Groovy: Update a custom select Value using a “Scriptrunner for Jira”

[meddows]

I have been reading through the forum but can't find anything that works for my scenario. 

I need to update a custom select value. 

I have been able to update a custom field without issue and I have the id of the select option I wish to set. I just need the method to update the select please. 

//Required Imports
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.ComponentManager
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.issue.fields.CustomField
import com.atlassian.jira.issue.ModifiedValue
import com.atlassian.jira.issue.util.DefaultIssueChangeHolder

//Identify Issue
def im = ComponentAccessor.getIssueManager()
def issue = im.getIssueObject("TC-23")
def cfm = ComponentAccessor.getCustomFieldManager()

//Set Change Holder
def changeHolder = new DefaultIssueChangeHolder();

//Set Value of Manufactuer
def cf1 = cfm.getCustomFieldObjects(issue).find {it.name == "Manufacturer:"}
cf1.updateValue(null, issue, new ModifiedValue(issue.getCustomFieldValue(cf1), 'TEST_VALUE'), changeHolder);

//Set Complexity value to Select
def cf = cfm.getCustomFieldObjects(issue).find {it.name == "Complexity"}

I have the select config with this code.

def fieldConfig = cf.getRelevantConfig(issue)
def option = ComponentAccessor.optionsManager.getOptions(fieldConfig)?.find {it.toString() == "Select"}

option.properties.each { prop, val ->
    log.warn(prop.toString() + " = " + val)
}

log.warn(option.optionId)  

Thanks!

[meddows · Accepted solution]

I just worked it out. I actually pass the option property which I set in: 

def option = ComponentAccessor.optionsManager.getOptions(fieldConfig)?.find {it.toString() == "Select"}

So I pass the option.

cf.updateValue(null, issue, new ModifiedValue(issue.getCustomFieldValue(cf), option), changeHolder);