@@ -74,7 +74,7 @@ As this article is for beginners, we will skip migrations for now and take a clo
...
@@ -74,7 +74,7 @@ As this article is for beginners, we will skip migrations for now and take a clo
In order to let Sequelize create schemas in the database, you need to describe what kind of data you want to store. This can be done with `sequelize.define`:
In order to let Sequelize create schemas in the database, you need to describe what kind of data you want to store. This can be done with `sequelize.define`:
```js
```js
varUser=sequelize.define('User',{
varUser=sequelize.define('user',{
username:Sequelize.STRING,
username:Sequelize.STRING,
password:Sequelize.STRING
password:Sequelize.STRING
});
});
...
@@ -111,7 +111,7 @@ Please note, that `{ force: true }` will drop the `Users` table and re-create it
...
@@ -111,7 +111,7 @@ Please note, that `{ force: true }` will drop the `Users` table and re-create it
You might not need the timestamps or you might not want the plural of the model's name as table name, right? Luckily there are configuration possibilities for that:
You might not need the timestamps or you might not want the plural of the model's name as table name, right? Luckily there are configuration possibilities for that:
```js
```js
varUser=sequelize.define('User',{
varUser=sequelize.define('user',{
username:Sequelize.STRING,
username:Sequelize.STRING,
password:Sequelize.STRING
password:Sequelize.STRING
},{
},{
...
@@ -123,7 +123,7 @@ var User = sequelize.define('User', {
...
@@ -123,7 +123,7 @@ var User = sequelize.define('User', {
And just in case you want to customize the timestamp field names, you can do it like this:
And just in case you want to customize the timestamp field names, you can do it like this:
```js
```js
varUser=sequelize.define('User',{
varUser=sequelize.define('user',{
username:Sequelize.STRING,
username:Sequelize.STRING,
password:Sequelize.STRING
password:Sequelize.STRING
},{
},{
...
@@ -135,7 +135,7 @@ var User = sequelize.define('User', {
...
@@ -135,7 +135,7 @@ var User = sequelize.define('User', {
Furthermore you can introduce a `deletedAt` timestamp so models are not actually deleted when you call `destroy`. Adding a `deletedAt` timestamp is called making the model 'paranoid':
Furthermore you can introduce a `deletedAt` timestamp so models are not actually deleted when you call `destroy`. Adding a `deletedAt` timestamp is called making the model 'paranoid':
```js
```js
varUser=sequelize.define('User',{
varUser=sequelize.define('user',{
username:Sequelize.STRING,
username:Sequelize.STRING,
password:Sequelize.STRING
password:Sequelize.STRING
},{
},{
...
@@ -201,8 +201,8 @@ An association between one source and one target is called "one to one" or 1:1 a
...
@@ -201,8 +201,8 @@ An association between one source and one target is called "one to one" or 1:1 a
Sequelize expects a foreign key in the target's schema. That means that there has to be an attribute respectively a column in the target's table.
Sequelize expects a foreign key in the target's schema. That means that there has to be an attribute respectively a column in the target's table.
```js
```js
varSource=sequelize.define('Source',{})
varSource=sequelize.define('source',{})
,Target=sequelize.define('Target',{})
,Target=sequelize.define('target',{})
Source.hasOne(Target)
Source.hasOne(Target)
Target.belongsTo(Source)
Target.belongsTo(Source)
...
@@ -222,8 +222,8 @@ An association between one source and many target is called "one to many" or 1:N
...
@@ -222,8 +222,8 @@ An association between one source and many target is called "one to many" or 1:N
Sequelize expects a foreign key in the target's schema. That means that there has to be an attribute respectively a column in the target's table.
Sequelize expects a foreign key in the target's schema. That means that there has to be an attribute respectively a column in the target's table.
