nombre | Number names in R | Natural Language Processing library

I have a big problem when I want to make a view.

I am trying to edit with UpdateView a form after I have entered and saved the information. I send the parameters with AJAX from the view, however I get the error: "Object of type Form is not JSON serializable".

Attached are some related code snippets.

models.py

The app has:

• ListView listing player names from a DB table (only one column, so it is primary key)
• EditText to write the new name
• Button to update the name of player in the list

*there are more things, but i don´t want to make it more messy

I can click a name from the list and write a new name in the EditText. When you press the button that name is updated in the list.

Everything works correctly, but there is a problem. When I write a name that it is already in the list the app fails because primary keys cannot be repeated.

Is there some way to say "if EditText text already exists in the DB... then show a toast"

I already tried "if result of db.update is -1...then show a toast", but it doesn´t work.

This is the method in MainActivity:

Good afternoon. I am new to ruby and trying to build my first application. I am using sqlite database and rails 5.0. I have a model called Person that has the first name, last name and date of birth as attributes. On the page where I list people I want to add the age of the people and obtain an average of the ages of the people

My controller looks like this:

I need to set this:

I'm trying to sort an array of objects directly in the SQL query or with a Js function but the result is no sorted, or half of them are.

This is my SQL call:

I read data from a file that I want to fit into a structure. This structure contains an array of variable size. So I am using realloc to fill it on the fly. Unfortunately my program fails. Valgrind reports a pb with realloc:

I want to get/identify the object who has the Id "C003", for example, to print all data of that object.

I receive the id typed with cin and store in a string variable.

I've been reading many webpages and YouTube tutorials that use function find() or find_if(), but those examples use only numbers, so the third parameter is just a number, like 2.

In my case, I have a list with objects, and my conditional is this:

I have two entities with a ManyToMany relation between them. ProcessModel has a ManyToManyField of RouteModel and a reverse relalion 'processes' is created. I have define two ModelForms, but I cannot access the reverse ManyToMany relation 'processes' from the routes form. The view holding the route form don't display the processes field. How can I show that reverse ManyToMany field and save the information using the form. Here is my code