add ember-data require async inverse relationship rule

README.md

@@ -237,10 +237,11 @@ rules in templates can be disabled with eslint directives with mustache or html
 
 ### Ember Data
 
-| Name                                                                           | Description                                                          | 💼 | 🔧 | 💡 |
-| :----------------------------------------------------------------------------- | :------------------------------------------------------------------- | :- | :- | :- |
-| [no-empty-attrs](docs/rules/no-empty-attrs.md)                                 | disallow usage of empty attributes in Ember Data models              |    |    |    |
-| [use-ember-data-rfc-395-imports](docs/rules/use-ember-data-rfc-395-imports.md) | enforce usage of `@ember-data/` package imports instead `ember-data` | ✅  | 🔧 |    |
+| Name                                                                                   | Description                                                           | 💼 | 🔧 | 💡 |
+| :------------------------------------------------------------------------------------- | :-------------------------------------------------------------------- | :- | :- | :- |
+| [no-empty-attrs](docs/rules/no-empty-attrs.md)                                         | disallow usage of empty attributes in Ember Data models               |    |    |    |
+| [require-async-inverse-relationship](docs/rules/require-async-inverse-relationship.md) | require inverse to be specified in @belongsTo and @hasMany decorators |    |    |    |
+| [use-ember-data-rfc-395-imports](docs/rules/use-ember-data-rfc-395-imports.md)         | enforce usage of `@ember-data/` package imports instead `ember-data`  | ✅  | 🔧 |    |
 
 ### Ember Object
 

docs/rules/require-async-inverse-relationship.md

@@ -0,0 +1,41 @@
+# ember/require-async-inverse-relationship
+
+<!-- end auto-generated rule header -->
+
+This rule ensures that the `async` and `inverse` properties are specified in `@belongsTo` and `@hasMany` decorators in Ember Data models.
+
+## Rule Details
+
+This rule disallows:
+
+- Using `@belongsTo` without specifying the `async` and `inverse` properties.
+- Using `@hasMany` without specifying the `async` and `inverse` properties.
+
+## Examples
+
+Examples of **incorrect** code for this rule:
+
+```js
+import Model, { belongsTo, hasMany } from '@ember-data/model';
+
+export default class FolderModel extends Model {
+  @hasMany('folder', { inverse: 'parent' }) children;
+  @belongsTo('folder', { inverse: 'children' }) parent;
+}
+```
+
+Examples of **correct** code for this rule:
+
+```js
+import Model, { belongsTo, hasMany } from '@ember-data/model';
+
+export default class FolderModel extends Model {
+  @hasMany('folder', { async: true, inverse: 'parent' }) children;
+  @belongsTo('folder', { async: true, inverse: 'children' }) parent;
+}
+```
+
+## References
+
+- [Deprecate Non Strict Relationships](https://deprecations.emberjs.com/id/ember-data-deprecate-non-strict-relationships)
+- [Ember Data Relationships](https://guides.emberjs.com/release/models/relationships)

lib/rules/require-async-inverse-relationship.js

@@ -0,0 +1,75 @@
+/** @type {import('eslint').Rule.RuleModule} */
+module.exports = {
+  meta: {
+    type: 'suggestion',
+    docs: {
+      description: 'require inverse to be specified in @belongsTo and @hasMany decorators',
+      category: 'Ember Data',
+      recommended: false,
+      url: 'https://github.com/ember-cli/eslint-plugin-ember/tree/master/docs/rules/require-async-inverse-relationship.md',
+    },
+    schema: [],
+  },
+
+  create(context) {
+    return {
+      CallExpression(node) {
+        const decorator =
+          node.parent.type === 'Decorator' &&
+          ['belongsTo', 'hasMany'].includes(node.callee.name) &&
+          node;
+
+        if (decorator) {
+          const args = decorator.arguments;
+          const hasAsync = args.some(
+            (arg) =>
+              arg.type === 'ObjectExpression' &&
+              arg.properties.some((prop) => prop.key.name === 'async')
+          );
+          const hasBooleanAsync = args.some(
+            (arg) =>
+              arg.type === 'ObjectExpression' &&
+              arg.properties.some(
+                (prop) => prop.key.name === 'async' && typeof prop.value.value === 'boolean'
+              )
+          );
+          const hasInverse = args.some(
+            (arg) =>
+              arg.type === 'ObjectExpression' &&
+              arg.properties.some((prop) => prop.key.name === 'inverse')
+          );
+
+          if (!hasAsync) {
+            context.report({
+              node,
+              message: 'The @{{decorator}} decorator requires an `async` property to be specified.',
+              data: {
+                decorator: decorator.callee.name,
+              },
+            });
+          } else if (!hasBooleanAsync) {
+            context.report({
+              node,
+              message:
+                'The @{{decorator}} decorator requires an `async` property to be specified as a boolean.',
+              data: {
+                decorator: decorator.callee.name,
+              },
+            });
+          }
+
+          if (!hasInverse) {
+            context.report({
+              node,
+              message:
+                'The @{{decorator}} decorator requires an `inverse` property to be specified.',
+              data: {
+                decorator: decorator.callee.name,
+              },
+            });
+          }
+        }
+      },
+    };
+  },
+};