```js
```js
varSource=sequelize.define('Source',{})
varSource=sequelize.define('source',{})
,Target=sequelize.define('Target',{})
,Target=sequelize.define('target',{})
Source.hasMany(Target)
Source.hasMany(Target)
Target.belongsTo(Source)
Target.belongsTo(Source)
...
@@ -243,8 +243,8 @@ An association between many sources and many targets is called "many to many" or
...
@@ -243,8 +243,8 @@ An association between many sources and many targets is called "many to many" or
Sequelize expects a junction table which contains a foreign key to the source table and a foreign key to the target table. A row in the table connects a source with a target.
Sequelize expects a junction table which contains a foreign key to the source table and a foreign key to the target table. A row in the table connects a source with a target.
```js
```js
varSource=sequelize.define('Source',{})
varSource=sequelize.define('source',{})
,Target=sequelize.define('Target',{})
,Target=sequelize.define('target',{})
Source.hasMany(Target)
Source.hasMany(Target)
Target.hasMany(Source)
Target.hasMany(Source)
...
@@ -262,8 +262,8 @@ sequelize
...
@@ -262,8 +262,8 @@ sequelize
Defining associations is nice, but won't give you any advantage if you cannot read or set associations. Of course Sequelize will add respective functions to your models. Depending on the type of association you will find different methods:
Defining associations is nice, but won't give you any advantage if you cannot read or set associations. Of course Sequelize will add respective functions to your models. Depending on the type of association you will find different methods:
For 1:N and N:M associations it makes sense to not only set the associations, but also to add or remove associations. Furthermore checking for an association can be handy.
For 1:N and N:M associations it makes sense to not only set the associations, but also to add or remove associations. Furthermore checking for an association can be handy.
```js
```js
varSource=sequelize.define('Source',{})
varSource=sequelize.define('source',{})
,Target=sequelize.define('Target',{});
,Target=sequelize.define('target',{});
Source.hasMany(Target);
Source.hasMany(Target);
Target.belongsTo(Source);
Target.belongsTo(Source);
...
@@ -360,7 +360,7 @@ Now that you know the basics of Sequelize, you might want to see everything in a
...
@@ -360,7 +360,7 @@ Now that you know the basics of Sequelize, you might want to see everything in a
@@ -19,7 +19,7 @@ Built instances will automatically get default values when they were defined&col
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@@ -19,7 +19,7 @@ Built instances will automatically get default values when they were defined&col
```js
```js
// first define the model
// first define the model
varTask=sequelize.define('Task',{
varTask=sequelize.define('task',{
title:Sequelize.STRING,
title:Sequelize.STRING,
rating:{type:Sequelize.STRING,defaultValue:3}
rating:{type:Sequelize.STRING,defaultValue:3}
})
})
...
@@ -205,7 +205,7 @@ User.bulkCreate([
...
@@ -205,7 +205,7 @@ User.bulkCreate([
`bulkCreate` was originally made to be a mainstream/fast way of inserting records, however, sometimes you want the luxury of being able to insert multiple rows at once without sacrificing model validations even when you explicitly tell Sequelize which columns to sift through. You can do by adding a `validate: true` property to the options object.
`bulkCreate` was originally made to be a mainstream/fast way of inserting records, however, sometimes you want the luxury of being able to insert multiple rows at once without sacrificing model validations even when you explicitly tell Sequelize which columns to sift through. You can do by adding a `validate: true` property to the options object.
@@ -197,7 +197,7 @@ Getters and Setters can be defined in 2 ways (you can mix and match these 2 appr
...
@@ -197,7 +197,7 @@ Getters and Setters can be defined in 2 ways (you can mix and match these 2 appr
### Defining as part of a property
### Defining as part of a property
```js
```js
varEmployee=sequelize.define('Employee',{
varEmployee=sequelize.define('employee',{
name:{
name:{
type:Sequelize.STRING,
type:Sequelize.STRING,
allowNull:false,
allowNull:false,
...
