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ViewsTypeScript Data structure for indexed actions table
I have a series of roles with ascending permissions. I also have series of issue states. I expect both of these to be represented as TypeScript enums.
I wish to provide a series of available actions, for different roles, for issues in different states:
I have a couple of related challenges.
- I wish to have a data structure where the role/issue-state are indexed by TS enums
- I wish to be able to store data in the structure in a legible manner (for easy review by a domain expert), like below
actions[engineer][newReqest] = ["Claim"]
actions[engineer][liveRequest] = ["Submit for review"]
- When determining the actions for the current role ("Manager") I should be able to retrieve the inferred actions for the lower roles too ("Engineer" and "Team Lead")
Can anybody point me to the TypeScript object type that best suits the above scenario?
·
Juan Pablo Isaza
1 answers
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I've attempted a solution in a playground. I supports the domain-expert-legible assignment, but I have some remaining TS errors. It could probably be improved...
enum Roles {
Engineer,
TeamLeader,
Manager
}
enum IssueStates {
New,
Live,
Closed
}
const actions = []
actions[IssueStates.New] = []
actions[IssueStates.Live] = []
actions[IssueStates.Closed] = []
actions[IssueStates.New][Roles.Engineer] = ["Claim"]
actions[IssueStates.Live][Roles.Engineer] = ["Submit"]
actions[IssueStates.Live][Roles.TeamLeader] = ["Accept", "Reject"]
actions[IssueStates.Closed][Roles.Manager] = ["ReOpen"]
const actionsFor = (tblActions: any, state: IssueStates, role: Roles): Array<String> => {
const forState = tblActions[state]
const actions = forState.filter((element: any, index: number) => index <= role)
return actions.flat(2) || []
}
console.log("Team leader for live issue", actionsFor(actions, IssueStates.Live, Roles.TeamLeader))
console.log("Team leader for closed issue", actionsFor(actions, IssueStates.Closed, Roles.TeamLeader))
console.log("Manager for closed issue", actionsFor(actions, IssueStates.Closed, Roles.Manager))
let summary = ""
for(let state in IssueStates) {
if(!isNaN(+state)) {
for(let role in Roles) {
if(!isNaN(+role)) {
summary += state + ", " + role + ", " + actionsFor(actions, state, role) + "\n"
}
}
}
}
console.log("Summary", "\n", summary)
·
Juan Pablo Isaza
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