这个文件是所有字段的数据库ID信息，然后来到了Blade，我想在同一个面板中输入一个ID信息，我发送了我的脸。
class DataGrid extends DataSet
{
protected $fields = array();
/** @var Column[] */
public $columns = array();
public $headers = array();
public $rows = array();
public $output = "";
public $attributes = array("class" => "table");
public $checkbox_form = false;
protected $row_callable = array();
/**
* @param string $name
* @param string $label
* @param bool $orderby
*
* @return Column
*/
public function add($name, $label = null, $orderby = false)
{
$column = new Column($name, $label, $orderby);
$this->columns[$column->name] = $column;
if (!in_array($name,array("_edit"))) {
$this->headers[] = $label;
}
if ($orderby) {
$this->addOrderBy($column->orderby_field);
}
return $column;
}
//todo: like "field" for DataForm, should be nice to work with "cell" as instance and "row" as collection of cells
public function build($view = '')
{
($view == '') and $view = 'rapyd::datagrid';
parent::build();
Persistence::save();
foreach ($this->data as $tablerow) {
$row = new Row($tablerow);
foreach ($this->columns as $column) {
$cell = new Cell($column->name);
$sanitize = (count($column->filters) || $column->cell_callable) ? false : true;
$value = $this->getCellValue($column, $tablerow, $sanitize);
$cell->value($value);
$cell->parseFilters($column->filters);
if ($column->cell_callable) {
$callable = $column->cell_callable;
$cell->value($callable($cell->value, $tablerow));
}
$row->add($cell);
}
if (count($this->row_callable)) {
foreach ($this->row_callable as $callable) {
$callable($row);
}
}
$this->rows[] = $row;
}
$routeParamters = \Route::current()->parameters();
return \View::make($view, array('dg' => $this, 'buttons'=>$this->button_container, 'label'=>$this->label,
'current_entity' => $routeParamters['entity']));
}
public function buildCSV($file = '', $timestamp = '', $sanitize = true,$del = array())
{
$this->limit = null;
parent::build();
$segments = \Request::segments();
$filename = ($file != '') ? basename($file, '.csv') : end($segments);
$filename = preg_replace('/[^0-9a-z\._-]/i', '',$filename);
$filename .= ($timestamp != "") ? date($timestamp).".csv" : ".csv";
$save = (bool) strpos($file,"/");
//Delimiter
$delimiter = array();
$delimiter['delimiter'] = isset($del['delimiter']) ? $del['delimiter'] : ';';
$delimiter['enclosure'] = isset($del['enclosure']) ? $del['enclosure'] : '"';
$delimiter['line_ending'] = isset($del['line_ending']) ? $del['line_ending'] : "\n";
if ($save) {
$handle = fopen(public_path().'/'.dirname($file)."/".$filename, 'w');
} else {
$headers = array(
'Content-Type' => 'text/csv',
'Pragma'=>'no-cache',
'"Cache-Control' => 'must-revalidate, post-check=0, pre-check=0',
'Content-Disposition' => 'attachment; filename="' . $filename.'"');
$handle = fopen('php://output', 'w');
ob_start();
}
fputs($handle, $delimiter['enclosure'].implode($delimiter['enclosure'].$delimiter['delimiter'].$delimiter['enclosure'], $this->headers) .$delimiter['enclosure'].$delimiter['line_ending']);
foreach ($this->data as $tablerow) {
$row = new Row($tablerow);
foreach ($this->columns as $column) {
if (in_array($column->name,array("_edit")))
continue;
$cell = new Cell($column->name);
$value = str_replace('"', '""',str_replace(PHP_EOL, '', strip_tags($this->getCellValue($column, $tablerow, $sanitize))));
$cell->value($value);
$row->add($cell);
}
if (count($this->row_callable)) {
foreach ($this->row_callable as $callable) {
$callable($row);
}
}
fputs($handle, $delimiter['enclosure'] . implode($delimiter['enclosure'].$delimiter['delimiter'].$delimiter['enclosure'], $row->toArray()) . $delimiter['enclosure'].$delimiter['line_ending']);
}
fclose($handle);
if ($save) {
//redirect, boolean or filename?
