# Views Components

> View-level CRUD management components.

---

## Overview

Views are page-level components that provide full CRUD operations for domain entities. Each view follows a consistent pattern using shared components from `noob-mengyxu`.

---

## Components

| Component | File | Purpose |
|-----------|------|---------|
| User | `views/user.vue` | User management with password reset |
| Role | `views/role.vue` | Role management with permission assignment |
| Dictionary | `views/dictionary.vue` | Hierarchical dictionary with lazy loading |
| Config | `views/config.vue` | Configuration management |
| Buffer | `views/buffer.vue` | Buffer/warning management |
| Permission | `views/permission.vue` | Permission tree management |
| Status | `views/status.vue` | Status management |
| Log | `views/log.vue` | Log viewing |
| Scope | `views/scope.vue` | Scope management |

---

## Standard View Pattern

All view components follow the same structure:

```vue
<template>
    <SearchRow @query="query" @add="addItem">
        <!-- Optional filter inputs -->
    </SearchRow>
    <ListTable :props="props" :data="result">
        <template #action="{ row }">
            <TableAction @modify="modify" @del="delate">
                <!-- Optional extra actions -->
            </TableAction>
        </template>
    </ListTable>

    <el-dialog v-model="flag.modify">
        <ModifyForm :param="item" :rules="rules" :items="items" @confirm="confirm" />
    </el-dialog>
</template>
```

### Key Imports

```typescript
import { Api, ListTable, SearchRow, NoobInput, NoobSelect,
         TableAction, ModifyForm, Element, PageExample, PageResult } from "noob-mengyxu";
```

---

## Props Configuration

Column definitions using i18n keys:

```typescript
const props = [
    { i18n: 'user.prop.0', code: 'userId', width: 120 },      // i18n key, data field, width
    { i18n: 'user.prop.3', code: 'name', width: 120 },
    { i18n: 'user.prop.4', code: 'phone', width: 180 },
    { i18n: 'user.prop.7', code: 'action', slot: true, width: 180, fixed: 'right' }
]
```

### Column Options

| Option | Type | Description |
|--------|------|-------------|
| `i18n` | string | i18n key for column header |
| `code` | string | Field name in data object |
| `width` | number | Column width in pixels |
| `slot` | boolean | Enable slot for custom rendering |
| `fixed` | string | Fix column position ('right', 'left') |
| `dict` | string | Dictionary key for value translation |
| `type` | string | Column type (e.g., 'action') |

---

## Form Items Configuration

```typescript
const items = [
    { i18n: 'user.prop.0', code: 'userId', slot: true },           // slot = custom input
    { i18n: 'user.prop.1', code: 'password', type: 'password', noModify: true },
    { i18n: 'user.prop.2', code: 'roles', slot: true },
    { i18n: 'user.prop.3', code: 'name' }
]
```

### Item Options

| Option | Type | Description |
|--------|------|-------------|
| `i18n` | string | i18n key for label |
| `code` | string | Field name |
| `slot` | boolean | Custom input via slot |
| `type` | string | Input type (password, etc.) |
| `noModify` | boolean | Skip in modify mode |
| `dict` | string | Dictionary for select options |

---

## Rules Configuration

Validation rules using Element validators:

```typescript
const { SimpleRequired, Password, Username, Name, IdCard, Phone, Email } = Element;

const rules = {
    userId: [new Username()],
    password: [new Password()],
    roles: [{type: 'array', required:true, message: t('rule.pleaseSelect') + t('user.prop.2'), trigger: 'blur'}],
    name: [new SimpleRequired('user.prop.3'), new Name()],
    idCard: [new IdCard()],
    phone: [new Phone()],
    email: [new Email()]
}
```

---

## CRUD Operations Pattern

```typescript
const { list, add, set, del } = Api.user;
const result = ref(new PageResult());
const example = reactive<any>(new PageExample());

const query = () => {
    list(example).then((rsp: any) => result.value = rsp)
}

const addItem = () => {
    item.value = {};
    form.value?.clearValidate();
    flag.add = true;
    flag.modify = true;
}

const modify = (row) => {
    item.value = JSON.parse(JSON.stringify(row));
    form.value?.clearValidate();
    flag.add = false;
    flag.modify = true;
}

const delate = (row) => {
    Element.confirm(t('delete.0'), t('delete.1')).then(() => {
        del(row).then(query);
    })
}

const confirm = () => {
    const api = flag.add ? add : set;
    api(item.value).then(rsp => {
        if (rsp) {
            query();
            flag.modify = false;
        }
    })
}

onMounted(() => {
    query();
});
```

---

## Code Examples

### User View (`views/user.vue`)

User management with role assignment and password reset.

Key features:
- User CRUD with md5 password hashing
- Role multi-select
- Reset password action
- Action buttons with status check (`row.status != 'R'`)

```typescript
const { list, add, set, del, reset } = Api.user;
const { roles } = useStore().state;

// Reset password flow
const resetPass = row => {
    Element.confirm(t('user.reset.1'), t('user.reset.2')).then(() => {
        reset(row);
    })
}
```

### Role View (`views/role.vue`)

Role management with permission tree assignment.

Key features:
- Permission tree with `el-tree`
- Cascading check with `check-strictly`
- Vuex state update on role changes

```typescript
const { tree } = Api.permission;

const permission = (row) => {
    role.value = JSON.parse(JSON.stringify(row));
    permissionTree.value?.setCheckedNodes(role.value.permissions);
    flag.per = true;
}

const setPermission = () => {
    role.value.permissions = permissionTree.value?.getCheckedKeys();
    set(role.value).then(rsp => {
        if (rsp) {
            query();
            flag.per = false;
        }
    })
}
```

### Dictionary View (`views/dictionary.vue`)

Hierarchical dictionary with lazy loading.

Key features:
- Lazy loading with `rowKey` and `lazy`
- Tree structure transformation in query callback
- Parent-child relationship support

```typescript
const query = () => {
    list(example).then((rsp: any) => {
        result.value = rsp;
        result.value.data.forEach((i: any) => {
            i.child = i.children;
            i.children = [];
            i.hasChildren = true;
        })
    })
}
```

---

## Anti-Patterns

1. **Do not use `window.history.length` for navigation** - Use Vue Router properly
2. **Do not skip `form.value?.clearValidate()`** - Always clear validation on open
3. **Do not mutate props directly** - Use reactive refs
4. **Do not forget `onMounted` query** - Data should load on mount