@@ -231,7 +231,7 @@ Below is an example of defining the getters and setters in the model options. Th
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@@ -231,7 +231,7 @@ Below is an example of defining the getters and setters in the model options. Th
Note that the `this.firstname` and `this.lastname` references in the `fullName` getter function will trigger a call to the respective getter functions. If you do not want that then use the `getDataValue()` method to access the raw value (see below).
Note that the `this.firstname` and `this.lastname` references in the `fullName` getter function will trigger a call to the respective getter functions. If you do not want that then use the `getDataValue()` method to access the raw value (see below).
```js
```js
varFoo=sequelize.define('Foo',{
varFoo=sequelize.define('foo',{
firstname:Sequelize.STRING,
firstname:Sequelize.STRING,
lastname:Sequelize.STRING
lastname:Sequelize.STRING
},{
},{
...
@@ -281,7 +281,7 @@ Validations are automatically run on `create`, `update` and `save`. You can also
...
@@ -281,7 +281,7 @@ Validations are automatically run on `create`, `update` and `save`. You can also
The validations are implemented by [validator.js][3].
The validations are implemented by [validator.js][3].
```js
```js
varValidateMe=sequelize.define('Foo',{
varValidateMe=sequelize.define('foo',{
foo:{
foo:{
type:Sequelize.STRING,
type:Sequelize.STRING,
validate:{
validate:{
...
@@ -372,7 +372,7 @@ Any error messages collected are put in the validation result object alongside t
...
@@ -372,7 +372,7 @@ Any error messages collected are put in the validation result object alongside t
An example:
An example:
```js
```js
varPub=Sequelize.define('Pub',{
varPub=Sequelize.define('pub',{
name:{type:Sequelize.STRING},
name:{type:Sequelize.STRING},
address:{type:Sequelize.STRING},
address:{type:Sequelize.STRING},
latitude:{
latitude:{
...
@@ -412,7 +412,7 @@ In this simple case an object fails validation if either latitude or longitude i
...
@@ -412,7 +412,7 @@ In this simple case an object fails validation if either latitude or longitude i
You can also influence the way Sequelize handles your column names:
You can also influence the way Sequelize handles your column names:
```js
```js
varBar=sequelize.define('Bar',{/* bla */},{
varBar=sequelize.define('bar',{/* bla */},{
// don't add the timestamp attributes (updatedAt, createdAt)
// don't add the timestamp attributes (updatedAt, createdAt)
timestamps:false,
timestamps:false,
...
@@ -438,7 +438,7 @@ var Bar = sequelize.define('Bar', { /* bla */ }, {
...
@@ -438,7 +438,7 @@ var Bar = sequelize.define('Bar', { /* bla */ }, {
If you want sequelize to handle timestamps, but only want some of them, or want your timestamps to be called something else, you can override each column individually:
If you want sequelize to handle timestamps, but only want some of them, or want your timestamps to be called something else, you can override each column individually:
```js
```js
varFoo=sequelize.define('Foo',{/* bla */},{
varFoo=sequelize.define('foo',{/* bla */},{
// don't forget to enable timestamps!
// don't forget to enable timestamps!
timestamps:true,
timestamps:true,
...
@@ -457,7 +457,7 @@ var Foo = sequelize.define('Foo', { /* bla */ }, {
...
@@ -457,7 +457,7 @@ var Foo = sequelize.define('Foo', { /* bla */ }, {
You can also change the database engine, e.g. to MyISAM. InnoDB is the default.
You can also change the database engine, e.g. to MyISAM. InnoDB is the default.
When you are retrieving data from the database there is a fair chance that you also want to get associations with the same query - this is called eager loading. The basic idea behind that, is the use of the attribute `include` when you are calling `find` or `findAll`. Lets assume the following setup:
When you are retrieving data from the database there is a fair chance that you also want to get associations with the same query - this is called eager loading. The basic idea behind that, is the use of the attribute `include` when you are calling `find` or `findAll`. Lets assume the following setup: