quankim / laravel-dynamodb-eloquent-syntax
来自 https://github.com/baopham/laravel-dynamodb 的 DynamoDB 自定义 Eloquent 语法
1.1
2017-07-10 08:39 UTC
Requires
- aws/aws-sdk-php: ^3.0.0
- illuminate/database: ~5.1
- illuminate/support: ~5.1
This package is not auto-updated.
Last update: 2024-09-15 04:36:41 UTC
README
DynamoDB 的 Eloquent 语法
来自 https://github.com/baopham/laravel-dynamodb
支持所有键类型 - 主哈希键和组合键。
仅限高级用户。如果您不熟悉 Laravel、Laravel Eloquent 和 DynamoDB,则建议您首先熟悉这些内容。
版本 0.4 的重大变更
安装
- Composer 安装
composer require quankim/laravel-dynamodb-eloquent-syntax ```
-
安装服务提供者
// config/app.php 'providers' => [ ... QuanKim\DynamoDbEloquentSyntax\DynamoDbServiceProvider::class, ... ];
-
将 DynamoDb 配置放入
config/aws.php
// config/aws.php ... 'credentials' => [ 'key' => env('AWS_ACCESS_KEY_ID', ''), 'secret' => env('AWS_SECRET_ACCESS_KEY', ''), ], 'region' => env('AWS_REGION', 'us-east-1'), 'version' => 'latest', 'endpoint' => env('AWS_ENDPOINT', ''), ...
用法
- 通过扩展模型
QuanKim\DynamoDbEloquentSyntax\DynamoDbModel
使用 Eloquent 支持的方法。这里的想法是您可以在不更改查询的情况下切换回 Eloquent。
支持的方法
// find and delete $model->find(<id>); $model->delete(); // Using getIterator(). If 'key' is the primary key or a global/local index and the condition is EQ, will use 'Query', otherwise 'Scan'. $model->where('key', 'key value')->get(); $model->where(['key' => 'key value']); // Chainable for 'AND'. 'OR' is not supported. $model->where('foo', 'bar') ->where('foo2', '!=' 'bar2') ->get(); // Using scan operator, not too reliable since DynamoDb will only give 1MB total of data. $model->all(); // Basically a scan but with limit of 1 item. $model->first(); // update $model->update($attributes); $model = new Model(); // Define fillable attributes in your Model class. $model->fillableAttr1 = 'foo'; $model->fillableAttr2 = 'foo'; // DynamoDb doesn't support incremented Id, so you need to use UUID for the primary key. $model->id = 'de305d54-75b4-431b-adb2-eb6b9e546014' $model->save(); // chunk $model->chunk(10, function ($records) { foreach ($records as $record) { } }); // Additional // Where in $model->where('id', 'in', []) // Sub query $model->where(function($q) { $q->where('id', 1) ->where('name', 'contains', 'a'); })->orWhere('email', 'contains', 'abc')); // Delete all $model->where('id', 'in', [1,2,3])->deleteAll(); // Increment/ Decrement a column $model->increment('view_count', 1); $model->decrement('total_product', 1); // Paginate $model->paginate([], $limit, $lastEvaluatedKey);
- 或者,如果您想将数据库表与 DynamoDb 表同步,请使用特质
QuanKim\DynamoDbEloquentSyntax\ModelTrait
,它将在模型保存后调用PutItem
。
索引
如果您的表有索引,请确保在模型类中声明它们,如下所示
/** * Indexes. * [ * 'simple_index_name' => [ * 'hash' => 'index_key' * ], * 'composite_index_name' => [ * 'hash' => 'index_hash_key', * 'range' => 'index_range_key' * ], * ]. * * @var array */ protected $dynamoDbIndexKeys = [ 'count_index' => [ 'hash' => 'count' ], ];
请注意,当键存在于多个索引中时,索引的顺序很重要。
例如,我们有这个
$this->where('user_id', 123)->where('count', '>', 10)->get();
使用
protected $dynamoDbIndexKeys = [ 'count_index' => [ 'hash' => 'user_id', 'range' => 'count' ], 'user_index' => [ 'hash' => 'user_id', ], ];
将使用 count_index
。
protected $dynamoDbIndexKeys = [ 'user_index' => [ 'hash' => 'user_id', ], 'count_index' => [ 'hash' => 'user_id', 'range' => 'count' ] ];
将使用 user_index
。
组合键
要使用与模型组合键
- 将
$compositeKey
设置为包含键属性名称的数组,例如
protected $primaryKey = ['customer_id']; protected $compositeKey = ['customer_id', 'agent_id'];
- 要找到具有组合键的记录
$model->find(['id1' => 'value1', 'id2' => 'value2']);