} else {
$output = ob_get_clean();
return \Response::make(rtrim($output, "\n"), 200, $headers);
}
}
protected function getCellValue($column, $tablerow, $sanitize = true)
{
//blade
if (strpos($column->name, '{{') !== false ||
strpos($column->name, '{!!') !== false) {
if (is_object($tablerow) && method_exists($tablerow, "getAttributes")) {
$fields = $tablerow->getAttributes();
$relations = $tablerow->getRelations();
$array = array_merge($fields, $relations) ;
$array['row'] = $tablerow;
} else {
$array = (array) $tablerow;
}
$value = $this->parser->compileString($column->name, $array);
//eager loading smart syntax relation.field
} elseif (preg_match('#^[a-z0-9_-]+(?:\.[a-z0-9_-]+)+$#i',$column->name, $matches) && is_object($tablerow) ) {
//switch to blade and god bless eloquent
$_relation = '$'.trim(str_replace('.','->', $column->name));
$expression = '{{ isset('. $_relation .') ? ' . $_relation . ' : "" }}';
$fields = $tablerow->getAttributes();
$relations = $tablerow->getRelations();
$array = array_merge($fields, $relations) ;
$value = $this->parser->compileString($expression, $array);
//fieldname in a collection
} elseif (is_object($tablerow)) {
$value = @$tablerow->{$column->name};
if ($sanitize) {
$value = $this->sanitize($value);
}
//fieldname in an array
} elseif (is_array($tablerow) && isset($tablerow[$column->name])) {
$value = $tablerow[$column->name];
//none found, cell will have the column name
} else {
$value = $column->name;
}
//decorators, should be moved in another method
if ($column->link) {
if (is_object($tablerow) && method_exists($tablerow, "getAttributes")) {
$array = $tablerow->getAttributes();
$array['row'] = $tablerow;
} else {
$array = (array) $tablerow;
}
$value = '<a href="'.$this->parser->compileString($column->link, $array).'">'.$value.'</a>';
}
if (count($column->actions)>0) {
$key = ($column->key != '') ? $column->key : $this->key;
$keyvalue = @$tablerow->{$key};
$routeParamters = \Route::current()->parameters();
$value = \View::make('rapyd::datagrid.actions', array('uri' => $column->uri, 'id' => $keyvalue, 'actions' => $column->actions,
'current_entity' => $routeParamters['entity']));
}
return $value;
}
public function getGrid($view = '')
{
$this->output = $this->build($view)->render();
return $this->output;
}
public function __toString()
{
if ($this->output == "") {
//to avoid the error "toString() must not throw an exception"
//http://stackoverflow.com/questions/2429642/why-its-impossible-to-throw-exception-from-tostring/27307132#27307132
try {
$this->getGrid();
}
catch (\Exception $e) {
$previousHandler = set_exception_handler(function (){ });
restore_error_handler();
call_user_func($previousHandler, $e);
die;
}
}
return $this->output;
}
public function edit($uri, $label='Edit', $actions='show|modify|delete', $key = '')
{
return $this->add('_edit', $label)->actions($uri, explode('|', $actions))->key($key);
}
public function getColumn($column_name)
{
if (isset($this->columns[$column_name])) {
return $this->columns[$column_name];
}
}
public function addActions($uri, $label='Edit', $actions='show|modify|delete', $key = '')
{
return $this->edit($uri, $label, $actions, $key);
}
public function row(\Closure $callable)
{
$this->row_callable[] = $callable;
return $this;
}
protected function sanitize($string)
{
$result = nl2br(htmlspecialchars($string));
return Config::get('rapyd.sanitize.num_characters') > 0 ? str_limit($result, Config::get('rapyd.sanitize.num_characters')) : $result;
}
public function rowCount()
{
return count($this->rows);
}
}
答案 0 :(得分：0)
这是一个rapyd-laravel小部件/包的来源，而不是自定义代码。
根据DataGrid / DataSet文档，您可以使用许多来源：
https://github.com/zofe/rapyd-laravel/wiki/DataSet
DataSet / DataGrid是演示者，您可以使用
检索数据源的所有数据 分别为 {{ $item->field }} or {{ $row->field }}