Hi, All
I was wondering if somebody could suggest a better way to do it. I got it working but it's a bit dirty and returns too much extra fluff.
I'm trying to do a recursive search on an a collection of Objects.
A better way to illustrate it is an Org Chart.
Lets say I have Employee and ManagedByEmployee Objects
Employee hold user id , name, address, etc.... also: has_many :managed_by_employees, :dependent => :destroy
ManagedByEmpoyee holds 3 attributes: id, employee_id and managed_by_employee_id also: belongs_to :employee belongs_to :managed_by_employee, :class_name => "Employee", :foreign_key => "managed_by_employee_id"
This allows me to do any searches 1 level deep. I can find who this particular employee manages and who he is managed by. That trivial.
What I want to do is a drill down search.
Let's say I do: @emps = find_all_by_managed_by_employee_id(3) This would return me all of the empployees that are managed by employee #3, lets say I want to go through that list and check all of the employees and see who they manage, and so on and so forth - until I reach the bottom, where I find employee that don't manage anyone.
Then I want a similar function that goes in the other direction.
I wrote a model methods that handle that = but there are 2 problems with them: 1) They return too many duplicate records - and I have to clean them up at the end. 2) I return all of the employees that employee # 3 manages but, I can't tell how they relate to employee 3 (well I can go through the chain again and figure it out) But there's got to be a btter way to do it then running more sql statement.
Below are my model functions
def self.find_employees_that_i_manage(employee, employees_array) arr = employees_array arr += @managed_employees = find_all_by_managed_by_employee_id(employee) unless @managed_employees.empty? @managed_employees.each do |s| arr += find_employees_that_i_manage(s.employee_id, arr) end end arr |= arr end
def self.find_employees_that_manage_me(employee, employees_array) arr = employees_array arr += @managed_by_employees = find_all_by_employee_id(employee) unless @managed_by_employees.empty? @managed_by_employees.each do |s| arr += find_employees_that_manage_me(s.managed_by_employee_id, arr) end end arr |= arr end
Here is how I call them from controller: @manages_employees = managedByemployee.find_employees_that_i_manage(params[:id], p=) @managed_by_employees = managedByemployee.find_employees_that_manage_me(params[:id], p=)
Anyone has any suggestions?
