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<?php
namespace ModStart\Grid;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Database\Query\Builder;
use Illuminate\Pagination\AbstractPaginator;
use Illuminate\Support\Collection;
use ModStart\Field\AbstractField;
use ModStart\Repository\Repository;
/**
* @mixin Builder
*/
class Model
{
/**
* @var Grid
*/
private $grid;
/**
* @var Repository
*/
private $repository;
/**
* @var AbstractPaginator
*/
private $paginator;
/**
* Array of queries of the model.
*
* @var \Illuminate\Support\Collection
*/
private $queries;
/**
* Sort parameters of the model.
*
* @var array
*/
private $order;
/**
* @var Collection
*/
private $data;
/**
* @var callable
*/
private $builder;
/**
* 每页显示数量
*
* @var int
*/
private $pageSize = 10;
/**
* @var string
*/
private $pageName = 'page';
/**
* @var int
*/
private $page;
/**
* If the model use pagination.
*
* @var bool
*/
private $usePaginate = true;
/**
* The query string variable used to store the per-page.
*
* @var string
*/
private $pageSizeName = 'pageSize';
/**
* The query string variable used to store the order.
*
* @var string
*/
private $orderName = 'order';
/**
* Model constructor.
* @param $grid
* @param null $repository
*/
public function __construct($grid, $repository = null)
{
$this->grid = $grid;
if ($repository) {
$this->repository = Repository::instance($repository);
}
$this->queries = new Collection();
}
/**
* @return Repository|null
*/
public function repository()
{
return $this->repository;
}
/**
* @return $this
*/
public function clearQuery()
{
if (!$this->queries->isEmpty()) {
$this->queries = new Collection();
}
return $this;
}
/**
* @return Collection
*/
public function getQueries()
{
return $this->queries = $this->queries->unique();
}
/**
* @return AbstractPaginator
* @throws \Exception
*/
public function paginator()
{
$this->buildData();
return $this->paginator;
}
/**
* Enable or disable pagination.
*
* @param bool $use
*/
public function usePaginate($use = true)
{
$this->usePaginate = $use;
}
/**
* @return bool
*/
public function allowPagination()
{
return $this->usePaginate;
}
/**
* Get the query string variable used to store the per-page.
*
* @return string
*/
public function getPageSizeName()
{
return $this->pageSizeName;
}
/**
* Set the query string variable used to store the per-page.
*
* @param string $name
*
* @return $this
*/
public function setPageSizeName($name)
{
$this->pageSizeName = $name;
return $this;
}
/**
* @param int $pageSize
* @return $this
*/
public function setPageSize(int $pageSize)
{
$this->pageSize = $pageSize;
return $this;
}
/**
* @param string $pageName
* @return $this
*/
public function setPageName(string $pageName)
{
$this->pageName = $pageName;
return $this;
}
/**
* @return string
*/
public function getPageName()
{
return $this->pageName;
}
/**
* Get the query string variable used to store the order.
*
* @return string
*/
public function getOrderName()
{
return $this->orderName;
}
/**
* Get parent gird instance.
*
* @return Grid
*/
public function grid()
{
return $this->grid;
}
/**
* @return Collection
* @throws \Exception
*/
public function buildData()
{
if (is_null($this->data)) {
$this->setData($this->fetch());
}
return $this->data;
}
/**
* @param Collection|callable|array|AbstractPaginator $data
*
* @return $this
*/
public function setData($data)
{
if (is_callable($data)) {
$this->builder = $data;
return $this;
}
if ($data instanceof AbstractPaginator) {
$this->setPaginator($data);
$data = $data->items();
} elseif (is_array($data)) {
$data = collect($data);
} elseif ($data instanceof Collection) {
} elseif ($data instanceof Arrayable) {
$data = collect($data->toArray());
}
if ($data instanceof Collection) {
$this->data = $data;
} else {
$this->data = collect();
}
//$this->stdObjToArray($this->data);
return $this;
}
/**
* Add conditions to grid model.
