|Related to : Rails Concerns questions|
|Rails/ActiveRecord query for quiz questions that have not been answered yet|
I'm assuming the original queries are incorrect, since you are using
QuizQuestionResponse ids as a parameter for QuizQuestion id.
correct_question_ids = QuizQuestionResponse.where(correct: true,
user_id: current_user.id, lesson_id:
questions = QuizQuestion.where(lesson_id:
|Android Pre-Existing/External Database Security Concerns|
You could encrypt the database if you wanted to, but then you would
need to include a key in your program to decrypt it. Here is one easy
to use product SQLCipher.
At the end of the day, the best you can do is make it harder for the
DB to copied off the phone and read.
|Questions about XML in Swagger 2.0|
When it comes to APIs returning both XMLs and JSON, Swagger assumes
that they share a common structure that's basically interchangeable.
That is, if you have this JSON:
The XML would look like:
As you can see, there are still slight differences. The
|Some java generics questions|
In general, erasure is not just a simple textual replacement. These
different kinds of types have specific semantic meaning. Of course a
language could do anything, but would the vast consequences be
actually good? In general, things are disallowed because the
consequences are counterproductive.
Q1. In the below code i get the error "Name clash: The method
equals(T) of type Node has the same e
|Codio Beginner Questions|
Yes, each project is independed and have his own space, all software
installed in one box is not available in another. but you can clone a
project with a box, this mean everything will be cloned including
software and settings.
It is not full control for now, you do not have root rights and have
to use boxparts for installing software.
Codio is not a hosting platform, and custom domains are not s