nanni | Nice Annotation Interface for text | Data Labeling library

I'm using JSON Generator https://next.json-generator.com to seed my MongoDB database. I'm finding trouble to generate a random set (from one to six) of colors out of the predefined group.

I've succeeded to generate all of the other property values but color. I need for the availableColors key to generate a random variable number of colors out of a predefined set of six: "blue", "brown", "green", "white", "yellow", "gray".

Here is the URL to the online generator where it is possible to real-time edit it: https://next.json-generator.com/E1g60a1pL

Here is the code:

I have a dashboard that shows results fetched from users and nannies model.

In my user.rb, I have

I'm trying to use php to delete an xml element but it doesn't work. I tried some different code but no one works. I would also like to use cookies to get element in the future. Can you suggest me what I have to do ? I'm not expert and for this I'm in difficulty.

Here the code:

I created table

im new to rails and it seems like a really easy problem, but i dont get it. So i want to extrakt a .txt file out of my database. I want to export the boolean data with "true" and "false" as "0" and "1". Here is my code:

I'm trying to output 3 text fields with these values:

• 100
• 200
• 300

But however I get duplicate output:

100,200,300 100,200,300 100,200,300

I have used array_unique function, but its not working.