Linking pull requests to the workitems from the TFS database - sql-server

Question

We use custom queries (against TFS databases: Tfs_DefaultCollection and Tfs_Warehouse) to check if all changesets have a workitem linked to it. We use the FactWorkItemChangeset table from the Tfs_Warehouse database.
Currently we are migrating to TFS Git and we want to update our custom queries to check if all the pull requests have a workitem linked to it.
For example:
Git pull request and its workitem
We don't know where in the Tfs_Warehouse or in the Tfs_Defaultcollection database the pull request is linked to the workitem. Does anyone know where this link is stored?

Answer 1

Cannot find the related table, however you can use the REST API to check if all the pull requests have a workitem linked to it. Please see Get Pull Requests By Project and Pull Request Work Items - List for details.
For example, below PowerShell script will retrieve all the Pull Requests from a specific project and list the linked work items for each of them, also output the Pull Requests which have no linked work items to a *.csv file ("D:\temp\1030.csv" in below sample).
Param(
[string]$collectionurl = "http://172.17.16.163:8080/tfs/DefaultCollection",
[string]$project = "GitTest",
[string]$user = "Domain\user",
[string]$token = "password"
)
# Base64-encodes the Personal Access Token (PAT) appropriately
$base64AuthInfo = [Convert]::ToBase64String([Text.Encoding]::ASCII.GetBytes(("{0}:{1}" -f $user,$token)))
#Get pull request list for a specific project
$prsurl = "$collectionurl/$project/_apis/git/pullrequests?api-version=2.0"
$prs = (Invoke-RestMethod -Uri $prsurl -Method Get -Headers #{Authorization=("Basic {0}" -f $base64AuthInfo)})
$prurls = $prs.value.url
#Get the associated work items to PRs
Clear-Host
foreach ($prurl in $prurls)
{
$baseurl = "$prurl/workitems"
$prwis = Invoke-RestMethod -Uri $baseurl -Method Get -Headers #{Authorization=("Basic {0}" -f $base64AuthInfo)}
write-host "Pull Reuquest:" $prurl
write-host "Count of Associated Work Items:"$prwis.count
foreach ($prwi in $prwis.value )
{
Write-Host "Associated workitem:"$prwi.id - $prwi.url
}
write-host `n
if ($prwis.count -lt 1)
{
#Write-host $prurl
# Output the Pull Requests which have no work items associated:
$prurl | Add-Content "D:\temp\1030.csv"
}
}

Answer 2

We finally found the link in de Tfs_DefaultCollection.WorkItemFiles! For example: select *
from [dbo].[WorkItemFiles]
where FilePath = 'vstfs:///Git/PullRequestId/4f39e226-6f44-4e56-a216-f45969d8147d%2fab3368e0-56ef-468f-8e14-43065c433a21%2f2619'
This yields this result:
ID 427787
FilePath vstfs:///Git/PullRequestId/4f39e226-6f44-4e56-a216-f45969d8147d%2fab3368e0-56ef-468f-8e14-43065c433a21%2f2619
The ID column contains the workitem id and the FilePath 2 hashes (separated by '%ef') and finally the pull request id. In this example workitem 427787 is linked to pull request 2619.