Realm-js: Predicate expressions must compare a keypath and another keypath or a constant value

[cl1069573062]

class Message extends Realm.Object {}
Message.schema = {
name: "Message",
properties: {
id: "string",
messageId: "string",
text: "string",
time: "string",
type: "string"
}
};

getMessage(id) {
const messageId = id;
return realm.objects("Message").filtered("id=" + messageId);
}

if l use getMessage();
it will throw " Predicate expressions must compare a keypath and another keypath or a constant value" Exception

[kneth]

@cl1069573062 Any indication of what messageID is?

You are missing quotes around messageId i.e., filtered('id = "' + messageID + '"');

[bdash]

That'd probably be better written as filtered('id = $0', messageID) to avoid problems if the substituted value happens to contain double quote characters.

[cl1069573062]

@bdash thanks that's work

[kneth]

Cool. I'll close the issue.