I have this json object:
op = [{"id":7,"d_set_id":1,"option_value_id":5,"product_id":3,"model":"1300","option_type":"Plunger Diameter","option":"5.0 inch Plunger Diameter","product":"Packing","route":"part_option_values","reqParams":null,"restangularized":true,"fromServer":true,"parentResource":{"route":"parts","parentResource":null,"id":"29"},"restangularCollection":false},{"id":9,"d_set_id":5,"option_value_id":11,"product_id":3,"model":"1300","option_type":"main drum diameter","option":"1.0 main drum diameter","product":"Packing","route":"part_option_values","reqParams":null,"restangularized":true,"fromServer":true,"parentResource":{"route":"parts","parentResource":null,"id":"29"},"restangularCollection":false}]
addItems: (op) ->
variant = {
product_id: "undefined"
model: "undefined"
options: []
product: "undefinded"
option_value_ids: []
quantity: 1
}
op.forEach (obj,i) ->
variant.product_id = obj.product_id
variant.model = obj.model
variant.options.push obj.option
variant.product = obj.product
variant.option_value_ids.push obj.option_value_id
variant.options = variant.options.join(', ')
items.push variant
items = [{"product_id":3,"model":"1300","options":"5.0 inch Plunger Diameter, 1.0 main drum diameter","product":"Packing","option_value_ids":[5,11],"quantity":1},{"product_id":3,"model":"1300","options":"5.0 inch Plunger Diameter, 1.0 main drum diameter","product":"Packing","option_value_ids":[5,11],"quantity":1}]
Yes! This can all be done succinctly with three concepts. Maps, destructuring and Object Shorthand notation (all three available in ES2015/6 as well as coffeescript)
options = []
ids = []
# We need to aggregate id's and options first
for {option_value_id, option} in op
ids.push option_value_id
options.push option
# Map through to the new Object
items = op.map ({ product_id, model, product}) ->
{
product_id
model
options: options
product
option_value_ids: ids
quantity: 1
}
Array.map will take an array and transform each element (in this case a subset of the bigger object) and return a new Array. We will destructure the incoming object in the arguments and then shorthand them back into an object format.