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ankane avatar ankane commented on May 6, 2024

This should work if names are unique.

EmployeeDepartment.joins(:states).group("employee_departments.name").count

Make sure

class EmployeeDepartment
  has_many :tickets
  has_many :states, through: :tickets
end

An alternative approach is:

EmployeeDepartment.all.map{|dept| dept.states.count }

The examples use Google Charts, which is why the theme is different.

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mostafahussein avatar mostafahussein commented on May 6, 2024

Tickets.rb
belongs_to :employee_department
belongs_to :state

Employee_department.rb
has_many :tickets

State.rb
has_many :tickets

i will add has_many states through tickets into my employee_department.rb , is there anything else need to be modified ?

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ankane avatar ankane commented on May 6, 2024

No, that should be it. Try out the two examples above to see if they work.

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mostafahussein avatar mostafahussein commented on May 6, 2024

I tried one of them ,the pie chart is showing the number of tickets for each department

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ankane avatar ankane commented on May 6, 2024

Sounds like you want the number of distinct states. Try the second solution.

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