CakePHP 3 对联合查询的结果进行分页
CakePHP 3 paginating a result from union query
我有两个 table。第一个有主要产品数据，另一个有这些产品的次要描述，由第二个 table 上的 products_id 外键链接。
我已经创建了 SQL，一切看起来都不错。但是当我转换为 CakePHP 3 的 ORM 时，结果相同 SQL 代码，它显示了一个大问题：每个页面都显示来自第二个数据的次要描述 table.
在第一页分页索引，谁有主要产品进入，按预期工作。首先，显示主要产品，然后描述显示次要 table 数据中的次要描述。但是当我点击查看下一页时，这些次要产品就在那里，当我期望从这个 table 数据中得到任何东西时。
只有当主要产品在该页面上时，我才需要显示这些次要描述，当它不在该页面上时，它不会显示该 table 的任何记录。就像在 SQL 脚本结果中一样。
在这个SQL脚本上你可以看到我需要的东西：
(SELECT
Products.id,
(null) AS product_titles_id,
(Products.title) AS title_,
Products.product_groups_id,
Products.product_types_id,
Products.code,
Products.title,
Products.ean,
Products.ncm,
Products.obs,
Products.minimum,
Products.maximum,
ProductTypes.id,
ProductTypes.code,
ProductTypes.title,
ProductTypes.calc_cost,
ProductGroups.id,
ProductGroups.code,
ProductGroups.title
FROM `products` Products
LEFT JOIN `product_groups` ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes ON Products.product_types_id = ProductTypes.id)
UNION
(SELECT
Products.id,
ProductTitles.id AS product_titles_id,
(ProductTitles.title) AS title_,
Products.product_groups_id,
Products.product_types_id,
-- ProductTitles.products_id,
ProductTitles.code,
ProductTitles.title,
Products.ean,
Products.ncm,
ProductTitles.obs,
Products.minimum,
Products.maximum,
ProductTypes.id,
ProductTypes.code,
ProductTypes.title,
ProductTypes.calc_cost,
ProductGroups.id,
ProductGroups.code,
ProductGroups.title
FROM `product_titles` ProductTitles
LEFT JOIN `products` Products ON products.id = ProductTitles.products_id
LEFT JOIN `product_groups` ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes ON Products.product_types_id = ProductTypes.id)
ORDER BY title_
这是 SQL 脚本的结果：
id product_titles_id title_
0080 NULL SUPORTE DE PRESSAO
7545 NULL BA RET.
3177 NULL CORT RDX
3177 17 EMEN RDX (secondary description)
3177 18 PART RDX (secondary description)
6623 NULL LATAO CALCO CALIB.
8079 NULL TRANSM DE PRESSAO
4242 NULL GY 6/6 P.U CORAL
这是我在 CakePHP ORM 脚本上所做的：
//Main table of products
$qry_products = $this->Products->findByParametersId('85')
->select(['Products.id', 'product_titles_id' => 'null',
'title_' => 'Products.title',
'Products.product_groups_id',
'Products.product_types_id',
'Products.code', 'Products.title',
'Products.ean', 'Products.ncm',
'Products.obs', 'Products.minimum',
'Products.maximum', 'ProductTypes.id',
'ProductTypes.code', 'ProductTypes.title',
'ProductTypes.calc_cost', 'ProductGroups.id',
'ProductGroups.code', 'ProductGroups.title',
'ProductTitles' => '0'
])
->where($where)
->join([
'ProductGroups' => ['table' => 'product_groups',
'type' => 'LEFT',
'conditions' => 'Products.product_groups_id = ProductGroups.id'
],
'ProductTypes' => ['table' => 'product_types',
'type' => 'LEFT',
'conditions' => 'Products.product_types_id = ProductTypes.id'
]
])
->limit(20);
//Secondary table of products' descriptions:
$qry_productTitles = $this->ProductTitles->findByParametersId('85')
->select(['Products.id',
'product_titles_id' => 'ProductTitles.id',
'title_' => 'ProductTitles.title',
'product_groups_id' => 'Products.product_groups_id',
'product_types_id' => 'Products.product_types_id',
'ProductTitles.code', 'ProductTitles.title',
'ean' => 'Products.ean',
'ncm' => 'Products.ncm',
'obs' => 'Products.obs',
'minimum' => 'Products.minimum',
'maximum' => 'Products.maximum',
'ProductTypes.id', 'ProductTypes.code',
'ProductTypes.title',
'ProductTypes.calc_cost',
'ProductGroups.id', 'ProductGroups.code',
'ProductGroups.title',
'ProductTitles' => '1'
])
->join([
'Products' => ['table' => 'products',
'type' => 'LEFT',
