sequelize.js - How to set params in join table via setAssociation options in sequelize? -


i've defined schema of table name labels_association, associated labels , model x follows:

'use strict';  module.exports = {   up: function(queryinterface, sequelize) {     return queryinterface.createtable('labels_association', {       labelid: {         allownull: false,         type: sequelize.integer       },       associationid: {         allownull: false,         type: sequelize.integer       },       associationtype: {         allownull: false,         type: sequelize.enum('x', 'y')       }     });   },   down: function(queryinterface) {     return queryinterface.droptable('labels_association');   } };

defining has , belongs many relationship of model x labels via labels_association table

x.belongstomany(label, {   as: 'labels',   through: {     model: 'labels_association',     attributes: ['associationid', 'associationtype'],     scope: {       associationtype: 'x'     }   },   foreignkey: 'associationid',   otherkey: 'labelid' });

though @ time of setting labels instance of model x, not able set associationtype 'x', while should've been taken care of scope attribute in belongstomany association.

instanceofx.setlabels(labelids, {   associationtype: 'x' })

how can set associationtype value 'x' in above scenario?

in reference issue tracked on github https://github.com/sequelize/sequelize/issues/5378

needed create model relationship table follows:

let labelassociation = sequelize.define('labelassociation', {   associationtype: {     type: string     // etc   } }, {   tablename: 'label_associations' });  x.belongstomany(label, {   as: 'labels',   through: {     model: labelassociation,     attributes: ['associationid', 'associationtype'],     scope: {       associationtype: 'x'     }   },   foreignkey: 'associationid',   otherkey: 'labelid' });

explanation follows:

the string argument(through.model in belongstomany options) define table name autogenerated model. if haven't defined model join model, need yes, otherwise sequelize doesnt know these attributes exist.


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