I have been searching on how to return an integer value from controller to the gsp. I tried using this:
def test(){
def val = 1;
return val;
}
but it does not work. Please help.
Try
def test(){
def val = 1;
[val:val]
}
Add this code to your controller:
def test(){
def v = 10
render view:'test.gsp', model:[v:v]
}
Then, access the value from your test.gsp by "${v}"
Note that the render view is optional for test.gsp, i've written it only for demo purpose.. (i.e change the gsp filename).
Hope it helps.
The return statement is used to return values from services to controllers.
If you want to pass values from the controller to gsp, use:
[variableNameInGSP : valueToBeReturned]
Related
I'm trying to use the createCriteria in a grails application to return some rows from a DB. I'm not getting any results.
def query = {
ilike('fullName','%${params.term}%')
projections {
property('id')
property('fullName')
}
}
def plist = Patient.createCriteria().list(query)
def patientSelectList = []
plist.each {
def pMap = [:]
pMap.put("id", it[0])
pMap.put("label", it[1])
pMap.put("value", it[1])
patientSelectList.add(pMap)
}
the fields i'm looking for exist as the following snippet returns results but is very slow.
def patientList = Patient.getAll()
def patientSelectList = []
patientList.each { patient ->
if (patient.fullName.toLowerCase().contains(params.term.toLowerCase()) ) {
def pMap = [:]
pMap.put("id", patient.id)
pMap.put("label", patient.fullName)
patientSelectList.add(pMap)
}
}
return patientSelectList
thanks for anyhelp
I had my Db fields encryted with jasypt. Removing the encryption on the field I needed to query fixed the issue!
You're using a String rather than a GString in the ilike() parameter, so params.term is not being evaluated. To use a GString, use double-quotes instead.
ilike('fullName',"%${params.term}%")
Also make sure % is an appropriate wildcard character for your database (it probably is).
In the groovy Controller Code I call the function:
def wiki =
{
def currentNode = params.nodePath
def conceptName = nodeService.retrieveConceptName (currentNode);
render (template:'wiki', model:[conceptName : conceptName])
}
In the service class I define the function retrieveConceptName:
def retrieveConceptName(currentNode)
{
groovy.sql.Sql sql = new groovy.sql.Sql(dataSource);
def row= sql.firstRow(" SELECT cname FROM Person WHERE FULLNAME= ?",[currentNode]);
return row;
}
In my output(wiki template(gsp view)) I get flowerbrackets along with field header , How to get only value of column and not the flower braces or field header?
You haven't shown the GSP code that displays the row, but I guess it looks like either ${it} or ${row}. If so, replace it with either
${it.cname} or ${row.cname}
When using projection on the properties, the result is returned as the list with the elements in the same sequence as that defined in the projections block. At the same time the property names are missing from the list and that is really disadvantageous to the developer as the result would be passed along and the caller needs to know what value belongs to which property. Is there a way to return a map from the Criteria query with property name as the key to the value?
so, the following code:
def c = Trade.createCriteria()
def remicTrades = c.list {
projections {
property('title', 'title')
property('author.name', 'author')
}
def now = new Date()
between('publishedDate', now-365, now)
}
This returns:
[['book1', 'author1']['book2', 'author2']]
Instead I would like it to return:
[[book:'book1', author:'author1'][book:'book2', author:'author2']]
I know I can arrange this way after getting the result but I earnestly feel that the property alias should have been used by the criteria to return a list of map that mimics the result of the SQL query and not a bland list.
Duplicate: Grails queries with criteria: how to get back a map with column?
And the corresponding answer (and solution): https://stackoverflow.com/a/16409512/1263227
Use resultTransformer.
import org.hibernate.criterion.CriteriaSpecification
Trade.withCriteria {
resultTransformer(CriteriaSpecification.ALIAS_TO_ENTITY_MAP)
projections {
property('title', 'title')
property('author.name', 'author')
}
def now = new Date()
between('publishedDate', now-365, now)
}
Agree with your question reasoning, this really should be part of the core GORM solution. That said, here's my workaround;
def props = ['name','phone']
def query = Person.where {}.projections {
props.each{
property(it)
}
}
def people = query.list().collect{ row->
def cols = [:]
row.eachWithIndex{colVal, ind->
cols[props[ind]] = colVal
}
cols
}
println people // shows [['name':'John','phone':'5551212'],['name':'Magdalena','phone':'5552423']]
I've got a domain class which I want to, at run time, do a database call to populate a list of objects as a property. I have a tree with a 'headMember' property and that property is an object which has the following function:
def marriages = {
def marriages = Marriage.findAll("from Marriage as m where m.mainMember.name=:name", [name:name])
return [marriages:marriages]
}
in my GSP, I use ${tree?.headMember?.marriages} to access the 'headMember' property of the model which is passed to the view 'tree' from the following function in the relevant controller:
def show = {
def tree = Tree.get(params.id)
render(view:'show', model:[tree:tree])
}
when I view this in my browser, i get:
Member$_closure1#3708ab98
where I'd expect a list.
Any ideas what I'm doing wrong?
Cheers.
When you call marriages, you are calling a closure and this closure is returned. I think that you should rework it to be a method, something like that:
static transients = ['marriages'] // tell hibernate that marriages is not a persistent property
List<Marriages> getMarriages(){
return Marriage.findAll("from Marriage as m where m.mainMember.name=:name", [name:name])
}
This way, when you call ${tree?.headMember?.marriages} in your GSP, the getMarriages() method is called and list of marriages should be returned.
Is this possible to convert in createCriteria()?
SELECT * FROM node WHERE (node.type = 'act' AND nid NOT IN (SELECT nid FROM snbr_act_community)) LIMIT 10
I know there's a 'in' operator and here's what I have so far:
def c = VolunteerOpportunity.createCriteria()
def matchingActs = c.list {
node {
eq('type', 'act')
}
maxResults(10)
}
Just want to see if this is possible. Otherwise, I guess this is possible in HQL right?
thanks Sammyrulez for the code. got an idea from that. tested it but it didn't work. i fixed it and here's the final working code:
def ids = [14400 as long, 14401 as long]
def c = VolunteerOpportunity.createCriteria()
def matchingActs = c.list {
node {
eq('type', 'act')
not { 'in'(ids) }
}
maxResults(10)
}
now i know how to use 'not' operator. thanks a lot!
not tried it myself but looking at the Grails doc and hibernate api you create nodes on this builder map with the static methods found in the Restrictions class of the Hibernate Criteria API 1. So something like
def c = VolunteerOpportunity.createCriteria()
def matchingActs = c.list {
node {
not(in('propertyName', ['val1','val2']))
}
maxResults(10)
}
Since you chain the in method (that returns a Criterion) with the not method (that takes a Criterion as argument and returns a negated version)
this is the solution :
def resultat=EnteteImputationBudgetaire.createCriteria().get{
between("dateDebutPeriode", dateDebut, dateFin)
and{ eq 'natureImputationBudgetaire','FONCTIONNEMENT' }
maxResults(1)
}
def resultat2=ParametragePlanBudgetaire.createCriteria().list() {
like('composantBudgetaire','6%')
if(resultat?.details) {
not {
'in'('composantBudgetaire',resultat?.details?.imputationBudgetaire)
}
}
}
According to Grails documentation about creating criteria here, you can use something like this:
not {'in'("age",[18..65])}
In this example, you have a property named "age" and you want to get rows that are NOT between 18 and 65. Of course, the [18..65] part can be substituted with any list of values or range you need.
Just remembering: in this case you don't have to use parenthesis and you can use inList, for example:
not { inList 'age',[18..65] }