I have a collection like this one:
//Groups Collection
{
_id:1,
members: [
{
memberId: 'A1B2',
content: [1,2,3]
},
{
memberId: 'C10B',
content: [4,5,6]
}
]
},
{
_id:2,
members: [
{
memberId: 'A1B2',
content: [7,8,9]
},
{
memberId: 'F804',
content: [10,11,12]
}
]
}
and another Collection like this one:
//Users Collection
{
_id: 'A1B2',
name: 'Newton'
},
{
_id: 'C10B',
name: 'Gauss'
},
{
_id: 'F804',
name: 'Leibniz'
}
And I need a publication with all ids of users in Groups array with _Id = 1. I tryed:
Meteor.publish('themembers',idGroup,function() {
return Users.find({_id:{$in:Groups.findOne(idGroup).members.map(function(e) {return e.memberId})}});
});
then I subscribe:
Template.problem.onCreated(function() {
Meteor.subscribe('themembers',1);
});
Now I can access the members in the helper:
Template.problem.helpers({
members: function() {
return Users.find();
}
});
and the helpers works right too.
But now, If I add a new member to the group, it not appears in the list, ... my subscriptions seems not to be reactive.
What I doing Wrong?
Typical issue with Meteor:
You should look at peerlibrary:reactive-publish
https://github.com/peerlibrary/meteor-reactive-publish
Related
I want to make a SimpleSchema for documents with the the following format:
{
...,
permissions: {
foo: {allow: ["user1", "user2"]},
bar: {allow: ["admin"]},
}
}
If foo and bar were well-known strings in the schema, I would just do this:
const PermissionsSchema = new SimpleSchema({
allow: {type: [String]},
});
new SimpleSchema({
...,
'permissions.foo': {
type: PermissionSchema,
},
'permissions.bar': {
type: PermissionSchema,
},
})
However, in this case, there can be arbitrary string keys, not just foo and bar. The values must always match PermissionsSchema. Is there a way to express this?
Custom validators to the rescue!
import { ValidationError } from 'mdg:validation-error';
function permissionsValidator(keyRegEx) {
if (!(keyRegEx instanceof RegExp)) {
throw new Error('must pass a regular expression');
}
return function() {
// https://github.com/aldeed/meteor-simple-schema#custom-validation
const value = this.value;
for (let key in value) {
if (value.hasOwnProperty(key)) {
if (!keyRegEx.test(key)) {
return 'regEx';
}
try {
PermissionSchema.validate(value[key]);
} catch (ex) {
if (ex instanceof ValidationError) {
return ex.error;
}
}
}
}
};
}
new SimpleSchema({
...,
permissions: {
type: Object,
custom: permissionsValidator(/^.*$/),
blackbox: true,
optional: true,
defaultValue: {},
},
});
The error messages that come out are rubbish, though. Improvements or better strategies still welcome.
Provided I have following models:
module.exports = function (sequelize, DataTypes) {
var WorkingCalendar = sequelize.define('WorkingCalendar', {
date: DataTypes.DATEONLY,
isWorking: DataTypes.BOOLEAN,
}, {
indexes: [{
unique: true,
fields: ['PeriodId', 'date']
}]
}, {
classMethods: {
associate: function (models) {
WorkingCalendar.belongsTo(models.Period);
}
}
});
return WorkingCalendar;
};
module.exports = function(sequelize, DataTypes) {
var Period = sequelize.define('Period', {
name: DataTypes.STRING,
numberOfPeriods: DataTypes.INTEGER
}, {
classMethods: {
associate: function(models) {
Period.hasMany(models.WorkingCalendar);
}
}
});
return Period;
};
And then trying to get the Period through the WorkingCalendar as follows:
return models.WorkingCalendar
.findAll({
attributes: [
'PeriodId',
'date'
],
include: [
{ model: models.Period }
],
group: ['date', 'PeriodId']
});
I'm getting following error: Unhandled rejection Error: Period is not associated to WorkingCalendar!
Yet it does work the other way around.
My question:
Why can't I get the Period through the WorkingCalendar? And what do I have to do to make sure I can?
I have already tried putting the foreignKey attribute on the association as wel as the as binding but to no avail sadly. Any help would be very welcome!
So finally found it.
