dynamic loop in a hash Ruby on Rails

Question

I'm trying to create a dynamic loop within the hash @data below and can't really seem to figure it out. I'm creating an annotatedtimeline-for-rails using the google api from here https://github.com/mcommons/annotatedtimeline-for-rails.

The array within the hash @data has to be dynamic i:e the day number has to be generated by a loop and the name of the product and number are dynamic as well. I'll try to give an example in the loop below

@numdeployed is a number and comes from a table in the db i should be generated by the loop

@data{
    begin loop
    i.day.ago.to_date => { :foo=>@numdeployed, :bar=>@numdeployed, :barbaz=>@numdeployed, :foobar=>@numdeployed },
    end loop
}

The Original Data Hash looks like this

@data = {
    1.day.ago.to_date => { :foo=>10, :bar=>40, :barbaz=>10, :foobar=>40 },
    2.day.ago.to_date => { :foo=>10, :bar=>40, :barbaz=>10,:foobar=>40 },
    3.day.ago.to_date => { :foo=>10, :bar=>40, :barbaz=>10,:foobar=>40 },
    4.day.ago.to_date => { :foo=>10, :bar=>40, :barbaz=>10,:foobar=>40 },
    5.day.ago.to_date => { :foo=>10, :bar=>40, :barbaz=>10,:foobar=>40 }
}

hope someone can help. Thanks

Noah Sussman · Accepted Answer · 2018-08-23 20:57:23Z

3

Are you looking for something like this?

@data = Hash[
    n.times.map do |i|
        [ (i + 1).day.ago.to_date,  { :foo => 10, :bar => 40, :barbaz => 10, :foobar => 40 } ]
    end
]

The n is however many pairs you want in your @data.

edited Aug 23, 2018 at 20:57

Noah Sussman

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answered Aug 5, 2012 at 0:56

mu is too short

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