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require 'test_helper'
require 'action_controller/parameters'
class NestedParametersTest < ActiveSupport::TestCase
test "permitted nested parameters" do
params = ActionController::Parameters.new({
book: {
title: "Romeo and Juliet",
authors: [{
name: "William Shakespeare",
born: "1564-04-26"
}, {
name: "Christopher Marlowe"
}],
details: {
pages: 200,
genre: "Tragedy"
}
},
magazine: "Mjallo!"
})
permitted = params.permit book: [ :title, { authors: [ :name ] }, { details: :pages } ]
assert permitted.permitted?
assert_equal "Romeo and Juliet", permitted[:book][:title]
assert_equal "William Shakespeare", permitted[:book][:authors][0][:name]
assert_equal "Christopher Marlowe", permitted[:book][:authors][1][:name]
assert_equal 200, permitted[:book][:details][:pages]
assert_nil permitted[:book][:details][:genre]
assert_nil permitted[:book][:authors][1][:born]
assert_nil permitted[:magazine]
end
test "nested arrays with strings" do
params = ActionController::Parameters.new({
:book => {
:genres => ["Tragedy"]
}
})
permitted = params.permit :book => :genres
assert_equal ["Tragedy"], permitted[:book][:genres]
end
test "permit may specify symbols or strings" do
params = ActionController::Parameters.new({
book: {
title: "Romeo and Juliet",
author: "William Shakespeare"
},
magazine: "Shakespeare Today"
})
permitted = params.permit({ book: ["title", :author] }, "magazine")
assert_equal "Romeo and Juliet", permitted[:book][:title]
assert_equal "William Shakespeare", permitted[:book][:author]
assert_equal "Shakespeare Today", permitted[:magazine]
end
test "nested array with strings that should be hashes" do
params = ActionController::Parameters.new({
book: {
genres: ["Tragedy"]
}
})
permitted = params.permit book: { genres: :type }
assert_empty permitted[:book][:genres]
end
test "nested array with strings that should be hashes and additional values" do
params = ActionController::Parameters.new({
book: {
title: "Romeo and Juliet",
genres: ["Tragedy"]
}
})
permitted = params.permit book: [ :title, { genres: :type } ]
assert_equal "Romeo and Juliet", permitted[:book][:title]
assert_empty permitted[:book][:genres]
end
test "nested string that should be a hash" do
params = ActionController::Parameters.new({
book: {
genre: "Tragedy"
}
})
permitted = params.permit book: { genre: :type }
assert_nil permitted[:book][:genre]
end
test "fields_for_style_nested_params" do
params = ActionController::Parameters.new({
book: {
authors_attributes: {
:'0' => { name: 'William Shakespeare', age_of_death: '52' },
:'1' => { name: 'Unattributed Assistant' }
}
}
})
permitted = params.permit book: { authors_attributes: [ :name ] }
assert_not_nil permitted[:book][:authors_attributes]['0']
assert_not_nil permitted[:book][:authors_attributes]['1']
assert_nil permitted[:book][:authors_attributes]['0'][:age_of_death]
assert_equal 'William Shakespeare', permitted[:book][:authors_attributes]['0'][:name]
assert_equal 'Unattributed Assistant', permitted[:book][:authors_attributes]['1'][:name]
end
test "fields_for_style_nested_params with negative numbers" do
params = ActionController::Parameters.new({
book: {
authors_attributes: {
:'-1' => {name: 'William Shakespeare', age_of_death: '52'},
:'-2' => {name: 'Unattributed Assistant'}
}
}
})
permitted = params.permit book: {authors_attributes: [:name]}
assert_not_nil permitted[:book][:authors_attributes]['-1']
assert_not_nil permitted[:book][:authors_attributes]['-2']
assert_nil permitted[:book][:authors_attributes]['-1'][:age_of_death]
assert_equal 'William Shakespeare', permitted[:book][:authors_attributes]['-1'][:name]
assert_equal 'Unattributed Assistant', permitted[:book][:authors_attributes]['-2'][:name]
end
end
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