Groovy to find if project exists

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What could I use in a Scriptrunner behaviour to find out if a certain project id/key exists in my instance? How would I turn that into code (if comparing against a text custom field)?

[Lasse Langhorn · Accepted solution]

Hi,

If you have the project key like TEST in a custom field named with ID customfield_11111 then you use something like this below to check if project exists.

package dk.langhornweb

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.project.ProjectManager

// Get project key from custom field
def projectKey = getFieldById("customfield_11111")
if (projectKey) {
    def projectManager = ComponentAccessor.getComponent(ProjectManager)
    def project = projectManager.getProjectObjByKey(projectKey)
    if (project) {
        // Do something with project
    } else {
        // No project
    }
}

Hope this helps

Regards

Lasse Langhorn

[-]

I was able to reference your solution successfully

import com.atlassian.jira.bc.JiraServiceContext
import com.atlassian.jira.bc.JiraServiceContextImpl
import com.atlassian.jira.bc.project.ProjectService
import com.atlassian.jira.project.ProjectManager
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.jql.parser.JqlQueryParser
import com.atlassian.jira.bc.issue.search.SearchService

if(!underlyingIssue) {
  def TK = getFieldById(getFieldChanged())
  def String TKVal = TK.getValue()
  def projectManager = ComponentAccessor.getProjectManager()
  ProjectService projectService = ComponentAccessor.getComponent(ProjectService.class);
  JiraServiceContext jiraServiceContext = new   JiraServiceContextImpl(ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser())

  if(TKVal.isEmpty())
  {
    TK.clearError()
  } else {
   if( projectService.isValidProjectKey( jiraServiceContext, TKVal ) == true )
   {
   TK.clearError()
   } else if (projectManager.getProjectByCurrentKeyIgnoreCase(TKVal) != null) {
      TK.setError("Project Key already in use")
      } else{
          TK.setError("Project Key invalid")
        }
  }
}

 Many thanks @Lasse Langhorn !