Access show cost by in chargeback report for restricted user

[lpichler]

Needed backend PR:

• Fix RBAC for User and enable tagging for Tenants manageiq#17061

After/Before

RBAC setup in after GIF

see owner

before

after

Technically

1. in this PR there is moving chargeback related code to one method and then usage of this method and executing when your click on filter tab:

Move chargeback code to the method
and then move this method to the building screen
it will refresh `@edit[:cb_users]` and
`@edit[:cb_tenant]`  when tab filter is pressed.

2. Allowing listing of users and tenants for restricted user, so there is no case of admin and restricted users, so this old code is transformed to

  if admin_user?		
      @edit[:cb_users] = User.all.each_with_object({}) { |u, h| h[u.userid] = u.name }		
      @edit[:cb_tenant] = Tenant.all.each_with_object({}) { |t, h| h[t.id] = t.name }		
    else		
      @edit[:new][:cb_show_typ] = "owner"		
      @edit[:new][:cb_owner_id] = session[:userid]		
      @edit[:cb_owner_name] = current_user.name		
    end

to

 @edit[:cb_users] = User.all.each_with_object({}) { |u, h| h[u.userid] = u.name }		
  @edit[:cb_tenant] = Tenant.all.each_with_object({}) { |t, h| h[t.id] = t.name }		

3. wrap listing of users and tenants by RBAC call

Links

• Fix RBAC for User and enable tagging for Tenants manageiq#17061 - backend PR - merging without backend will not break anything but it will cause leaking of lists users and groups for restricted user in report definition.
• https://bugzilla.redhat.com/show_bug.cgi?id=1544875

@miq-bot assign @mzazrivec
cc @gtanzillo
@miq-bot add_label bug, chargeback, graprindashvili/yes

[miq-bot]

@lpichler Cannot apply the following labels because they are not recognized: chargeback, graprindashvili/yes

[lpichler]

@miq-bot add_label gaprindashvili/yes

[miq-bot]

Checked commit lpichler@29d2137 with ruby 2.3.3, rubocop 0.52.0, haml-lint 0.20.0, and yamllint 1.10.0
3 files checked, 0 offenses detected
Everything looks fine. 👍

[lpichler]

@mzazrivec backend PR has been merged

[lpichler]

@miq-bot remove_label 'pending core'

[miq-bot]

@lpichler Cannot remove the following label because they are not recognized: 'pending core'

[simaishi]

Gaprindashvili backport details:

$ git log -1
commit f26b6ca8c9c15168cd7e530f995e384b49bad29e
Author: Milan Zázrivec <[email protected]>
Date:   Thu Mar 8 10:22:26 2018 +0100

    Merge pull request #3494 from lpichler/add_rbac_to_report_definition_on_users_and_tenants
    
    Access show cost by in chargeback report for restricted user
    (cherry picked from commit e81f74e044f121f39b6a6786baa6445e10cba2e0)
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1553776