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PODependency Injection In Grails Domain Controllers
 

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    <p>I'm trying to create a a custom constraint. I've put the logic in a service:</p> <pre><code>class RegExpManagerService { boolean transactional = false def messageSource def lookupRegexp(regExpression,Locale locale) { def pattern = messageSource.getMessage( regExpression,null,locale ) return pattern } def testRegexp(regExpression,text,Locale locale) { return text ==~ lookupRegexp(regExpression,locale) } } </code></pre> <p>and tried to inject it in my domain controller:</p> <pre><code>class Tag extends IbidemBaseDomain { def regExpManagerService static hasMany=[itemTags:ItemTag] static mapping = { itemTags fetch:"join" } //Long id Date dateCreated Date lastUpdated String tag // Relation Tagtype tagtype // Relation Customer customer // Relation Person updatedByPerson // Relation Person createdByPerson static constraints = { dateCreated(nullable: true) lastUpdated(nullable: true) tag(blank: false,validator: {val,obj -&gt; regExpManagerService.testRegexp(obj.tagtype.regexpression,val,local) }) tagtype(nullable: true) customer(nullable: true) updatedByPerson(nullable: true) createdByPerson(nullable: true) } String toString() { return "${tag}" } } </code></pre> <p>When the constraint gets executed I get this error:</p> <pre><code>2009-08-24 18:50:53,562 [http-8080-1] ERROR errors.GrailsExceptionResolver - groovy.lang.MissingPropertyException: No such property: regExpManagerService for class: org.maflt.ibidem.Tag org.codehaus.groovy.runtime.InvokerInvocationException: groovy.lang.MissingPropertyException: No such property: regExpManagerService for class: org.maflt.ibidem.Tag </code></pre>
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