Thanks for tracing out this 
blackode
blackode
Glad that you mentioned put_in I am expecting that if we show some thing they can dig more deepper. So I just mentioned only get_in in purpose.
Thanks for the feeds that really helpful for the people.
chrismccord
Creator of Phoenix
I love to see folks helping teach others in the community, but this post is ripped directly out of my book, in many cases word-for-word and line-for-line code wise. I would appreciate if you reworked your post as original content – which draws inspirations from what you learned in my book, rather than a copy of its contents 
If you’re unable to do so, please remove it.
blackode
You stood inspiration for writing that.
I am sorry to copy few sentences. I really apologize you for that. I thought that would add some extra attraction for the readers. Anyway I will change every line I used from your book. I will keep it more what I understood after reading the book.
AstonJ
As a general rule you need to obtain permission from the authors of copyrighted work. Small snippets can ‘sometimes’ be included depending on their context but always with a credit to the source and even then sparingly (don’t do this for large excerpts or numerous instances, as that can be classed as plagiarism) if in doubt it’s best to avoid reproduction of copyrighted content altogether.
Also I would like to comment that Chris’s response was very gracious, others may not have been quite so diplomatic in their response. Please keep this in mind and if you have done similar previously please amend those instances as well - book authors and content creators spend a lot of time writing and preparing content and it can be very disheartening when others reproduce material without permission (particularly when they pass it off as their own work).
Like Chris said it’s great that people want to help others learn… just please make sure it’s your own content
blackode
I totally changed the entire article giving credits and removing stuff. That is really bad from my side.
blackode
I totally changed and removed every thing that is used from the book. and giving credits. Really my bad. Thank you for being so kind.
AstonJ
I haven’t read the book myself yet (it’s on my Kindle ready!) but just to comment on this:
Tribute:
Examples are used from the book. I really recommend this Meta Programming. You can buy here.
Are these copied from the book? If so you should create your own examples to demonstrate the same point.
blackode
jackalcooper
I’d like to recommend one tip: to update a map with a keyword list safely and exhaustively
https://github.com/elixir-ecto/ecto/blob/v2.0.6/lib/ecto.ex#L551