Mixing
sequelize belongstomany disable same id
Been digging in the docs for a while, couldn't find this option.
Scenerio:
User.belongsToMany(User, {
as: 'following',
through: 'follows',
foreignKey: 'follower_id',
otherKey: 'followed_id',
// disableSameId: true <--- the kind of option I'm looking for
});
in this scenerio, the behavior I'm looking for is to disallow a user to follow himself.
currently my implementation is obvious, checking for id1 !== id2 before making the request, but still wondering about this possible root shortcut
Anyone knows?
mysql sequelize.js
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
add a comment |
Been digging in the docs for a while, couldn't find this option.
Scenerio:
User.belongsToMany(User, {
as: 'following',
through: 'follows',
foreignKey: 'follower_id',
otherKey: 'followed_id',
// disableSameId: true <--- the kind of option I'm looking for
});
in this scenerio, the behavior I'm looking for is to disallow a user to follow himself.
currently my implementation is obvious, checking for id1 !== id2 before making the request, but still wondering about this possible root shortcut
Anyone knows?
mysql sequelize.js
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
add a comment |
Been digging in the docs for a while, couldn't find this option.
Scenerio:
User.belongsToMany(User, {
as: 'following',
through: 'follows',
foreignKey: 'follower_id',
otherKey: 'followed_id',
// disableSameId: true <--- the kind of option I'm looking for
});
in this scenerio, the behavior I'm looking for is to disallow a user to follow himself.
currently my implementation is obvious, checking for id1 !== id2 before making the request, but still wondering about this possible root shortcut
Anyone knows?
mysql sequelize.js
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
Been digging in the docs for a while, couldn't find this option.
Scenerio:
User.belongsToMany(User, {
as: 'following',
through: 'follows',
foreignKey: 'follower_id',
otherKey: 'followed_id',
// disableSameId: true <--- the kind of option I'm looking for
});
in this scenerio, the behavior I'm looking for is to disallow a user to follow himself.
currently my implementation is obvious, checking for id1 !== id2 before making the request, but still wondering about this possible root shortcut
Anyone knows?
mysql sequelize.js
mysql sequelize.js
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
asked Jan 2 at 16:52
Omer ShukarOmer Shukar
420514
420514
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Found a solution I am happy about:
search led me here which had me creating a model for this rel-table
Using a custom validator did the trick.
return sequelize.define('Follows',
{},
{
timestamps: true,
paranoid: false,
underscored: true,
freezeTableName: true,
tableName: 'follows',
validate: {
IdsShouldNotMatch() {
compare(this, 'Cannot follow yourself');
}
}
});
// model_helpers/compare.js
module.exports = (that, error) => {
let condition = Object.values(that.dataValues)
.map(v => Number(v))
.reduce((a, b) => a - b);
if (!condition) {
throw new Error(error);
}
};
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
add a comment |
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
});
}
});
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%2f54010175%2fsequelize-belongstomany-disable-same-id%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Found a solution I am happy about:
search led me here which had me creating a model for this rel-table
Using a custom validator did the trick.
return sequelize.define('Follows',
{},
{
timestamps: true,
paranoid: false,
underscored: true,
freezeTableName: true,
tableName: 'follows',
validate: {
IdsShouldNotMatch() {
compare(this, 'Cannot follow yourself');
}
}
});
// model_helpers/compare.js
module.exports = (that, error) => {
let condition = Object.values(that.dataValues)
.map(v => Number(v))
.reduce((a, b) => a - b);
if (!condition) {
throw new Error(error);
}
};
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
add a comment |
Found a solution I am happy about:
search led me here which had me creating a model for this rel-table
Using a custom validator did the trick.
return sequelize.define('Follows',
{},
{
timestamps: true,
paranoid: false,
underscored: true,
freezeTableName: true,
tableName: 'follows',
validate: {
IdsShouldNotMatch() {
compare(this, 'Cannot follow yourself');
}
}
});
// model_helpers/compare.js
module.exports = (that, error) => {
let condition = Object.values(that.dataValues)
.map(v => Number(v))
.reduce((a, b) => a - b);
if (!condition) {
throw new Error(error);
}
};
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
add a comment |
Found a solution I am happy about:
search led me here which had me creating a model for this rel-table
Using a custom validator did the trick.
return sequelize.define('Follows',
{},
{
timestamps: true,
paranoid: false,
underscored: true,
freezeTableName: true,
tableName: 'follows',
validate: {
IdsShouldNotMatch() {
compare(this, 'Cannot follow yourself');
}
}
});
// model_helpers/compare.js
module.exports = (that, error) => {
let condition = Object.values(that.dataValues)
.map(v => Number(v))
.reduce((a, b) => a - b);
if (!condition) {
throw new Error(error);
}
};
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
Found a solution I am happy about:
search led me here which had me creating a model for this rel-table
Using a custom validator did the trick.
return sequelize.define('Follows',
{},
{
timestamps: true,
paranoid: false,
underscored: true,
freezeTableName: true,
tableName: 'follows',
validate: {
IdsShouldNotMatch() {
compare(this, 'Cannot follow yourself');
}
}
});
// model_helpers/compare.js
module.exports = (that, error) => {
let condition = Object.values(that.dataValues)
.map(v => Number(v))
.reduce((a, b) => a - b);
if (!condition) {
throw new Error(error);
}
};
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
answered Jan 3 at 14:02
Omer ShukarOmer Shukar
420514
420514
add a comment |
add a comment |
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.
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%2f54010175%2fsequelize-belongstomany-disable-same-id%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
