caxlsx / axlsx Pivot Table on same sheet - ruby-on-rails

Question

I'm trying to do the same as that question
caxlsx / axlsx Pivot Table on separate sheet
but in the same sheet.
When i do:
summary_sheet.add_pivot_table 'A91:E140', 'A53:O68' do |pivot_table|
pivot_table.rows = ['Activity']
pivot_table.columns = ['Project']
end
And then go to inspect what happened, i find that the source data on the generated file have $'DPCache_Data Sheet'.$A$1:$O$16 while i been waiting $Summary.$A53$O68
And yes, don't return what i want, giving pivot_table.data_sheet to itself with something like
pivot_table.data_sheet = summary_sheet
or this
pivot_table.data_sheet = pivot_table
not works anyway.
UPDATE FOR #kevinluo201
Your reply do that
Thank you but not solves.
My file starts with
wb = xlsx_package.workbook
Doing with
wb = Axlsx::Package.new.workbook
Return an empty file

Answer 1

:add_pivot_table can be used as add_pivot_table(:pivot_table_position, :data_source)
If you want to create a worksheet called "Summary" and insert data and then create a pivot table, here my version I modified a little bit from the https://github.com/caxlsx/caxlsx/blob/master/examples/pivot_table_example.md
require 'caxlsx'
p = Axlsx::Package.new
wb = p.workbook
wb.add_worksheet(name: 'Summary') do |sheet|
sheet.add_row ['Activity', 'Project']
# Generate some data here in the range of 'A53:O68'
# ...
# ...
# ...
# within the same worksheet, call :add_pivot_table
sheet.add_pivot_table '$G$5', 'A53:O68', sort_on_headers: ['Activities'] do |pivot_table|
pivot_table.rows = ['Activities]
pivot_table.columns = ['Project']
end
end
p.serialize 'pivot_table_example.xlsx'
Open the generated pivot_table_example.xlsx and go to G5 cell, you'll see the pivot table there with the data source from 'A53:O68'.