The indexes should be in the same object as classMethods
WRONG
module.exports = function (sequelize, DataTypes) {
var WorkingCalendar = sequelize.define('WorkingCalendar', {
date: DataTypes.DATEONLY,
isWorking: DataTypes.BOOLEAN,
}, {
indexes: [{
unique: true,
fields: ['PeriodId', 'date']
}]
}, {
classMethods: {
associate: function (models) {
WorkingCalendar.belongsTo(models.Period);
}
}
});
return WorkingCalendar;
};
RIGHT
module.exports = function (sequelize, DataTypes) {
var WorkingCalendar = sequelize.define('WorkingCalendar', {
date: DataTypes.DATEONLY,
isWorking: DataTypes.BOOLEAN,
}, {
indexes: [{
unique: true,
fields: ['PeriodId', 'date']
}],
classMethods: {
associate: function (models) {
WorkingCalendar.belongsTo(models.Period);
}
}
});
return WorkingCalendar;
};
Problem:
I have a number of groups that each have members that belong to different groups. Each member has a title (role) in each group.
I’m trying to list all the groups and display each member in the group and their title.
I’m using reywood:publish-composite, and everything is working except I can’t get the title of each member to display.
I think the problem is in the Template.groupMembers.helpers file
title: function() {
console.log(this.roleId); // this shows up in the console for each member
return Titles.findOne({titleId: this.roleId}); // but this doesn’t work
},
Collections:
groups {
"_id" : "xFSzAHBEps2dSKcWM",
"name" : "Generic Group",
"logo" : "generic-logo-hi.png"
}
members {
"_id" : "vyDtiaKKukZYQdFvs",
"groupId" : "xFSzAHBEps2dSKcWM",
"memberId" : "hRx8GBTyB5X8iQQ52",
"roleId" : "1"
}
Meteor.users {
"_id" : "hRx8GBTyB5X8iQQ52",
"profile" : {
"name" : "Bob Lorros"
},
}
titles {
"_id" : "bYsKpsyYtyKR8NYpm",
"titleId" : 1,
"title" : "Staff (non-voting)"
}
server/publications/publications.js
Meteor.publishComposite('groupMembers', {
find: function() {
return Groups.find({}, {
sort: {name: 1}
});
},
children: [
{
find: function() {
return Titles.find();
},
find: function(group) {
return Members.find({groupId: group._id});
},
children: [
{
find: function(member) {
return Meteor.users.find({_id: member.memberId});
}
},
]
},
]
});
client/templates/test/test.js
Template.groupMembers.helpers({
groupMembers: function() {
return Groups.find({}, {
sort: {name: 1}
});
},
members: function() {
return Members.find({groupId: this._id});
},
title: function() {
console.log(this.roleId); // this shows up in the console for each member
return Titles.findOne({titleId: this.roleId}); // but this doesn’t work
},
memberName: function() {
return Meteor.users.findOne(this.memberId);
},
});
client/templates/test/test.html
<template name="groupMembers">
<h4>Group - Members</h4>
{{#each groupMembers}}
<b>{{name}}</b><br>
{{#each members}}
{{memberName.profile.name}}
- title = {{title.title}}
<br>
{{/each}}
<br>
{{/each}}
</template>
Output :
This is the ouput
Looking at this from a completely different perspective, I actually think you could use alanning:roles to accomplish exactly what you're looking for. You can use the role as the 'title' in this case and the 'group' to replace your groups. Here's the documentation:
https://github.com/alanning/meteor-roles
Not sure but I think your second find may be overriding your first. Instead of:
find: function() {
return Titles.find();
},
find: function(group) {
return Members.find({groupId: group._id});
},
Try returning an array of cursors.
find: function() {
return [
Titles.find(),
Members.find({groupId: group._id})
];
},
I don't understand however why Titles is a child of GroupMembers when the query for titles is all titles. Did you mean to have a query there?
