assotiating two tables in sequelize

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Im having problems associating 2 models. I will try to describe the problem as detailed as possible and hope you can help me.

I have 2 Models: Zone and PLZ (both are also tables in database-mysql).
There can be One Zone having many PLZs and one PLZ can belong to One zone.

On saving a zone with its PLZs I have a table called "zone_plz" with only two columns: zone_id and plz_id. Both have foreign keys to Zone.id and PLZ.id

Zone Model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const PLZ = require('../models/PLZ');
const zone_plz = require('../models/relations/zone_plzs');


const Zone = sequelize.define('zone', 
 name: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 color: 
 type: Sequelize.STRING,
 allowNull: false
 
, 
 timestamps: true
);


module.exports = Zone;

PLZ model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const Zone = require('../models/Zone');
const zone_plz = require('../models/relations/zone_plzs');


const PLZ = sequelize.define('plz', 
 plz: 
 type: Sequelize.INTEGER,
 allowNull: false
 ,
 city: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 district: 
 type: Sequelize.STRING
 

);


module.exports = PLZ;

and this is the zone_plz model:

const Sequelize = require('sequelize');
const sequelize = require('../../util/database');
const PLZ = require('../../models/PLZ');
const Zone = require('../../models/Zone');


const zone_plz = sequelize.define('zone_plz', 
 zone_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: Zone,
 key: 'id',
 
 ,
 plz_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: PLZ,
 key: 'id',
 
 
, 
 timestamps: true
);


module.exports = zone_plz;

and this is how I query it:

router.get('/', function (req, res, next) 

 zone_plz.findAll(
 include: [
 model: PLZ,
 as: 'plz'
 ,
 
 model: Zone,
 as: 'zone'
 ]
 ).then((result) => 
 res.send(status: true, data: result)
 ).catch(function (err) 
 next(err)
 )
);

As you can see i want to return a zone with all the belonging plzs to the user.

Im new to sequelize and Im also not sure if this is the right approach. I get the error: plz is not associated to zone_plz!

Can anyone help me?

asked Nov 11 at 18:32

b0ss

255

add a comment |

up vote
-1
down vote

favorite

Im having problems associating 2 models. I will try to describe the problem as detailed as possible and hope you can help me.

I have 2 Models: Zone and PLZ (both are also tables in database-mysql).
There can be One Zone having many PLZs and one PLZ can belong to One zone.

On saving a zone with its PLZs I have a table called "zone_plz" with only two columns: zone_id and plz_id. Both have foreign keys to Zone.id and PLZ.id

Zone Model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const PLZ = require('../models/PLZ');
const zone_plz = require('../models/relations/zone_plzs');


const Zone = sequelize.define('zone', 
 name: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 color: 
 type: Sequelize.STRING,
 allowNull: false
 
, 
 timestamps: true
);


module.exports = Zone;

PLZ model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const Zone = require('../models/Zone');
const zone_plz = require('../models/relations/zone_plzs');


const PLZ = sequelize.define('plz', 
 plz: 
 type: Sequelize.INTEGER,
 allowNull: false
 ,
 city: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 district: 
 type: Sequelize.STRING
 

);


module.exports = PLZ;

and this is the zone_plz model:

const Sequelize = require('sequelize');
const sequelize = require('../../util/database');
const PLZ = require('../../models/PLZ');
const Zone = require('../../models/Zone');


const zone_plz = sequelize.define('zone_plz', 
 zone_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: Zone,
 key: 'id',
 
 ,
 plz_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: PLZ,
 key: 'id',
 
 
, 
 timestamps: true
);


module.exports = zone_plz;

and this is how I query it:

router.get('/', function (req, res, next) 

 zone_plz.findAll(
 include: [
 model: PLZ,
 as: 'plz'
 ,
 
 model: Zone,
 as: 'zone'
 ]
 ).then((result) => 
 res.send(status: true, data: result)
 ).catch(function (err) 
 next(err)
 )
);

As you can see i want to return a zone with all the belonging plzs to the user.

