Requests module for Sahana Eden 2.0

Background

Currently there are 2 parallel Requests systems in the REQ module:

• req_req
• req_need

req_req was the first system built, initially to support the Logistics functionality in Inv, via req_req_item, req_commit and req_commit_item

Subsequently this was extended to support:

• Requests for Skills, via req_req_skill & req_commit_skill & req_commit_person
• 'Simple' Requests (just a textbox of details)
• Planned to be extended to support Requests for Assets & Shelter, although that was never developed.

Whilst the Logistics usecase worked pretty well, the other usecases never really worked properly due to the fact that req_req required Requests to originate from a Site....this is why req_need was developed...to provide a simpler Requests system than req_req's simple mode, which could be flexibly extended to originate from Sites, Orgs or People. Could also be flexibly extended to support requests for Items, Skills, etc

Requirements

• REQ & INV should both be able to operate without the other
  • This is currently the case & shouldn't get broken by this restructure
• Enable support for future implementation of ​EDXL-RM

Proposal 1

• REQ should only have a single Requests system, for which the req_need model is more suitable.
• req_req should be stripped down to it's logistics core usecase & moved to inv_req
  • Remove types (so remove support for Simple, Skills, etc)
  • Similarly req_req_item/req_commit/req_commit_item/req_approver/req_req_tag/req_order_item/req_project_req should be moved to inv_req_item/inv_commit /inv_commit_item/inv_req_tag/inv_req_approver/inv_req_item_order/inv_req_project
  • Also move associated Controllers/Classes/Functions/View
  • Remove current req_skill/req_commit_person/req_commit_skill models
  • req_job moved to req_need_job

Proposal 2

=> req_availability (inc commit_status)
  <= inv_commit
  <= hrm_commit (orgs) / vol_commit (individuals)
  <= fin_commit (or budget_commit)
=> req_acquisition (inc transport_status)
  <= inv_send
  <= hrm_deploy / vol_deploy
  <= fin_payment (or budget_allocation)

Any of these could come from external sources (e.g. via EDXL-RM).

• These would not create a record for the external source, but just the response to it
  • e.g. an external availability request is to be processed into either a commit, or a simple "not available" response
  • e.g. an external acquisition request would be referenced as document in the inv_send, but not establish an internal req_acquisition record.
  • The internal req_aquisition entity would be to store outgoing requests only (if requesting to another entity in the same system then it would only be seen like this to the requesting entity).

SHARE

There are also some models which are just used by SHARE & should be moved to that template (as share_*):

• req_need_line
• req_need_response
• req_need_response_line
• req_need_response_organisation