'conditions' => 'ProductTitles.products_id = Products.id'
],
'ProductGroups' => ['table' => 'product_groups',
'type' => 'LEFT',
'conditions' => 'Products.product_groups_id = ProductGroups.id'
],
'ProductTypes' => ['table' => 'product_types',
'type' => 'LEFT',
'conditions' => 'Products.product_types_id = ProductTypes.id'
]
]);
//Union these two tables and put some where conditions and ordanation:
$products = $qry_products->union($qry_productTitles)
->where($where)
->epilog('ORDER BY title_');
//->order(['title_ ASC']);
这是从 CakePHP ORM 生成的 SQL 结果：
'sql' => '
(SELECT Products.id AS `Products__id`,
null AS `product_titles_id`, Products.title AS `title_`,
Products.product_groups_id AS `Products__product_groups_id`,
Products.product_types_id AS `Products__product_types_id`,
Products.code AS `Products__code`,
Products.title AS `Products__title`,
Products.ean AS `Products__ean`,
Products.ncm AS `Products__ncm`,
Products.obs AS `Products__obs`,
Products.minimum AS `Products__minimum`,
Products.maximum AS `Products__maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`,
0 AS `ProductTitles`
FROM products Products
LEFT JOIN product_groups ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN product_types ProductTypes ON Products.product_types_id = ProductTypes.id
ORDER BY title_ LIMIT 20)
UNION
(SELECT Products.id AS `Products__id`,
ProductTitles.id AS `product_titles_id`,
ProductTitles.title AS `title_`,
Products.product_groups_id AS `product_groups_id`,
Products.product_types_id AS `product_types_id`,
ProductTitles.code AS `ProductTitles__code`,
ProductTitles.title AS `ProductTitles__title`,
Products.ean AS `ean`, Products.ncm AS `ncm`,
Products.obs AS `obs`, Products.minimum AS `minimum`,
Products.maximum AS `maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`,
1 AS `ProductTitles`
FROM product_titles ProductTitles
LEFT JOIN products Products ON ProductTitles.products_id = Products.id
LEFT JOIN product_groups ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN product_types ProductTypes ON Products.product_types_id = ProductTypes.id)
ORDER BY title_',
问题已使用以下代码解决：
$products_union = "((SELECT
Products.id AS `id`,
Products.product_groups_id,
Products.product_types_id,
Products.code AS `code`,
Products.title AS `title`,
Products.ean AS `ean`,
Products.ncm AS `ncm`,
Products.obs AS `obs`,
Products.minimum AS `minimum`,
Products.maximum AS `maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`
FROM `products` Products
LEFT JOIN `product_groups` ProductGroups
ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes
ON Products.product_types_id = ProductTypes.id)
UNION ALL
(SELECT
Products.id AS `id`,
Products.product_groups_id,
Products.product_types_id,
ProductTitles.code AS `code`,
ProductTitles.title AS `title`,
Products.ean AS `ean`,
Products.ncm AS `ncm`,
ProductTitles.obs AS `obs`,
Products.minimum AS `minimum`,
Products.maximum AS `maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`
FROM `product_titles` ProductTitles
LEFT JOIN `products` Products
ON Products.id = ProductTitles.products_id
LEFT JOIN `product_groups` ProductGroups
ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes
ON Products.product_types_id = ProductTypes.id
))";
$products = $this->Products->find('all')
->from([$this->Products->alias() => $products_union])
->contain(['ProductTypes', 'ProductGroups'])
->where($where)
->order(['Products.title']);
现在，'LIMIT' 和 'OFFSET' 在正确的位置。我仍然使用 3.4 CakePHP 版本。
我有两个 table。第一个有主要产品数据，另一个有这些产品的次要描述，由第二个 table 上的 products_id 外键链接。
我已经创建了 SQL，一切看起来都不错。但是当我转换为 CakePHP 3 的 ORM 时，结果相同 SQL 代码，它显示了一个大问题：每个页面都显示来自第二个数据的次要描述 table.