tests/lib/rules/require-async-inverse-relationship.js

@@ -0,0 +1,209 @@
+'use strict';
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const rule = require('../../../lib/rules/require-async-inverse-relationship');
+const RuleTester = require('eslint').RuleTester;
+
+const parserOptions = { ecmaVersion: 2022, sourceType: 'module' };
+
+const ruleTester = new RuleTester({
+  parserOptions,
+  parser: require.resolve('@babel/eslint-parser'),
+});
+
+//------------------------------------------------------------------------------
+// Tests
+//------------------------------------------------------------------------------
+
+ruleTester.run('require-async-inverse-relationship', rule, {
+  valid: [
+    `import Model, { belongsTo } from '@ember-data/model';
+
+      export default class extends Model {
+        @belongsTo('post', { async: true, inverse: 'comments' }) post;
+      }`,
+    `import Model, { hasMany } from '@ember-data/model';
+
+      export default class extends Model {
+        @hasMany('comment', { async: true, inverse: 'post' }) comments;
+      }`,
+    `import Model, { belongsTo, hasMany } from '@ember-data/model';
+
+      export default class extends Model {
+        @belongsTo('post', { async: false, inverse: 'comments' }) post;
+        @hasMany('user', { async: true, inverse: null }) owner;
+      }`,
+  ],
+
+  invalid: [
+    {
+      code: `import Model, { belongsTo } from '@ember-data/model';
+
+      export default class extends Model {
+        @belongsTo('post') post;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @belongsTo decorator requires an `async` property to be specified.',
+          type: 'CallExpression',
+        },
+        {
+          message: 'The @belongsTo decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { belongsTo } from '@ember-data/model';
+
+      export default class extends Model {
+        @belongsTo('post', {}) post;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @belongsTo decorator requires an `async` property to be specified.',
+          type: 'CallExpression',
+        },
+        {
+          message: 'The @belongsTo decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { belongsTo } from '@ember-data/model';
+
+      export default class extends Model {
+        @belongsTo('post', { async: 'comments'}) post;
+      }`,
+      output: null,
+      errors: [
+        {
+          message:
+            'The @belongsTo decorator requires an `async` property to be specified as a boolean.',
+          type: 'CallExpression',
+        },
+        {
+          message: 'The @belongsTo decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { belongsTo } from '@ember-data/model';
+
+      export default class extends Model {
+        @belongsTo('post', { async: true }) post;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @belongsTo decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { belongsTo } from '@ember-data/model';
+
+      export default class extends Model {
+        @belongsTo('post', { inverse: 'comments' }) post;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @belongsTo decorator requires an `async` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { hasMany } from '@ember-data/model';
+
+      export default class extends Model {
+        @hasMany('comment') comments;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @hasMany decorator requires an `async` property to be specified.',
+          type: 'CallExpression',
+        },
+        {
+          message: 'The @hasMany decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { hasMany } from '@ember-data/model';
+
+      export default class extends Model {
+        @hasMany('comment', {}) comments;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @hasMany decorator requires an `async` property to be specified.',
+          type: 'CallExpression',
+        },
+        {
+          message: 'The @hasMany decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { hasMany } from '@ember-data/model';
+
+      export default class extends Model {
+        @hasMany('comment', { async: 'comments'}) comments;
+      }`,
+      output: null,
+      errors: [
+        {
+          message:
+            'The @hasMany decorator requires an `async` property to be specified as a boolean.',
+          type: 'CallExpression',
+        },
+        {
+          message: 'The @hasMany decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { hasMany } from '@ember-data/model';
+
+      export default class extends Model {
+        @hasMany('comment', { async: true }) comments;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @hasMany decorator requires an `inverse` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+    {
+      code: `import Model, { hasMany } from '@ember-data/model';
+
+      export default class extends Model {
+        @hasMany('comment', { inverse: 'post' }) comments;
+      }`,
+      output: null,
+      errors: [
+        {
+          message: 'The @hasMany decorator requires an `async` property to be specified.',
+          type: 'CallExpression',
+        },
+      ],
+    },
+  ],
+});