Update operators.md
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@ -1,6 +1,6 @@
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# Filter Operators
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用于 Repository 的 find、findOne、findAndCount、count 等 API 的 filter 参数中：
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Used in the filter paramaters of the `find`, `findOne`, `findAndCount`, `count`, etc. APIs of repository:
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```ts
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const repository = db.getRepository('books');
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@ -8,47 +8,47 @@ const repository = db.getRepository('books');
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repository.find({
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filter: {
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title: {
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$eq: '春秋',
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$eq: 'Spring and Autumn',
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}
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}
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});
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```
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为了支持 JSON 化，NocoBase 中将查询运算符以 $ 为前缀的字符串标识。
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To support JSON, NocoBase identifies query operators as a string prefixed with $.
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另外，NocoBase 也提供了扩展运算符的 API，详见 [`db.registerOperators()`](../database#registeroperators)。
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Moreover, NocoBase provides API to extend operators. Refer to [`db.registerOperators()`](../database#registeroperators).
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## 通用运算符
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## General Operators
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### `$eq`
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判断字段值是否相等于指定值。相当于 SQL 的 `=`。
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Check if the field value is equal to the specified value. Equivalent to `=` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$eq: '春秋',
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$eq: 'Spring and Autumn',
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}
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}
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});
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```
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等同于 `title: '春秋'`。
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Equal to `title: 'Spring and Autumn'`
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### `$ne`
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判断字段值是否不等于指定值。相当于 SQL 的 `!=`。
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Check if the field value is not equal to the specified value. Equivalent to `!=` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$ne: '春秋',
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$ne: 'Spring and Autumn',
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}
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}
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});
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@ -56,9 +56,9 @@ repository.find({
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### `$is`
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判断字段值是否为指定值。相当于 SQL 的 `IS`。
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Check if the field value is the specified value. Equivalent to `IS` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -72,9 +72,9 @@ repository.find({
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### `$not`
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判断字段值是否不为指定值。相当于 SQL 的 `IS NOT`。
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Check if the field value is not the specified value. Equivalent to `IS NOT` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -88,9 +88,10 @@ repository.find({
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### `$col`
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判断字段值是否等于另一个字段的值。相当于 SQL 的 `=`。
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Check if the field value is equal to the value of another field. Equivalent to `=` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -104,15 +105,15 @@ repository.find({
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### `$in`
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判断字段值是否在指定数组中。相当于 SQL 的 `IN`。
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Check if the field value is in the specified array. Equivalent to `IN` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$in: ['春秋', '战国'],
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$in: ['Spring and Autumn', 'Warring States'],
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}
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}
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});
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@ -120,15 +121,15 @@ repository.find({
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### `$notIn`
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判断字段值是否不在指定数组中。相当于 SQL 的 `NOT IN`。
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Check if the field value is not in the specified array. Equivalent to `NOT IN` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$notIn: ['春秋', '战国'],
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$notIn: ['Spring and Autumn', 'Warring States'],
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}
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}
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});
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@ -136,9 +137,9 @@ repository.find({
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### `$empty`
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判断一般字段是否为空，如果是字符串字段，判断是否为空串，如果是数组字段，判断是否为空数组。
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Check if the general field is empty. For string field, check if it is an empty string; for array field, check if it is an empty array.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -152,9 +153,9 @@ repository.find({
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### `$notEmpty`
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判断一般字段是否不为空，如果是字符串字段，判断是否不为空串，如果是数组字段，判断是否不为空数组。
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Check if the general field is not empty. For string field, check if it is not an empty string; for array field, check if it is not an empty array.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -166,19 +167,19 @@ repository.find({
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});
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```
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## 逻辑运算符
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## Logical Operators
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### `$and`
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逻辑 AND。相当于 SQL 的 `AND`。
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Logical AND. Equivalent to `AND` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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$and: [
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{ title: '诗经' },
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{ title: 'Book of Songs' },
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{ isbn: '1234567890' },
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]
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}
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@ -187,30 +188,30 @@ repository.find({
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### `$or`
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逻辑 OR。相当于 SQL 的 `OR`。
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Logical OR. Equivalent to `OR` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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$or: [
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{ title: '诗经' },
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{ title: 'Book of Songs' },
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{ publishedAt: { $lt: '0000-00-00T00:00:00Z' } },
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]
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}
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});
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```
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## 布尔类型字段运算符
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## Boolean Field Operators
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用于布尔类型字段 `type: 'boolean'`
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For boolean fields: `type: 'boolean'`
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### `$isFalsy`
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判断布尔类型字段值是否为假。布尔字段值为 `false`、`0` 和 `NULL` 的情况都会被判断为 `$isFalsy: true`。