Im new to sequelize and Im also not sure if this is the right approach. I get the error: plz is not associated to zone_plz!

Can anyone help me?

asked Nov 11 at 18:32

b0ss

255

add a comment |

up vote
-1
down vote

favorite

Im having problems associating 2 models. I will try to describe the problem as detailed as possible and hope you can help me.

I have 2 Models: Zone and PLZ (both are also tables in database-mysql).
There can be One Zone having many PLZs and one PLZ can belong to One zone.

On saving a zone with its PLZs I have a table called "zone_plz" with only two columns: zone_id and plz_id. Both have foreign keys to Zone.id and PLZ.id

Zone Model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const PLZ = require('../models/PLZ');
const zone_plz = require('../models/relations/zone_plzs');


const Zone = sequelize.define('zone', 
 name: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 color: 
 type: Sequelize.STRING,
 allowNull: false
 
, 
 timestamps: true
);


module.exports = Zone;

PLZ model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const Zone = require('../models/Zone');
const zone_plz = require('../models/relations/zone_plzs');


const PLZ = sequelize.define('plz', 
 plz: 
 type: Sequelize.INTEGER,
 allowNull: false
 ,
 city: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 district: 
 type: Sequelize.STRING
 

);


module.exports = PLZ;

and this is the zone_plz model:

const Sequelize = require('sequelize');
const sequelize = require('../../util/database');
const PLZ = require('../../models/PLZ');
const Zone = require('../../models/Zone');


const zone_plz = sequelize.define('zone_plz', 
 zone_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: Zone,
 key: 'id',
 
 ,
 plz_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: PLZ,
 key: 'id',
 
 
, 
 timestamps: true
);


module.exports = zone_plz;

and this is how I query it:

router.get('/', function (req, res, next) 

 zone_plz.findAll(
 include: [
 model: PLZ,
 as: 'plz'
 ,
 
 model: Zone,
 as: 'zone'
 ]
 ).then((result) => 
 res.send(status: true, data: result)
 ).catch(function (err) 
 next(err)
 )
);

As you can see i want to return a zone with all the belonging plzs to the user.

Im new to sequelize and Im also not sure if this is the right approach. I get the error: plz is not associated to zone_plz!

Can anyone help me?

asked Nov 11 at 18:32

b0ss

255

Im having problems associating 2 models. I will try to describe the problem as detailed as possible and hope you can help me.

I have 2 Models: Zone and PLZ (both are also tables in database-mysql).
There can be One Zone having many PLZs and one PLZ can belong to One zone.

On saving a zone with its PLZs I have a table called "zone_plz" with only two columns: zone_id and plz_id. Both have foreign keys to Zone.id and PLZ.id

Zone Model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const PLZ = require('../models/PLZ');
const zone_plz = require('../models/relations/zone_plzs');


const Zone = sequelize.define('zone', 
 name: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 color: 
 type: Sequelize.STRING,
 allowNull: false
 
, 
 timestamps: true
);


module.exports = Zone;

PLZ model:

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const Zone = require('../models/Zone');
const zone_plz = require('../models/relations/zone_plzs');


const PLZ = sequelize.define('plz', 
 plz: 
 type: Sequelize.INTEGER,
 allowNull: false
 ,
 city: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 district: 
 type: Sequelize.STRING
 

);


module.exports = PLZ;

and this is the zone_plz model:

const Sequelize = require('sequelize');
const sequelize = require('../../util/database');
const PLZ = require('../../models/PLZ');
const Zone = require('../../models/Zone');


const zone_plz = sequelize.define('zone_plz', 
 zone_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: Zone,
 key: 'id',
 
 ,
 plz_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: PLZ,
 key: 'id',
 
 
, 
 timestamps: true
);


module.exports = zone_plz;

and this is how I query it:

router.get('/', function (req, res, next) 

 zone_plz.findAll(
 include: [
 model: PLZ,
 as: 'plz'
 ,
 
 model: Zone,
 as: 'zone'
 ]
 ).then((result) => 
 res.send(status: true, data: result)
 ).catch(function (err) 
 next(err)
 )
);

As you can see i want to return a zone with all the belonging plzs to the user.

