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POGrails/Gorn flush messages
 

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    <p>My save method in controller:</p> <pre><code>def save = { def userInstance = new User(params) boolean captcha = jcaptchaService.validateResponse("image", session.id, params.response) if ( (captcha) &amp;&amp; (userInstance.save(flush: true))) { flash.message = "${message(code: 'default.created.message', args: [message(code: 'user.label', default: 'User'), userInstance.id])}" redirect(url:'http://localhost:8080/TrafficManFinal/index.gsp?page=registThx') } else { if (captcha == false) flash.message2 = "Wrong Captcha!" render(view: "create", model: [userInstance: userInstance]) } } </code></pre> <p>My User/create.gsp view</p> <pre><code> &lt;tr class="prop"&gt; &lt;td valign="top" class="name"&gt; &lt;label for="secretAnswer"&gt;&lt;g:message code="user.secretAnswer.label" default="Secret Answer" /&gt;&lt;/label&gt; &lt;/td&gt; &lt;td valign="top" class="value ${hasErrors(bean: userInstance, field: 'secretAnswer', 'errors')}"&gt; &lt;g:textField name="secretAnswer" value="${userInstance?.secretAnswer}" /&gt; &lt;g:form name="challenge" action="image"&gt; &lt;jcaptcha:jpeg name="image" /&gt;&lt;br&gt; &lt;br&gt; &lt;g:textField name="response" value="" /&gt;&lt;br&gt; &lt;br&gt; &lt;/g:form&gt; &lt;/td&gt; &lt;/tr &gt; </code></pre> <p>The Service:</p> <pre><code>import com.octo.captcha.service.CaptchaService; import com.sun.image.codec.jpeg.JPEGCodec; import com.sun.image.codec.jpeg.JPEGImageEncoder; import java.awt.image.BufferedImage; import java.io.ByteArrayOutputStream; import javax.sound.sampled.AudioFileFormat; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; /** * Provides access to the captchas as well as provides some util * type methods to convert captchas to usable data. * * @author LD &lt;ld@ldaley.com&gt; */ class JcaptchaService { /** * Used to access the captchas defined as part of the app config. */ def grailsApplication /** * Retrieves a captcha by name. * * @param captchaName The 'key' of the captcha defined in config. * @throws IllegalArgumentException If captchaName is null. * @throws IllegalStateException If there is no captcha by that name. * @returns The captcha service keyed by 'captchaName' */ CaptchaService getCaptchaService(String captchaName) { if (captchaName == null) throw IllegalArgumentException("'captchaName' cannot be null") def c = grailsApplication.config.jcaptchas[captchaName] if (c == null) throw new IllegalStateException("There is no jcaptcha defined with name '${captchaName}'") c } /** * Used to verify the response to a challenge. * * @param captchaName The key of the captcha * @param id The identifier used when retrieving the challenge (often session.id) * @param response What the user 'entered' to meet the challenge * @return True if the response meets the challenge * @see getCaptchaService() */ boolean validateResponse(captchaName, id, response) { def c = getCaptchaService(captchaName) c.validateResponseForID(id, response) } /** * Utility routine to turn an image challenge into a JPEG stream. * * @param challenge The image data * @return A raw bunch of bytes which come together to be a JPEG. */ byte[] challengeAsJpeg(BufferedImage challenge) { def jpegOutputStream = new ByteArrayOutputStream() def jpegEncoder = JPEGCodec.createJPEGEncoder(jpegOutputStream) jpegEncoder.encode(challenge) jpegOutputStream.toByteArray() } /** * Utility routine to turn a sound challenge into a WAV stream. * * @param challenge The sound data * @return A raw bunch of bytes which come together to be a WAV. */ byte[] challengeAsWav(AudioInputStream challenge) { ByteArrayOutputStream soundOutputStream = new ByteArrayOutputStream() AudioSystem.write(challenge, AudioFileFormat.Type.WAVE, soundOutputStream) soundOutputStream.flush() soundOutputStream.close() soundOutputStream.toByteArray() } } </code></pre> <p>The way it is implemented, only if i introduce the right captch once, i can see the flush.messages comming from the constraints. i want a way to merge the two flush messages or display the two deferent flushes at same time.</p>
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    1. COwhat are you trying to do with the captcha, why are you saving it?
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    2. COinstead of trying to save the captcha lol, i think i should use that service inside the User/Save .gsp file from scafalding. is that right=? i make a textfield in User/Create which wont be storing any information. im using the default scafolding thing
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