"Company" : {
"-KRRqrR3Z3R8u1wRW6dd" : {
"PersonalInfo" : {`
"address" : "bakakeng",
"birthday" : "1992",
"firstName" : "Saoud",
"gender" : "Male",
"midName" : "Ahmed",
"phoneNo" : "12a12a12a",
"surName" : "Al- Maari"
},
"Qualification" : {
"Degree" : "PHD",
"Expreince" : "Doctor"
}
},
"-KRS1Jp2hhAbtLNx9jmq" : {
"PersonalInfo" : {
"address" : "sfsfsf",
"birthday" : "sfsfsfs",
"firstName" : "dfdsf",
"gender" : "sfsf",
"midName" : "sfsf",
"phoneNo" : "123456789",
"surName" : "jfkldsf"
}
}
}
You can order by a nested child as long as that child is at a fixed path.
In JavaScript:
var query = ref.child("Company ").orderByChild("PersonalInfo/phoneNo");
query.on('child_added', function(snapshot) {
console.log(snapshot.val());
});
Related
I'm trying to add a Wiremock stub that matches if the JSON in a request body is either non-existent OR an empty string.
The stub I have at the moment is:
{
"id" : "e331007e-3e6d-4660-b575-b04e774e88c6",
"request" : {
"urlPathPattern" : "/premises/([0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})/bookings/([0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})/non-arrivals",
"method" : "POST",
"bodyPatterns" : [ {
"matchesJsonPath" : "$.[?(#.reason === '' || #.reason == null)]"
} ]
},
"response" : {
"status" : 400,
"jsonBody" : {
"type" : "https://example.net/validation-error",
"title" : "Invalid request parameters",
"code" : 400,
"invalid-params" : [ {
"propertyName" : "reason",
"errorType" : "blank"
} ]
},
"headers" : {
"Content-Type" : "application/problem+json;charset=UTF-8"
}
},
"uuid" : "e331007e-3e6d-4660-b575-b04e774e88c6"
}
It matches is the reason is '', but not if reason is not present. Any ideas?
My firebase database structure is as below. I would like to search with a particular "Info/Email", let's say "abc#abc.com".
{
"-KhWrBcYyMluJbK7QpnK" : {
"Info" : {
"Email" : "xyz#gmail.com"
},
"Settings" : {
"Status" : "Accepted"
}
},
"-KhX0tgQvDtDYqt4XRoL" : {
"Info" : {
"Email" : "abc#abc.com"
},
"Settings" : {
"Status" : "Accepted"
}
},
"-KhX1eo7uFnOxqncDXQ5" : {
"Info" : {
"Email" : "abc#abc.com"
},
"Settings" : {
"Status" : "Pending"
}
}
}
I added a rule too
"Invitation" : {
".indexOn": ["Info/Email","Settings/Status"]
}
My AngularFire code is as follows:
var rootRef = firebase.database().ref().child('Invitation');
var userInvitations = rootRef.child("Info").orderByChild("Email").equalTo("abc#abc.com");
var allInvitations = $firebaseArray(userInvitations);
But I am getting a FIREBASE WARNING: Using an unspecified index. Consider adding ".indexOn": "Email" at /Invitation/Info to your security rules for better performance. and of course I am not receiving any data.
What are the mistakes I made here? Also can I add multiple orderByChild, for example: if I want to find details of the record, which has "Info/Email" equal to "abc#abc.com" and "Settings/Status" equal to "Pending" ?
The Firebase API only allows you to filter children one level deep
So with reference to your data structure:
if it were to be this way,
{
"-KhWrBcYyMluJbK7QpnK" : {
"Email" : "xyz#gmail.com",
"Settings" : {
"Status" : "Accepted"
}
},
"-KhX0tgQvDtDYqt4XRoL" : {
"Email" : "abc#abc.com",
"Settings" : {
"Status" : "Accepted"
}
},
"-KhX1eo7uFnOxqncDXQ5" : {
"Email" : "abc#abc.com",
"Settings" : {
"Status" : "Pending"
}
}
}
You should write your rules this way instead.
"Invitation" : {
"Info" : {
".indexOn": "Email",
},
"Settings" : {
".indexOn": "Status",
}
}
Then you will be able to query the data
var allInvitations = [];
var rootRef = firebase.database().ref().child('Invitation');
var userInvitations = rootRef.orderByChild("Email").equalTo("abc#abc.com");
userInvitations.on('value', snap => {
var invitations = snap.val()
for (prop in invitations ) {
allInvitations.push(invitations[prop ]);
}
console.log(allInvitations);
})
According to the Firebase documentation, we should avoid nesting data. With this in mind, I wonder what is the best practice, for my database, to store then find this data.
I have to store some "activities". Each "Activity" belongs to a "notion" and each "notion" belongs to a "type".
With this in mind, what is the best way to store all the activities for a fast access?
"Type_1" : {
"Notion_1" : {
"Activity_1" : "....",
"Activity_1" : "...."
},
"Notion_2" : {
"Activity_1" : "....",
"Activity_2" : "...."
}
},
"Type_2" : {
"Notion_1" : {
"Activity_1" : "....",
"Activity_1" : "...."
},
"Notion_2" : {
"Activity_1" : "....",
"Activity_2" : "...."
}
}
}
or
"Type_1_notion_1_activity_1" : { "content" : "...." },
"Type_1_notion_1_activity_2" : { "content" : "...." },
"Type_1_notion_2_activity_1" : { "content" : "...." },
"Type_1_notion_2_activity_2" : { "content" : "...." },
"Type_2_notion_1_activity_1" : { "content" : "...." },
"Type_2_notion_1_activity_2" : { "content" : "...." },
"Type_2_notion_2_activity_1" : { "content" : "...." },
"Type_2_notion_2_activity_2" : { "content" : "...." },
I wanted to use this to get the data
firebase.database().ref("/main/" + activityUID).once('value', function(snap) {...}
Where activityUID is either ["Type_1_notion_1_activity_1"] or ["Type_1/Notion_1/Activity_1"].
Is it a good method? Thank you!
I have a page that is calling addCheckin() method which is inside a controller. In the controller, I am trying to create a reference as follows:
var ref = firebase.database().ref("users/" + $scope.whichuser + "/meetings/" +$scope.whichmeeting + "/checkins");
$scope.whichuser and $scope.whichmeeting are the $routeParams that I am passing from another route.
Here's my checkin controller-
myApp.controller("CheckinsController",
['$scope','$rootScope','$firebaseArray','$routeParams','$firebaseObject',
function($scope,$rootScope,$firebaseArray,$routeParams,$firebaseObject){
$scope.whichuser = $routeParams.uid;
$scope.whichmeeting = $routeParams.mid;
var ref = firebase.database().ref("users/" + $scope.whichuser + "/meetings/" +$scope.whichmeeting + "/checkins");
$scope.addCheckin = function(){
var checkinInfo = $firebaseArray(ref);
var data={
firstname:$scope.firstname,
lastname:$scope.lastname,
email:$scope.email,
date:firebase.database.ServerValue.TIMESTAMP
}
checkinInfo.$add(data);
}
}]);/*controller*/
There are two errors that I am getting here-
Error 1:
Error: permission_denied at /users/Vp2P1MqKm7ckXqV2Uy3OzTnn6bB3/meetings: Client doesn't have permission to access the desired data.
Error 2:
Error: permission_denied at /users/Vp2P1MqKm7ckXqV2Uy3OzTnn6bB3/meetings/-KT5tqMYKXsFssmcRLm6/checkins: Client doesn't have permission to access the desired data.
And this is what I am trying to achieve:
Here's my JSON tree of the database:
{
"users" : {
"43ZU72ndoKb9LSEjBODKXe3nrou1" : {
"email" : "roy#123.com",
"firstname" : "Roy",
"lastname" : "Marshal",
"regUser" : "43ZU72ndoKb9LSEjBODKXe3nrou1"
},
"BHcYb40FC8YlCKL54ngyMhxPx2q1" : {
"date" : 1475574109981,
"email" : "sky#on.com",
"firstname" : "Sky",
"lastname" : "Thakur",
"meetings" : {
"-KTE3_45wXBqd-_yR1xv" : {
"date" : 1475574125198,
"name" : "ARET"
}
},
"regUser" : "BHcYb40FC8YlCKL54ngyMhxPx2q1"
},
"Vp2P1MqKm7ckXqV2Uy3OzTnn6bB3" : {
"email" : "jon#me.com",
"firstname" : "John",
"lastname" : "Cena",
"meetings" : {
"-KT5tqMYKXsFssmcRLm6" : {
"date" : 1475437094667,
"name" : "hourly"
},
"-KTAvH-ZkWyxrJrK_SDb" : {
"date" : 1475521356544,
"name" : "Hourly"
},
"-KTAwV69txdeT4i_horE" : {
"date" : 1475521676006,
"name" : "asdfg"
},
"-KTAwkH35EyPQZ17DmN9" : {
"date" : 1475521742244,
"name" : "qwerty"
},
"-KTAwsrqe24e8wFfRxpN" : {
"date" : 1475521777422,
"name" : "asfdsf"
},
"-KTAyYPSZLQUtOJ4g8Ak" : {
"date" : 1475522213781,
"name" : "Yearly"
},
"-KTB05PfXZLLk9Of3_Nb" : {
"date" : 1475522881473,
"name" : "Meet"
},
"-KTBG2cP9YLoP4lalN5M" : {
"date" : 1475527064378,
"name" : "JOI"
}
},
"regUser" : "Vp2P1MqKm7ckXqV2Uy3OzTnn6bB3"
}
}
}
My database rules are:
{
"rules": {
".read": true,
".write": true
}
}
I also posted this question before, but didn't get any appropriate solution.
I am still working with previous API, however I just came across one little issue. I am trying to query data from Firebase based on the limitToLast(100), however the .val() of snapshot is always null.
Here is sample data structure of my Messaging:
“Messaging” :{
"10153530036627802" : {
"10155174395220402" : {
"LastUpdate" : 1429295238531,
"Messages" : {
"1428338024339" : {
"date" : 1428338024339,
"message" : "Yo",
"sender" : "Uksz"
},
"1428338024488" : {
"date" : 1428338024487,
"message" : "Yo",
"sender" : "Uksz"
},
"1429023827304" : {
"date" : 1429023827303,
"message" : "Fygh",
"sender" : "Uksz"
},
"1429023828469" : {
"date" : 1429023828468,
"message" : "Fygh",
"sender" : "Uksz"
},
"1429295238532" : {
"date" : 1429295238531,
"message" : "Hgh",
"sender" : "Uksz"
}
},
"Name" : "Matt",
"Picture" : "https://scontent.xx.fbcdn.net/xxxx"
},
NEXT_USER_ID
And my code is:
var firebaseRef = new Firebase ("https://xxxx.firebaseio.com/Messages/");
var messageRef = firebaseRef.child(userId).child(recipient).child("Messages");
var messagesRef2 = messageRef.limitToLast(10);
messagesRef2.on("value", function(snapshot){
console.log(snapshot.val())
})
Whenever I am getting snapshot.val(), its value is equal to null. Where did I go wrong?
Thanks,
Uksz