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Check if a Boolean field value is false. Boolean field values of `false`, `0` and `NULL` are all judged to be `$isFalsy: true`.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -224,9 +225,9 @@ repository.find({
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### `$isTruly`
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判断布尔类型字段值是否为真。布尔字段值为 `true` 和 `1` 的情况都会被判断为 `$isTruly: true`。
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Check if a Boolean field value is true. Boolean field values of `true` and `1` are all judged to be `$isTruly: true`.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -238,9 +239,9 @@ repository.find({
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})
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```
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## 数字类型字段运算符
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## Numeric Type Field Operators
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用于数字类型字段，包括：
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For numeric type fields, including:
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- `type: 'integer'`
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- `type: 'float'`
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@ -250,9 +251,9 @@ repository.find({
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### `$gt`
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判断字段值是否大于指定值。相当于 SQL 的 `>`。
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Check if the field value is greater than the specified value. Equivalent to `>` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -266,9 +267,9 @@ repository.find({
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### `$gte`
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判断字段值是否大于等于指定值。相当于 SQL 的 `>=`。
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Check if the field value is equal to or greater than the specified value. Equivalent to `>=` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -282,9 +283,9 @@ repository.find({
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### `$lt`
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判断字段值是否小于指定值。相当于 SQL 的 `<`。
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Check if the field value is less than the specified value. Equivalent to `<` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -298,9 +299,9 @@ repository.find({
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### `$lte`
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判断字段值是否小于等于指定值。相当于 SQL 的 `<=`。
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Check if the field value is equal to or less than the specified value. Equivalent to `<=` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -314,9 +315,9 @@ repository.find({
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### `$between`
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判断字段值是否在指定的两个值之间。相当于 SQL 的 `BETWEEN`。
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Check if the field value is between the specified two values. Equivalent to `BETWEEN` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -330,9 +331,9 @@ repository.find({
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### `$notBetween`
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判断字段值是否不在指定的两个值之间。相当于 SQL 的 `NOT BETWEEN`。
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Check if the field value is not between the specified two values. Equivalent to `NOT BETWEEN` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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@ -344,21 +345,21 @@ repository.find({
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});
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```
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## 字符串类型字段运算符
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## String Type Field Operators
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用于字符串类型字段，包括 `string`
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For string type fields, including `string`.
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### `$includes`
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判断字符串字段是否包含指定子串。
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Check if the string field contains the specified substring.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$includes: '三字经',
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$includes: 'Three Character Classic',
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}
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}
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})
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@ -366,15 +367,15 @@ repository.find({
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### `$notIncludes`
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判断字符串字段是否不包含指定子串。
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Check if the string field does not contain the specified substring.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$notIncludes: '三字经',
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$notIncludes: 'Three Character Classic',
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}
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}
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})
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@ -382,15 +383,15 @@ repository.find({
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### `$startsWith`
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判断字符串字段是否以指定子串开头。
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Check if the string field starts with the specified substring.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$startsWith: '三字经',
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$startsWith: 'Three Character Classic',
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}
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}
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})
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@ -398,15 +399,15 @@ repository.find({
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### `$notStatsWith`
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判断字符串字段是否不以指定子串开头。
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Check if the string field does not start with the specified substring.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$notStatsWith: '三字经',
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$notStatsWith: 'Three Character Classic',
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}
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}
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})
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@ -414,15 +415,15 @@ repository.find({
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### `$endsWith`
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判断字符串字段是否以指定子串结尾。
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Check if the string field ends with the specified substring.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$endsWith: '三字经',
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$endsWith: 'Three Character Classic',
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}
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}
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})
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@ -430,15 +431,15 @@ repository.find({
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### `$notEndsWith`
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判断字符串字段是否不以指定子串结尾。
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Check if the string field does not end with the specified substring.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$notEndsWith: '三字经',
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$notEndsWith: 'Three Character Classic',
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}
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}
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})
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### `$like`
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判断字段值是否包含指定的字符串。相当于 SQL 的 `LIKE`。
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Check if the field value contains the specified string. Equivalent to `LIKE` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$like: '计算机',
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$like: 'Computer',
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}
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}
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});
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@ -462,15 +463,15 @@ repository.find({
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### `$notLike`
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判断字段值是否不包含指定的字符串。相当于 SQL 的 `NOT LIKE`。
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Check if the field value does not contain the specified string. Equivalent to `NOT LIKE` in SQL.
