I am trying to create a chart for a Pack database, in which the x axis will be each day, and the y axis will be a count of the :amount
field in the Pack database. I am currently using the following code:
= line_chart @packs.pluck("amount").group(:created_at).count
I am getting this error:
undefined method `group' for [2, 7, 0, 0]:Array
How do I display a chart using Chartkick, in which it counts or shows the :amount record for that day?
= line_chart @packs.group(:created_at).count('amount')
要么
= line_chart @packs.group(:created_at).sum('amount')
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