在第一页分页索引，谁有主要产品进入，按预期工作。首先，显示主要产品，然后描述显示次要 table 数据中的次要描述。但是当我点击查看下一页时，这些次要产品就在那里，当我期望从这个 table 数据中得到任何东西时。
只有当主要产品在该页面上时，我才需要显示这些次要描述，当它不在该页面上时，它不会显示该 table 的任何记录。就像在 SQL 脚本结果中一样。
在这个SQL脚本上你可以看到我需要的东西：
(SELECT
Products.id,
(null) AS product_titles_id,
(Products.title) AS title_,
Products.product_groups_id,
Products.product_types_id,
Products.code,
Products.title,
Products.ean,
Products.ncm,
Products.obs,
Products.minimum,
Products.maximum,
ProductTypes.id,
ProductTypes.code,
ProductTypes.title,
ProductTypes.calc_cost,
ProductGroups.id,
ProductGroups.code,
ProductGroups.title
FROM `products` Products
LEFT JOIN `product_groups` ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes ON Products.product_types_id = ProductTypes.id)
UNION
(SELECT
Products.id,
ProductTitles.id AS product_titles_id,
(ProductTitles.title) AS title_,
Products.product_groups_id,
Products.product_types_id,
-- ProductTitles.products_id,
ProductTitles.code,
ProductTitles.title,
Products.ean,
Products.ncm,
ProductTitles.obs,
Products.minimum,
Products.maximum,
ProductTypes.id,
ProductTypes.code,
ProductTypes.title,
ProductTypes.calc_cost,
ProductGroups.id,
ProductGroups.code,
ProductGroups.title
FROM `product_titles` ProductTitles
LEFT JOIN `products` Products ON products.id = ProductTitles.products_id
LEFT JOIN `product_groups` ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes ON Products.product_types_id = ProductTypes.id)
ORDER BY title_
这是 SQL 脚本的结果：
id product_titles_id title_
0080 NULL SUPORTE DE PRESSAO
7545 NULL BA RET.
3177 NULL CORT RDX
3177 17 EMEN RDX (secondary description)
3177 18 PART RDX (secondary description)
6623 NULL LATAO CALCO CALIB.
8079 NULL TRANSM DE PRESSAO
4242 NULL GY 6/6 P.U CORAL
这是我在 CakePHP ORM 脚本上所做的：
//Main table of products
$qry_products = $this->Products->findByParametersId('85')
->select(['Products.id', 'product_titles_id' => 'null',
'title_' => 'Products.title',
'Products.product_groups_id',
'Products.product_types_id',
'Products.code', 'Products.title',
'Products.ean', 'Products.ncm',
'Products.obs', 'Products.minimum',
'Products.maximum', 'ProductTypes.id',
'ProductTypes.code', 'ProductTypes.title',
'ProductTypes.calc_cost', 'ProductGroups.id',
'ProductGroups.code', 'ProductGroups.title',
'ProductTitles' => '0'
])
->where($where)
->join([
'ProductGroups' => ['table' => 'product_groups',
'type' => 'LEFT',
'conditions' => 'Products.product_groups_id = ProductGroups.id'
],
'ProductTypes' => ['table' => 'product_types',
'type' => 'LEFT',
'conditions' => 'Products.product_types_id = ProductTypes.id'
]
])
->limit(20);
//Secondary table of products' descriptions:
$qry_productTitles = $this->ProductTitles->findByParametersId('85')
->select(['Products.id',
'product_titles_id' => 'ProductTitles.id',
'title_' => 'ProductTitles.title',
'product_groups_id' => 'Products.product_groups_id',
'product_types_id' => 'Products.product_types_id',
'ProductTitles.code', 'ProductTitles.title',
'ean' => 'Products.ean',
'ncm' => 'Products.ncm',
'obs' => 'Products.obs',
'minimum' => 'Products.minimum',
'maximum' => 'Products.maximum',
'ProductTypes.id', 'ProductTypes.code',
'ProductTypes.title',
'ProductTypes.calc_cost',
'ProductGroups.id', 'ProductGroups.code',
'ProductGroups.title',
'ProductTitles' => '1'
])
->join([
'Products' => ['table' => 'products',
'type' => 'LEFT',
'conditions' => 'ProductTitles.products_id = Products.id'
],
'ProductGroups' => ['table' => 'product_groups',
'type' => 'LEFT',
'conditions' => 'Products.product_groups_id = ProductGroups.id'
],