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$notLike: '计算机',
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$notLike: 'Computer',
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}
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}
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});
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@ -478,9 +479,9 @@ repository.find({
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### `$iLike`
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判断字段值是否包含指定的字符串，忽略大小写。相当于 SQL 的 `ILIKE`（仅 PG 适用）。
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Check if a field value contains the specified string, case ignored. Equivalent to `ILIKE` in SQL (PG only).
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**示例**
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**Example**
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```ts
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repository.find({
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@ -494,9 +495,9 @@ repository.find({
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### `$notILike`
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判断字段值是否不包含指定的字符串，忽略大小写。相当于 SQL 的 `NOT ILIKE`（仅 PG 适用）。
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Check if a field value does not contain the specified string, case ignored. Equivalent to `NOT ILIKE` in SQL (PG only).
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**示例**
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**Example**
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```ts
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repository.find({
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@ -510,15 +511,15 @@ repository.find({
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### `$regexp`
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判断字段值是否匹配指定的正则表达式。相当于 SQL 的 `REGEXP`（仅 PG 适用）。
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Check if the field value matches the specified regular expression. Equivalent to `REGEXP` in SQL (PG only).
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**示例**
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**Example**
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```ts
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repository.find({
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filter: {
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title: {
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$regexp: '^计算机',
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$regexp: '^Computer',
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}
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}
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});
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@ -526,15 +527,15 @@ repository.find({
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### `$notRegexp`
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|
||||
判断字段值是否不匹配指定的正则表达式。相当于 SQL 的 `NOT REGEXP`（仅 PG 适用）。
|
||||
Check if the field value does not matche the specified regular expression. Equivalent to `NOT REGEXP` in SQL (PG only).
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
filter: {
|
||||
title: {
|
||||
$notRegexp: '^计算机',
|
||||
$notRegexp: '^Computer',
|
||||
}
|
||||
}
|
||||
});
|
||||
@ -542,9 +543,9 @@ repository.find({
|
||||
|
||||
### `$iRegexp`
|
||||
|
||||
判断字段值是否匹配指定的正则表达式，忽略大小写。相当于 SQL 的 `~*`（仅 PG 适用）。
|
||||
Check if the field value matches the specified regular expression, case ignored. Equivalent to `~*` in SQL (PG only).
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -558,9 +559,9 @@ repository.find({
|
||||
|
||||
### `$notIRegexp`
|
||||
|
||||
判断字段值是否不匹配指定的正则表达式，忽略大小写。相当于 SQL 的 `!~*`（仅 PG 适用）。
|
||||
Check if the field value does not matche the specified regular expression, case ignored. Equivalent to `!~*` in SQL (PG only).
