Sequelize return a tree without sequelize-hierarchy












0















I can't find a way to return a tree with multples levels using just sequelize (without another module).



Sequelize-hierarchy resolve the problem, but is too much for me - add another table; return parent...



I need just list childrens.



An ugly solution would be to write include within include. But in this case, the levels would be limited.



bad way:



include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false
}
]
}
]
}
]


I came from the laravel and I solve this with only 3 lines. I believe that with node / sequelize is not different. But I can not find a solution.



Could someone help me, please?



##EDIT##



The fast solution, is create a helper to put include within include recursively.



const buildTreeIncludes = (model, level) => {
if (level > 0) {
return {
include: {
model,
as: 'children',
required: false,
...buildTreeIncludes(model, level-1)
}
}
} else {
return {};
}
}
export default buildTreeIncludes;









share|improve this question

























  • A few hours later, I decided to create a helper to create include within the include according to the pre-selected level. That way I maintain a good perfomance in the selection, with unknown levels, without having to use another library with the minimum of intervention in the code.

    – rodrigoclp
    Nov 26 '18 at 22:32
















0















I can't find a way to return a tree with multples levels using just sequelize (without another module).



Sequelize-hierarchy resolve the problem, but is too much for me - add another table; return parent...



I need just list childrens.



An ugly solution would be to write include within include. But in this case, the levels would be limited.



bad way:



include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false
}
]
}
]
}
]


I came from the laravel and I solve this with only 3 lines. I believe that with node / sequelize is not different. But I can not find a solution.



Could someone help me, please?



##EDIT##



The fast solution, is create a helper to put include within include recursively.



const buildTreeIncludes = (model, level) => {
if (level > 0) {
return {
include: {
model,
as: 'children',
required: false,
...buildTreeIncludes(model, level-1)
}
}
} else {
return {};
}
}
export default buildTreeIncludes;









share|improve this question

























  • A few hours later, I decided to create a helper to create include within the include according to the pre-selected level. That way I maintain a good perfomance in the selection, with unknown levels, without having to use another library with the minimum of intervention in the code.

    – rodrigoclp
    Nov 26 '18 at 22:32














0












0








0








I can't find a way to return a tree with multples levels using just sequelize (without another module).



Sequelize-hierarchy resolve the problem, but is too much for me - add another table; return parent...



I need just list childrens.



An ugly solution would be to write include within include. But in this case, the levels would be limited.



bad way:



include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false
}
]
}
]
}
]


I came from the laravel and I solve this with only 3 lines. I believe that with node / sequelize is not different. But I can not find a solution.



Could someone help me, please?



##EDIT##



The fast solution, is create a helper to put include within include recursively.



const buildTreeIncludes = (model, level) => {
if (level > 0) {
return {
include: {
model,
as: 'children',
required: false,
...buildTreeIncludes(model, level-1)
}
}
} else {
return {};
}
}
export default buildTreeIncludes;









share|improve this question
















I can't find a way to return a tree with multples levels using just sequelize (without another module).



Sequelize-hierarchy resolve the problem, but is too much for me - add another table; return parent...



I need just list childrens.



An ugly solution would be to write include within include. But in this case, the levels would be limited.



bad way:



include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false,
include: [
{
model: models.access_Resource,
as: 'children',
required: false
}
]
}
]
}
]


I came from the laravel and I solve this with only 3 lines. I believe that with node / sequelize is not different. But I can not find a solution.



Could someone help me, please?



##EDIT##



The fast solution, is create a helper to put include within include recursively.



const buildTreeIncludes = (model, level) => {
if (level > 0) {
return {
include: {
model,
as: 'children',
required: false,
...buildTreeIncludes(model, level-1)
}
}
} else {
return {};
}
}
export default buildTreeIncludes;






node.js sequelize.js






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 28 '18 at 16:31







rodrigoclp

















asked Nov 26 '18 at 20:11









rodrigoclprodrigoclp

11




11













  • A few hours later, I decided to create a helper to create include within the include according to the pre-selected level. That way I maintain a good perfomance in the selection, with unknown levels, without having to use another library with the minimum of intervention in the code.

    – rodrigoclp
    Nov 26 '18 at 22:32



















  • A few hours later, I decided to create a helper to create include within the include according to the pre-selected level. That way I maintain a good perfomance in the selection, with unknown levels, without having to use another library with the minimum of intervention in the code.

    – rodrigoclp
    Nov 26 '18 at 22:32

















A few hours later, I decided to create a helper to create include within the include according to the pre-selected level. That way I maintain a good perfomance in the selection, with unknown levels, without having to use another library with the minimum of intervention in the code.

– rodrigoclp
Nov 26 '18 at 22:32





A few hours later, I decided to create a helper to create include within the include according to the pre-selected level. That way I maintain a good perfomance in the selection, with unknown levels, without having to use another library with the minimum of intervention in the code.

– rodrigoclp
Nov 26 '18 at 22:32












0






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',
autoActivateHeartbeat: false,
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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53488332%2fsequelize-return-a-tree-without-sequelize-hierarchy%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































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.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53488332%2fsequelize-return-a-tree-without-sequelize-hierarchy%23new-answer', 'question_page');
}
);

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







Popular posts from this blog

Contact image not getting when fetch all contact list from iPhone by CNContact

count number of partitions of a set with n elements into k subsets

A CLEAN and SIMPLE way to add appendices to Table of Contents and bookmarks