'ProductTypes' => ['table' => 'product_types',
'type' => 'LEFT',
'conditions' => 'Products.product_types_id = ProductTypes.id'
]
]);
//Union these two tables and put some where conditions and ordanation:
$products = $qry_products->union($qry_productTitles)
->where($where)
->epilog('ORDER BY title_');
//->order(['title_ ASC']);
这是从 CakePHP ORM 生成的 SQL 结果：
'sql' => '
(SELECT Products.id AS `Products__id`,
null AS `product_titles_id`, Products.title AS `title_`,
Products.product_groups_id AS `Products__product_groups_id`,
Products.product_types_id AS `Products__product_types_id`,
Products.code AS `Products__code`,
Products.title AS `Products__title`,
Products.ean AS `Products__ean`,
Products.ncm AS `Products__ncm`,
Products.obs AS `Products__obs`,
Products.minimum AS `Products__minimum`,
Products.maximum AS `Products__maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`,
0 AS `ProductTitles`
FROM products Products
LEFT JOIN product_groups ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN product_types ProductTypes ON Products.product_types_id = ProductTypes.id
ORDER BY title_ LIMIT 20)
UNION
(SELECT Products.id AS `Products__id`,
ProductTitles.id AS `product_titles_id`,
ProductTitles.title AS `title_`,
Products.product_groups_id AS `product_groups_id`,
Products.product_types_id AS `product_types_id`,
ProductTitles.code AS `ProductTitles__code`,
ProductTitles.title AS `ProductTitles__title`,
Products.ean AS `ean`, Products.ncm AS `ncm`,
Products.obs AS `obs`, Products.minimum AS `minimum`,
Products.maximum AS `maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`,
1 AS `ProductTitles`
FROM product_titles ProductTitles
LEFT JOIN products Products ON ProductTitles.products_id = Products.id
LEFT JOIN product_groups ProductGroups ON Products.product_groups_id = ProductGroups.id
LEFT JOIN product_types ProductTypes ON Products.product_types_id = ProductTypes.id)
ORDER BY title_',
问题已使用以下代码解决：
$products_union = "((SELECT
Products.id AS `id`,
Products.product_groups_id,
Products.product_types_id,
Products.code AS `code`,
Products.title AS `title`,
Products.ean AS `ean`,
Products.ncm AS `ncm`,
Products.obs AS `obs`,
Products.minimum AS `minimum`,
Products.maximum AS `maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`
FROM `products` Products
LEFT JOIN `product_groups` ProductGroups
ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes
ON Products.product_types_id = ProductTypes.id)
UNION ALL
(SELECT
Products.id AS `id`,
Products.product_groups_id,
Products.product_types_id,
ProductTitles.code AS `code`,
ProductTitles.title AS `title`,
Products.ean AS `ean`,
Products.ncm AS `ncm`,
ProductTitles.obs AS `obs`,
Products.minimum AS `minimum`,
Products.maximum AS `maximum`,
ProductTypes.id AS `ProductTypes__id`,
ProductTypes.code AS `ProductTypes__code`,
ProductTypes.title AS `ProductTypes__title`,
ProductTypes.calc_cost AS `ProductTypes__calc_cost`,
ProductGroups.id AS `ProductGroups__id`,
ProductGroups.code AS `ProductGroups__code`,
ProductGroups.title AS `ProductGroups__title`
FROM `product_titles` ProductTitles
LEFT JOIN `products` Products
ON Products.id = ProductTitles.products_id
LEFT JOIN `product_groups` ProductGroups
ON Products.product_groups_id = ProductGroups.id
LEFT JOIN `product_types` ProductTypes
ON Products.product_types_id = ProductTypes.id
))";
$products = $this->Products->find('all')
->from([$this->Products->alias() => $products_union])
->contain(['ProductTypes', 'ProductGroups'])
->where($where)
->order(['Products.title']);
现在，'LIMIT' 和 'OFFSET' 在正确的位置。我仍然使用 3.4 CakePHP 版本。