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -572,15 +573,15 @@ repository.find({
|
||||
});
|
||||
```
|
||||
|
||||
## 日期类型字段运算符
|
||||
## Date Type Field Operators
|
||||
|
||||
用于日期类型字段 `type: 'date'`
|
||||
For date type fields: `type: 'date'`
|
||||
|
||||
### `$dateOn`
|
||||
|
||||
判断日期字段是否在某天内。
|
||||
Check if the date field value is within a certain day.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -594,9 +595,9 @@ repository.find({
|
||||
|
||||
### `$dateNotOn`
|
||||
|
||||
判断日期字段是否不在某天内。
|
||||
Check if the date field value is not within a certain day.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -610,9 +611,9 @@ repository.find({
|
||||
|
||||
### `$dateBefore`
|
||||
|
||||
判断日期字段是否在某个值之前。相当于小于传入的日期值。
|
||||
Check if the date field value is before a certain value, i.e. less than the one passed in.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -626,9 +627,9 @@ repository.find({
|
||||
|
||||
### `$dateNotBefore`
|
||||
|
||||
判断日期字段是否不在某个值之前。相当于大于等于传入的日期值。
|
||||
Check if the date field value is not before a certain value, i.e. equal to or greater than the one passed in.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -642,9 +643,9 @@ repository.find({
|
||||
|
||||
### `$dateAfter`
|
||||
|
||||
判断日期字段是否在某个值之后。相当于大于传入的日期值。
|
||||
Check if the date field value is after a certain value, i.e. greater than the one passed in.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -658,9 +659,9 @@ repository.find({
|
||||
|
||||
### `$dateNotAfter`
|
||||
|
||||
判断日期字段是否不在某个值之后。相当于小于等于传入的日期值。
|
||||
Check if the date field value is not after a certain value, i.e. equal to or greater than the one passed in.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -672,21 +673,21 @@ repository.find({
|
||||
})
|
||||
```
|
||||
|
||||
## 数组类型字段运算符
|
||||
## Array Type Field Operators
|
||||
|
||||
用于数组类型字段 `type: 'array'`
|
||||
For array type fields: `type: 'array'`
|
||||
|
||||
### `$match`
|
||||
|
||||
判断数组字段的值是否匹配指定数组中的值。
|
||||
Check if the array field values match values of the specified array.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
filter: {
|
||||
tags: {
|
||||
$match: ['文学', '历史'],
|
||||
$match: ['literature', 'history'],
|
||||
}
|
||||
}
|
||||
})
|
||||
@ -694,15 +695,15 @@ repository.find({
|
||||
|
||||
### `$notMatch`
|
||||
|
||||
判断数组字段的值是否不匹配指定数组中的值。
|
||||
Check if the array field values do not match values of the specified array.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
filter: {
|
||||
tags: {
|
||||
$notMatch: ['文学', '历史'],
|
||||
$notMatch: ['literature', 'history'],
|
||||
}
|
||||
}
|
||||
})
|
||||
@ -710,15 +711,15 @@ repository.find({
|
||||
|
||||
### `$anyOf`
|
||||
|
||||
判断数组字段的值是否包含指定数组中的任意值。
|
||||
Check if the array field values contain any of the values of the specified array.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
filter: {
|
||||
tags: {
|
||||
$anyOf: ['文学', '历史'],
|
||||
$anyOf: ['literature', 'history'],
|
||||
}
|
||||
}
|
||||
})
|
||||
@ -726,15 +727,15 @@ repository.find({
|
||||
|
||||
### `$noneOf`
|
||||
|
||||
判断数组字段的值是否不包含指定数组中的任意值。
|
||||
Check if the array field values contain none of the values of the specified array.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
filter: {
|
||||
tags: {
|
||||
$noneOf: ['文学', '历史'],
|
||||
$noneOf: ['literature', 'history'],
|
||||
}
|
||||
}
|
||||
})
|
||||
@ -742,9 +743,9 @@ repository.find({
|
||||
|
||||
### `$arrayEmpty`
|
||||
|
||||
判断数组字段是否为空。
|
||||
Check if the array field is empty.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -758,9 +759,9 @@ repository.find({
|
||||
|
||||
### `$arrayNotEmpty`
|
||||
|
||||
判断数组字段是否不为空。
|
||||
Check if the array field is not empty.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -772,9 +773,9 @@ repository.find({
|
||||
});
|
||||
```
|
||||
|
||||
## 关系字段类型运算符
|
||||
## Relational Field Type Operators
|
||||
|
||||
用于判断关系是否存在，字段类型包括：
|
||||
For checking if a relationship exists, field types include:
|
||||
|
||||
- `type: 'hasOne'`
|
||||
- `type: 'hasMany'`
|
||||
@ -783,9 +784,9 @@ repository.find({
|
||||
|
||||
### `$exists`
|
||||
|
||||
有关系数据
|
||||
There is relational data existing.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
@ -799,9 +800,9 @@ repository.find({
|
||||
|
||||
### `$notExists`
|
||||
|
||||
无关系数据
|
||||
There is no relational data existing.
|
||||
|
||||
**示例**
|
||||
**Example**
|
||||
|
||||
```ts
|
||||
repository.find({
|
||||
|
||||
Loading…
Reference in New Issue
Block a user