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387 lines
7.0 KiB
Markdown
387 lines
7.0 KiB
Markdown
# Queries
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Strapi provides a utility function `strapi.query` to make database queries.
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You can just call `strapi.query('modelName', 'pluginName')` to access the query API for any model.
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These queries handle for you specific Strapi features like `components`, `dynamic zones`, `filters` and `search`.
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## API Reference
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:::: tabs
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::: tab find
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### `find`
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This method returns a list of entries matching Strapi filters.
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You can also pass a populate option to specify which relations you want to be populated.
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#### Examples
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**Find by id**:
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```js
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strapi.query('restaurant').find({ id: 1 });
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```
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**Find by in IN, with a limit**:
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```js
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strapi.query('restaurant').find({ _limit: 10, id_in: [1, 2] });
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```
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**Find by date orderBy name**:
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```js
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strapi
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.query('restaurant')
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.find({ date_gt: '2019-01-01T00:00:00Z', _sort: 'name:desc' });
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```
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**Find by id not in and populate a relation. Skip the first ten results**
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```js
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strapi
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.query('restaurant')
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.find({ id_nin: [1], _start: 10 }, ['category', 'category.name']);
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```
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:::
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::: tab findOne
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### `findOne`
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This method returns the first entry matching some basic params.
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You can also pass a populate option to specify which relations you want to be populated.
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#### Examples
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**Find one by id**:
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```js
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strapi.query('restaurant').findOne({ id: 1 });
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```
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**Find one by name**:
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```js
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strapi.query('restaurant').findOne({ name: 'restaurant name' });
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```
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**Find one by name and creation_date**:
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```js
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strapi
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.query('restaurant')
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.findOne({ name: 'restaurant name', date: '2019-01-01T00:00:00Z' });
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```
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**Find one by id and populate a relation**
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```js
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strapi.query('restaurant').findOne({ id: 1 }, ['category', 'category.name']);
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```
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:::
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::: tab create
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### `create`
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Creates an entry in the database and returns the entry.
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#### Example
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```js
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strapi.query('restaurant').create({
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name: 'restaurant name',
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// this is a dynamiczone field. the order is persisted in db.
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content: [
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{
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__component: 'blog.rich-text',
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title: 'Some title',
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subTitle: 'Some sub title',
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},
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{
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__component: 'blog.quote',
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quote: 'Some interesting quote',
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author: 1,
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},
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],
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// this is a component field. the order is persisted in db.
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opening_hours: [
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{
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day_interval: 'Mon',
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opening_hour: '7:00 PM',
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closing_hour: '11:00 PM',
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},
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{
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day_interval: 'Tue',
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opening_hour: '7:00 PM',
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closing_hour: '11:00 PM',
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},
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],
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// pass the id of a media to link it to the entry
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cover: 1,
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// automatically creates the relations when passing the ids in the field
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reviews: [1, 2, 3],
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});
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```
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:::
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::: tab update
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### `update`
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Updates an entry in the database and returns the entry.
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#### Examples
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**Update by id**
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```js
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strapi.query('restaurant').update(
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{ id: 1 },
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{
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name: 'restaurant name',
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content: [
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{
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__component: 'blog.rich-text',
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title: 'Some title',
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subTitle: 'Some sub title',
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},
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{
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__component: 'blog.quote',
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quote: 'Some interesting quote',
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author: 1,
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},
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],
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opening_hours: [
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{
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day_interval: 'Mon',
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opening_hour: '7:00 PM',
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closing_hour: '11:00 PM',
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},
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{
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day_interval: 'Tue',
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opening_hour: '7:00 PM',
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closing_hour: '11:00 PM',
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},
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],
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// pass the id of a media to link it to the entry
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cover: 1,
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// automatically creates the relations when passing the ids in the field
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reviews: [1, 2, 3],
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}
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);
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```
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When updating an entry with its components or dynamiczones beware that if you send the components without any `id` the previous components will be deleted and replaced. You can update the components by sending their `id` with the rest of the fields:
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**Update by id and update previous components**
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```js
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strapi.query('restaurant').update(
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{ id: 1 },
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{
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name: 'Mytitle',
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content: [
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{
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__component: 'blog.rich-text',
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id: 1,
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title: 'Some title',
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subTitle: 'Some sub title',
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},
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{
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__component: 'blog.quote',
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id: 1,
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quote: 'Some interesting quote',
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author: 1,
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},
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],
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opening_hours: [
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{
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id: 2,
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day_interval: 'Mon',
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opening_hour: '7:00 PM',
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closing_hour: '11:00 PM',
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},
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{
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id: 1,
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day_interval: 'Tue',
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opening_hour: '7:00 PM',
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closing_hour: '11:00 PM',
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},
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],
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// pass the id of a media to link it to the entry
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cover: 1,
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// automatically creates the relations when passing the ids in the field
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reviews: [1, 2, 3],
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}
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);
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```
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**Partial update by name**
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```js
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strapi.query('restaurant').update(
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{ title: 'specific name' },
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{
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title: 'restaurant name',
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}
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);
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```
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:::
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::: tab delete
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### `delete`
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Deletes and entry and return its value before deletion.
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You can delete multiple entries at once with the passed params.
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#### Examples
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**Delete one by id**
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```js
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strapi.query('restaurant').delete({ id: 1 });
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```
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**Delete multiple by field**
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```js
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strapi.query('restaurant').delete({ district: '_18th' });
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```
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:::
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::: tab count
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### `count`
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Returns the count of entries matching Strapi filters.
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#### Examples
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**Count by district**
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```js
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strapi.query('restaurant').count({ district: '_1st' });
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```
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**Count by name contains**
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```js
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strapi.query('restaurant').count({ name_contains: 'food' });
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```
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**Count by date less than**
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```js
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strapi.query('restaurant').count({ date_lt: '2019-08-01T00:00:00Z' });
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```
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:::
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::: tab search
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### `search`
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Returns entries based on a search on all fields allowing it. (this feature will return all entries on sqlite).
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#### Examples
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**Search first ten starting at 20**
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```js
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strapi
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.query('restaurant')
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.search({ _q: 'my search query', _limit: 10, _start: 20 });
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```
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**Search and sort**
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```js
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strapi
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.query('restaurant')
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.search({ _q: 'my search query', _limit: 100, _sort: 'date:desc' });
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```
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:::
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::: tab countSearch
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### `countSearch`
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Returns the total count of entries based on a search. (this feature will return all entries on sqlite).
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#### Example
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```js
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strapi.query('restaurant').countSearch({ _q: 'my search query' });
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```
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:::
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::::
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## Custom Queries
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When you want to customize your services or create new ones you will have to build your queries with the underlying ORM models.
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To access the underlying model:
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```js
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strapi.query(modelName, plugin).model;
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```
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Then you can run any queries available on the model. You should refer to the specific ORM documentation for more details:
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:::: tabs
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::: tab Bookshelf
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### Bookshelf
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Documentation: [https://bookshelfjs.org/](https://bookshelfjs.org/)
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**Example**
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```js
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const result = await strapi
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.query('restaurant')
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.model.query(qb => {
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qb.where('id', 1);
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})
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.fetch();
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const fields = result.toJSON();
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```
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:::
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::: tab Mongoose
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### Mongoose
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Documentation: [https://mongoosejs.com/](https://mongoosejs.com/)
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**Example**
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```js
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const result = strapi.query('restaurant').model.find({
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date: { $gte: '2019-01-01T00.00.00Z' },
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});
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const fields = result.toObject();
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```
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:::
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::::
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