Know when the end of data has reached in firestore collection
up vote
1
down vote
favorite
Lets say there are 100 documents in a collection. I want to load only 10 items at a time. i.e I have to fetch data 10 times when i completely load all the data from the collection. I couldn't achieve this result in firestore database collection. Each time the end has reached firestore starting getting data from the first index. In this situation when all the 100 data are loaded firestore starting loading the first 10 data.
_query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10);
as stated in firebase documentation but couldn't achieve the behaviour. I am implementation wrong approach to achieve the result? How could i achieve this behaviour in firestore while retrieving data?
firebase 
dart 
flutter google-cloud-firestore asked Nov 22 at 17:21
ujjwal mainali
121110
add a comment |
up vote
1
down vote
favorite
Lets say there are 100 documents in a collection. I want to load only 10 items at a time. i.e I have to fetch data 10 times when i completely load all the data from the collection. I couldn't achieve this result in firestore database collection. Each time the end has reached firestore starting getting data from the first index. In this situation when all the 100 data are loaded firestore starting loading the first 10 data.
_query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10);
as stated in firebase documentation but couldn't achieve the behaviour. I am implementation wrong approach to achieve the result? How could i achieve this behaviour in firestore while retrieving data?
firebase dart flutter google-cloud-firestore asked Nov 22 at 17:21
ujjwal mainali
121110
check the limit and startAfter properties from firestore documentation
– diegoveloper
Nov 22 at 17:55
tried it but couldn't achieve the behaviour. _query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10).This was my implementation.
– ujjwal mainali
Nov 22 at 18:27
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
Lets say there are 100 documents in a collection. I want to load only 10 items at a time. i.e I have to fetch data 10 times when i completely load all the data from the collection. I couldn't achieve this result in firestore database collection. Each time the end has reached firestore starting getting data from the first index. In this situation when all the 100 data are loaded firestore starting loading the first 10 data.
_query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10);
as stated in firebase documentation but couldn't achieve the behaviour. I am implementation wrong approach to achieve the result? How could i achieve this behaviour in firestore while retrieving data?
firebase dart flutter google-cloud-firestore asked Nov 22 at 17:21
ujjwal mainali
121110
Lets say there are 100 documents in a collection. I want to load only 10 items at a time. i.e I have to fetch data 10 times when i completely load all the data from the collection. I couldn't achieve this result in firestore database collection. Each time the end has reached firestore starting getting data from the first index. In this situation when all the 100 data are loaded firestore starting loading the first 10 data.
_query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10);
as stated in firebase documentation but couldn't achieve the behaviour. I am implementation wrong approach to achieve the result? How could i achieve this behaviour in firestore while retrieving data?
firebase dart flutter google-cloud-firestore firebase dart flutter google-cloud-firestore asked Nov 22 at 17:21
ujjwal mainali
121110
asked Nov 22 at 17:21
ujjwal mainali
121110
edited Nov 22 at 18:26
asked Nov 22 at 17:21
ujjwal mainali
121110
asked Nov 22 at 17:21
ujjwal mainali
121110
asked Nov 22 at 17:21
ujjwal mainali
121110
121110
check the limit and startAfter properties from firestore documentation
– diegoveloper
Nov 22 at 17:55
tried it but couldn't achieve the behaviour. _query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10).This was my implementation.
– ujjwal mainali
Nov 22 at 18:27
add a comment |
check the limit and startAfter properties from firestore documentation
– diegoveloper
Nov 22 at 17:55
tried it but couldn't achieve the behaviour. _query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10).This was my implementation.
– ujjwal mainali
Nov 22 at 18:27
check the limit and startAfter properties from firestore documentation
– diegoveloper
Nov 22 at 17:55
check the limit and startAfter properties from firestore documentation
– diegoveloper
Nov 22 at 17:55
tried it but couldn't achieve the behaviour. _query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10).This was my implementation.
– ujjwal mainali
Nov 22 at 18:27
tried it but couldn't achieve the behaviour. _query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10).This was my implementation.
– ujjwal mainali
Nov 22 at 18:27
add a comment |
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53435764%2fknow-when-the-end-of-data-has-reached-in-firestore-collection%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53435764%2fknow-when-the-end-of-data-has-reached-in-firestore-collection%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
check the limit and startAfter properties from firestore documentation
– diegoveloper
Nov 22 at 17:55
tried it but couldn't achieve the behaviour. _query = _query.startAfter([receivedData.elementAt((receivedData.length-1))]).limit(10).This was my implementation.
– ujjwal mainali
Nov 22 at 18:27