Im new to sequelize and Im also not sure if this is the right approach. I get the error: plz is not associated to zone_plz!

Can anyone help me?

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const PLZ = require('../models/PLZ');
const zone_plz = require('../models/relations/zone_plzs');


const Zone = sequelize.define('zone', 
 name: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 color: 
 type: Sequelize.STRING,
 allowNull: false
 
, 
 timestamps: true
);


module.exports = Zone;

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const PLZ = require('../models/PLZ');
const zone_plz = require('../models/relations/zone_plzs');


const Zone = sequelize.define('zone', 
 name: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 color: 
 type: Sequelize.STRING,
 allowNull: false
 
, 
 timestamps: true
);


module.exports = Zone;

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const Zone = require('../models/Zone');
const zone_plz = require('../models/relations/zone_plzs');


const PLZ = sequelize.define('plz', 
 plz: 
 type: Sequelize.INTEGER,
 allowNull: false
 ,
 city: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 district: 
 type: Sequelize.STRING
 

);


module.exports = PLZ;

const Sequelize = require('sequelize');
const sequelize = require('../util/database');
const Zone = require('../models/Zone');
const zone_plz = require('../models/relations/zone_plzs');


const PLZ = sequelize.define('plz', 
 plz: 
 type: Sequelize.INTEGER,
 allowNull: false
 ,
 city: 
 type: Sequelize.STRING,
 allowNull: false
 ,
 district: 
 type: Sequelize.STRING
 

);


module.exports = PLZ;

const Sequelize = require('sequelize');
const sequelize = require('../../util/database');
const PLZ = require('../../models/PLZ');
const Zone = require('../../models/Zone');


const zone_plz = sequelize.define('zone_plz', 
 zone_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: Zone,
 key: 'id',
 
 ,
 plz_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: PLZ,
 key: 'id',
 
 
, 
 timestamps: true
);


module.exports = zone_plz;

const Sequelize = require('sequelize');
const sequelize = require('../../util/database');
const PLZ = require('../../models/PLZ');
const Zone = require('../../models/Zone');


const zone_plz = sequelize.define('zone_plz', 
 zone_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: Zone,
 key: 'id',
 
 ,
 plz_id: 
 type: Sequelize.INTEGER,
 allowNull: false,
 references: 
 model: PLZ,
 key: 'id',
 
 
, 
 timestamps: true
);


module.exports = zone_plz;

router.get('/', function (req, res, next) 

 zone_plz.findAll(
 include: [
 model: PLZ,
 as: 'plz'
 ,
 
 model: Zone,
 as: 'zone'
 ]
 ).then((result) => 
 res.send(status: true, data: result)
 ).catch(function (err) 
 next(err)
 )
);

router.get('/', function (req, res, next) 

 zone_plz.findAll(
 include: [
 model: PLZ,
 as: 'plz'
 ,
 
 model: Zone,
 as: 'zone'
 ]
 ).then((result) => 
 res.send(status: true, data: result)
 ).catch(function (err) 
 next(err)
 )
);

mysql node.js foreign-keys associations sequelize.js

asked Nov 11 at 18:32

b0ss

255

asked Nov 11 at 18:32

b0ss

255

asked Nov 11 at 18:32

b0ss

255

asked Nov 11 at 18:32

b0ss

255

asked Nov 11 at 18:32

b0ss

255

add a comment |

1 Answer
1

active

oldest

votes

up vote
0
down vote

You created references, not associations. Please, first of all, read the differences: Sequelize model references vs associations
then create associations between plz & zone like:

plz.belongsToMany(zone, through: 'zone_plz');
zone.belongsToMany(plz, through: 'zone_plz');

answered Nov 13 at 4:53

Dmytro Mysak

325213

Im writing this in my zone_plz model but getting the error: PLZ.belongsToMany(Zone, through: 'zone_plz'); ^ TypeError: PLZ.belongsToMany is not a function at Object.<anonymous> (/Applications/MAMP/htdocs/transport/models/relations/zone_plzs.js:28:5)
– b0ss
Nov 13 at 19:18

add a comment |

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1 Answer
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active

oldest

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1 Answer
1

active

oldest

votes

up vote
0
down vote

You created references, not associations. Please, first of all, read the differences: Sequelize model references vs associations
then create associations between plz & zone like:

plz.belongsToMany(zone, through: 'zone_plz');
zone.belongsToMany(plz, through: 'zone_plz');

answered Nov 13 at 4:53

Dmytro Mysak

325213

Im writing this in my zone_plz model but getting the error: PLZ.belongsToMany(Zone, through: 'zone_plz'); ^ TypeError: PLZ.belongsToMany is not a function at Object.<anonymous> (/Applications/MAMP/htdocs/transport/models/relations/zone_plzs.js:28:5)
– b0ss
Nov 13 at 19:18

add a comment |

up vote
0
down vote

You created references, not associations. Please, first of all, read the differences: Sequelize model references vs associations
then create associations between plz & zone like:

plz.belongsToMany(zone, through: 'zone_plz');
zone.belongsToMany(plz, through: 'zone_plz');

answered Nov 13 at 4:53

Dmytro Mysak

325213

Im writing this in my zone_plz model but getting the error: PLZ.belongsToMany(Zone, through: 'zone_plz'); ^ TypeError: PLZ.belongsToMany is not a function at Object.<anonymous> (/Applications/MAMP/htdocs/transport/models/relations/zone_plzs.js:28:5)
– b0ss
Nov 13 at 19:18

add a comment |

up vote
0
down vote

You created references, not associations. Please, first of all, read the differences: Sequelize model references vs associations
then create associations between plz & zone like:

plz.belongsToMany(zone, through: 'zone_plz');
zone.belongsToMany(plz, through: 'zone_plz');

answered Nov 13 at 4:53

Dmytro Mysak

325213

You created references, not associations. Please, first of all, read the differences: Sequelize model references vs associations
then create associations between plz & zone like:

plz.belongsToMany(zone, through: 'zone_plz');
zone.belongsToMany(plz, through: 'zone_plz');

answered Nov 13 at 4:53

Dmytro Mysak

325213

answered Nov 13 at 4:53

Dmytro Mysak

325213

answered Nov 13 at 4:53

Dmytro Mysak

325213

answered Nov 13 at 4:53

Dmytro Mysak

325213

Im writing this in my zone_plz model but getting the error: PLZ.belongsToMany(Zone, through: 'zone_plz'); ^ TypeError: PLZ.belongsToMany is not a function at Object.<anonymous> (/Applications/MAMP/htdocs/transport/models/relations/zone_plzs.js:28:5)
– b0ss
Nov 13 at 19:18

add a comment |

Im writing this in my zone_plz model but getting the error: PLZ.belongsToMany(Zone, through: 'zone_plz'); ^ TypeError: PLZ.belongsToMany is not a function at Object.<anonymous> (/Applications/MAMP/htdocs/transport/models/relations/zone_plzs.js:28:5)
– b0ss
Nov 13 at 19:18

Im writing this in my zone_plz model but getting the error: PLZ.belongsToMany(Zone, through: 'zone_plz'); ^ TypeError: PLZ.belongsToMany is not a function at Object.<anonymous> (/Applications/MAMP/htdocs/transport/models/relations/zone_plzs.js:28:5)
– b0ss
Nov 13 at 19:18

add a comment |

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