Run/Execute a query in gsp/view in Grails - grails

Question

Image controller has a function
def scaled = {
log.debug("SCALED IMAGE " + params)
response.setContentType('image/jpeg')
response.setHeader('Cache-control', 'no-cache')
def userId = session.selectedUser.id
if(params.userId){
userId = params.userId
}
if(params?.id != null && !(params?.id.empty)){
params.maxWidth?: 20.00
params.maxHeight?: 20.00
response.outputStream << imageProxyService.loadImage(params.id, securityService.passwordEncoder(userId.toString()),params.maxWidth, params.maxHeight)
}
}
and profile photo's filename are stored in user table.
User has many status and i want to load user's profile photos depending on the statuses displayed. My status gsp looks like this:
<g:each in="${statusList}" status="i" var="status" status="i">
<tr class="${(i % 2) == 0 ? 'odd' : 'even'}">
<tr><td><img id="profile_photo" src="${createLink(controller:'image', action:'profilePhoto', id:status.photo)}" alt="" title="" />
</td></tr>
</tr>
</g:each>
query I used in status controller:
def alllist = {
log.debug("BEGIN IWI PROFILE")
def statusList = []
def sql = new Sql(dataSource);
def statusQuery = """SELECT c.id, c.status_message, c.status_type as profile, se.id, se.photo FROM user_account se, status c
WHERE
c.user_account_id = se.id
GROUP BY se.id, c.id, c.status_message, c.status_type, se.photo"""
def result = sql.rows(statusQuery);
def userQuery = """not sure """
if (result){
log.debug("GOT SOME RESULTS IN PERSONAL user" + result)
result.each() { status ->
def userResult = sql.firstRow(userQuery, [status.id])
if (userResult){
status['userId'] = userResult.id
} else {
status['userId'] = ""
}
statusList += status
}
}
render(template: "alllist", model: [statusList: statusList])
Please Note: This way I am getting all the photos all right but photos display only for the session user.
<img id="profile_photo" src="/myApp/image/profilePhoto/9edd692580d148c791c6c2aa3510605a95ba6de6.jpg" alt="" title=""/>

Answer 1

I would create a TagLib. How you actually render the photo depends on what is stored in the UserAccount.photo field. I'll assume it's an absolute URL to an image.
class UserTagLib {
def photo = {attrs ->
UserAccount u = attrs.user
out << "<img src=${u.photo}/>"
}
}
You would use it in your GSP like:
<user:photo user="${status.userAccount}"/>
..assuming you are looping over a list of Status objects in a variable called status

Answer 2

You can use this one:
<img src="http://applicationUrl/images/${u.photo}" />
or
<img src="${createLink(dir:'images',file: u.photo}" />
they can be used but as create link is deprecated now, I recommend using:
Resource for the same
<img src="${resource(dir: 'images', file: 'file.jpg')}"/>
More information can be found at:
http://grails.org/doc/2.2.1/ref/Tags/resource.html
about the resources