Actualizar', command=lambda: self.editar_art(nuevo_art.get(), nueva_cant.get(), old_articulo, old_cantidad)).grid(row=4,column=2, sticky=W)
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def editar_art(self, nuevo_art, nueva_cant, old_articulo, old_cantidad):
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query = 'UPDATE articulos SET nombre=?, cantidad=? WHERE nombre=? AND cantidad=?'
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parametros = (nuevo_art, nueva_cant, old_articulo, old_cantidad)
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self.consultar(query, parametros)
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self.vent_edit.destroy()
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self.info['text'] = 'Entrada Actualizada :{} '.format(nuevo_art)
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self.get_articulos()
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if __name__ == '__main__':
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ventana= Tk()
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prlpc = Producto(ventana)
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ventana.resizable(0,0)
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ventana.mainloop()
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