I always use methods to insert, update and remove. This is the way my code look just now:
Client side
Template.createClient.events({
'submit form': function(event, tmpl) {
e.preventDefault();
var client = {
name: event.target.name.value,
// .... more fields
}
var validatedData = Clients.validate(client);
if (validatedData.errors) {
// Display validation errors
return;
}
Meteor.call('createClient', validatedData.client, function(error) {
if (error)
// Display error
});
}
});
Client and server side:
Clients = new Mongo.Collection("clients");
Clients.validate = function(client) {
// ---- Clean data ----
client.name = _.str.trim(client.name);
// .... more fields clean
// ---- Validate data ---
var errors = [];
if (!client.name)
errors.push("The name is required.");
// .... more fields validation
// Return and object with errors and cleaned data
return { errors: _.isEmpty(errors) ? undefined : errors, client: client };
}
Meteor.methods({
'createClient': function (client) {
// --- Validate user permisions ---
// If server, validate data again
if (Meteor.isServer) {
var validatedData = Clients.validate(client);
if (validatedData.errors)
// There is no need to send a detailed error, because data was validated on client before
throw new Meteor.Error(500, "Invalid client.");
client = validatedData.client;
}
check(client, {
name: String,
// .... more fields
});
return Clients.insert(client);
}
});
Meteor.call is executed on client and server side, but Meteor doesn’t have a way stop the running on the server side if the validation on the client side fails (or at least, I don’t know how). With this pattern, I avoid sending data to the server with Meteor.call if validation fail.
I want to start using Collection2, but I can’t figure how to get the same pattern. All the examples I found involve the usage of direct Insert and Update on client side and Allow/Deny to manage security, but I want to stick with Meteor.call.
I found on documentation that I can validate before insert or update, but I don’t know how to get this to work:
Books.simpleSchema().namedContext().validate({title: "Ulysses", author: "James Joyce"}, {modifier: false});
I know the autoform package, but I want to avoid that package for now.
How can I validate with Collection2 on the client side before sending data to the server side with Meteor.call? Is my pattern wrong or incompatible with Collection2 and I need to do it in another way?