I think your publishComposite is causing the problem, each object in the children array should have only one find and zero or more children. Also the second parameter in your publication must be a function and not a JSON object. Try this,
Meteor.publishComposite('groupMembers', function () {
return {
find: function() {
return Groups.find({}, {
sort: {name: 1}
});
},
children: [{
find: function() {
return Titles.find();
}
},
{
find: function(group) {
return Members.find({groupId: group._id});
},
children: [{
find: function(member) {
return Meteor.users.find({_id: member.memberId});
}
}]
}]
};
});
You can also improve performance by moving Titles.find to the root level
Meteor.publishComposite('groupMembers', function () {
return [{
find: function() {
return Titles.find();
}
}, {
find: function() {
return Groups.find({}, {
sort: {name: 1}
});
},
children: [{
find: function(group) {
return Members.find({groupId: group._id});
},
children: [{
find: function(member) {
return Meteor.users.find({_id: member.memberId});
}
}]
}]
}];
});
I have the following SimpleSchema
Schema.Team = new SimpleSchema({
name:{
type:String
},
members: {
type: [Schema.User],
optional:true
}
});
I would like to insert (on the server) a new team document with the current user, as a reference (not as an embedded document).
I have tried:
Teams.insert({name:"theName",members:[Meteor.user()]}) // works but insert the user as an embedded doc.
Teams.insert({name:"theName",members:[Meteor.user()._id]}) // Error: 0 must be an object
I have also tried in two steps:
var id = Teams.insert({name:teamName});
Teams.update({ _id: id },{ $push: { 'users': Meteor.user()._id } });
Then I have another error I don't understand: Error: When the modifier option is true, validation object must have at least one operator
So how can I insert a document with a reference to another schema?
If you just want to store an array of userIds in your Team collection try:
Schema.Team = new SimpleSchema({
name:{
type:String
},
members: {
type: [String],
optional:true
}
});
Then
Teams.insert({ name: "theName", members: [Meteor.userId()] });
Should work. Later when you want to add an additional id you can just:
Teams.update({ _id: teamId },{ $addToSet: { members: Meteor.userId() }});
The following is probably the syntax you are after, assuming you are also using AutoForm.
If you are using collection2, you can also add an autovalue for when a team is created to automatically add the creator to that team for more convenience.
Schema.Team = new SimpleSchema({
name: {
type:String
},
members: {
type: [String],
defaultValue: [],
allowedValues: function () {
// only allow references to the user collection.
return Meteor.users.find().map(function (doc) {
return doc._id
});
},
autoform: {
// if using autoform, this will display their username as the option instead of their id.
options: function () {
return Meteor.users.find().map(function (doc) {
return {
value: doc._id,
label: doc.username // or something
}
})
}
},
autoValue: function () {
if (this.isInsert && !this.isFromTrustedCode) {
return [this.userId];
}
}
}
});
I have an autocomplete on a text box which shows zipcode, City, State. Currently when I start typing zipcode [e.g. 55414] the autocomplete works and starts to show the relevant zip,city and State. But I can't figure out how to trigger autocomplete if I start typing a city name. I want both of these triggers on the textbox. I tried to add another rule in the rules array but it doesn't work. ZipCodes collection has _id, city, state fields. _id is zipcode.
Template.search.helpers({
settings : function () {
return {
position: "bottom",
limit: 20,
rules: [{
collection: ZipCodes,
field: "_id",
template: Template.userPill
}]
}
}
Thanks in advance
I think you are using meteor-autocomplete
In that case you can use selector option
Template.search.helpers({
settings : function () {
return {
position: "bottom",
limit: 20,
rules: [{
collection: ZipCodes,
field: "_id",
template: Template.userPill,
selector: function(match) {
var regex;
regex = new RegExp(match, 'i');
return {
$or: [
{
'_id': regex
}, {
'city': regex
}
]
};
},
}]
}
}
})
I know this answer is too late for you, but it can be helpful to somebody in the future. Just do this inside your server-side publish function.
Meteor.publish('ZipCodesPublication', function(selector, options) {
let limitTo = Math.abs(options.limit) > 50 ? 50 : options.limit,
defaultSelector = selector._id,
regEx = defaultSelector.$regex,
regExOptions = defaultSelector.$options,
customSeletor = {
$or: [
{
city: {
$regex: regEx,
$options: regExOptions
}
},
{
_id: {
$regex: regEx,
$options: regExOptions
}
}
]
};
Autocomplete.publishCursor(Clients.find(customSeletor), this);
this.ready();
});
And just do this on the client:
Template.search.helpers({
settings : function () {
return {
position: "bottom",
limit: 20,
rules: [{
collection: 'ZipCodes',
subscription: 'ZipCodesPublication',
field: "_id",
template: Template.userPill
}]
}
}