*
* @param array $conditions
*
* @return $this
*/
public function addConditions(array $conditions)
{
foreach ($conditions as $condition) {
call_user_func_array([$this, key($condition)], current($condition));
}
return $this;
}
public function getConditionQuery()
{
return $this->repository->getQuery($this);
}
/**
* @return Collection|array
* @throws \Exception
*
*/
private function fetch()
{
// print_r($this->getQueries()->toArray());exit();
if ($this->paginator) {
return $this->paginator->getCollection();
}
if ($this->builder && is_callable($this->builder)) {
$results = call_user_func($this->builder, $this);
} else {
$results = $this->repository->get($this);
}
if (is_array($results) || $results instanceof Collection) {
return $results;
}
if ($results instanceof AbstractPaginator) {
$this->setPaginator($results);
return $results->items();
}
throw new \Exception('Grid fetch error');
}
/**
* @param AbstractPaginator $paginator
*
* @return void
*/
private function setPaginator(AbstractPaginator $paginator)
{
$this->paginator = $paginator;
$paginator->setPageName($this->pageName);
}
/**
* Get current page.
*
* @return int|null
*/
public function getPage()
{
if (!$this->usePaginate) {
return;
}
return $this->page = $this->repository->getArgument($this->pageName, 1);
}
/**
* @param int $page
*/
public function setPage(int $page)
{
$this->page = $page;
return $this;
}
/**
* Get items number of per page.
*
* @return int|null
*/
public function getPageSize()
{
if (!$this->usePaginate) {
return;
}
return $this->repository->getArgument('pageSize', $this->pageSize);
}
/**
* Find query by method name.
*
* @param $method
*
* @return static
*/
public function findQueryByMethod($method)
{
return $this->queries->first(function ($query) use ($method) {
return $query['method'] == $method;
});
}
/**
* 设定排序信息
*
* @param array $order
* 单列 [ name',desc' ]
* 多列 [ [name1,asc], [name2,desc] ]
*/
public function setOrder($order)
{
$this->order = $order;
}
/**
* 获取排序信息
*
* @return array
* 单列 [ name',desc' ]
* 多列 [ [name1,asc], [name2,desc] ]
*/
public function getOrder()
{
$order = $this->repository->getArgument('order', []);
$orderDefault = $this->repository->getArgument('orderDefault', []);
// print_r($order);print_r($orderDefault);print_r($this->order);exit();
if (empty($order)) {
if (!empty($orderDefault)) {
if (is_array($orderDefault[0])) {
$this->order = $orderDefault;
} else {
$this->order = [$orderDefault];
}
} else {
$this->order = [[$this->repository->getKeyName(), 'desc']];
}
} else {
/** @var Collection $sortableColumns */
$sortableColumns = $this->grid->sortableFields()->map(function (AbstractField $field) {
return $field->column();
});
if (!is_array($order[0])) {
$order = [$order];
}
$order = collect($order)->filter(function ($item) use ($sortableColumns) {
return is_array($item) && count($item) === 2 && is_string($item[0]) && is_string($item[1]) && $sortableColumns->contains($item[0]);
})->map(function ($item) {
$item[1] = strtolower($item[1]);
return $item;
})->filter(function ($item) {
return in_array($item[1], ['asc', 'desc']);
});
$this->order = $order->toArray();
}
return $this->order;
}
/**
* @param string|array $method
*
* @return void
*/
public function rejectQuery($method)
{
$this->queries = $this->queries->reject(function ($query) use ($method) {
if (is_callable($method)) {
return call_user_func($method, $query);
}
return in_array($query['method'], (array)$method, true);
});
}
/**
* Reset orderBy query.
*
* @return void
*/
public function resetOrderBy()
{
$this->rejectQuery(['orderBy', 'orderByDesc']);
}
/**
* @param string $method
* @param array $arguments
*
* @return $this
*/
public function __call($method, $arguments)
{
return $this->addQuery($method, $arguments);
}
/**
* @param string $method
* @param array $arguments
*
* @return $this
*/
public function addQuery($method, array $arguments = [])
{
$this->queries->push([
'method' => $method,
'arguments' => $arguments,
]);
return $this;
}
}