dcat-admin2/src/Grid/Column/HasDisplayers.php

<?php

namespace Dcat\Admin\Grid\Column;

use Dcat\Admin\Admin;
use Dcat\Admin\Grid;
use Dcat\Admin\Grid\Column;
use Dcat\Admin\Grid\Displayers\AbstractDisplayer;
use Dcat\Admin\Support\Helper;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Support\Arr;
use Illuminate\Support\Collection;

/**
 * @property Grid $grid
 */
trait HasDisplayers
{
    /**
     * Display using display abstract.
     *
     * @param string $abstract
     * @param array  $arguments
     *
     * @return Column
     */
    public function displayUsing($abstract, $arguments = [])
    {
        $grid = $this->grid;

        $column = $this;

        return $this->display(function ($value) use ($grid, $column, $abstract, $arguments) {
            /** @var AbstractDisplayer $displayer */
            $displayer = new $abstract($value, $grid, $column, $this);

            return $displayer->display(...$arguments);
        });
    }

    /**
     * Display column using array value map.
     *
     * @param array $values
     * @param null  $default
     *
     * @return $this
     */
    public function using(array $values, $default = null)
    {
        return $this->display(function ($value) use ($values, $default) {
            if (is_null($value)) {
                return $default;
            }

            return Arr::get($values, $value, $default);
        });
    }

    /**
     * @param string $color
     *
     * @return $this
     */
    public function bold($color = null)
    {
        $color = $color ?: Admin::color()->dark80();

        return $this->display(function ($value) use ($color) {
            if (! $value) {
                return $value;
            }

            return "<b style='color: {$color}'>$value</b>";
        });
    }

    /**
     * Display column with "long2ip".
     *
     * @param null $default
     *
     * @return $this
     */
    public function long2ip($default = null)
    {
        return $this->display(function ($value) use ($default) {
            if (! $value) {
                return $default;
            }

            return long2ip($value);
        });
    }

    /**
     * Render this column with the given view.
     *
     * @param string $view
     *
     * @return $this
     */
    public function view($view)
    {
        $name = $this->name;

        return $this->display(function ($value) use ($view, $name) {
            $model = $this;

            return view($view, compact('model', 'value', 'name'))->render();
        });
    }

    /**
     * @param string $val
     *
     * @return $this
     */
    public function prepend($val)
    {
        return $this->display(function ($v) use (&$val) {
            if (is_array($v)) {
                array_unshift($v, $val);

                return $v;
            } elseif ($v instanceof Collection) {
                return $v->prepend($val);
            }

            return $val.$v;
        });
    }

    /**
     * @param string $val
     *
     * @return $this
     */
    public function append($val)
    {
        return $this->display(function ($v) use (&$val) {
            if (is_array($v)) {
                array_push($v, $val);

                return $v;
            } elseif ($v instanceof Collection) {
                return $v->push($val);
            }

            return $v.$val;
        });
    }

    /**
     * Split a string by string.
     *
     * @param string $d
     *
     * @return $this
     */
    public function explode(string $d = ',')
    {
        return $this->display(function ($v) use ($d) {
            if (is_array($v) || $v instanceof Arrayable) {
                return $v;
            }

            return $v ? explode($d, $v) : [];
        });
    }

    /**
     * Display the fields in the email format as gavatar.
     *
     * @param int $size
     *
     * @return $this
     */
    public function gravatar($size = 30)
    {
        return $this->display(function ($value) use ($size) {
            $src = sprintf(
                'https://www.gravatar.com/avatar/%s?s=%d',
                md5(strtolower($value)),
                $size
            );

            return "<img src='$src' class='img img-circle'/>";
        });
    }

    /**
     * Limit the number of characters in a string, or the number of element in a array.
     *
     * @param int    $limit
     * @param string $end
     *
     * @return $this
     */
    public function limit($limit = 100, $end = '...')
    {
        return $this->display(function ($value) use ($limit, $end) {
            if ($value !== null && ! is_scalar($value)) {
                $value = Helper::array($value);

                if (count($value) <= $limit) {
                    return $value;
                }

                $value = array_slice($value, 0, $limit);

                array_push($value, $end);

                return $value;
            }

            if (mb_strlen($value, 'UTF-8') <= $limit) {
                return $value;
            }

            return mb_substr($value, 0, $limit).$end;
        });
    }

    /**
     * @return $this
     */
    public function emptyString()
    {
        return $this->display('');
    }

    /**
     * Show children of current node.
     *
     * @param bool $showAll
     * @param bool $sortable
     *
     * @return $this
     */
    public function tree(bool $showAll = false, bool $sortable = true)
    {
        $this->grid->model()->enableTree($showAll, $sortable);

        $this->grid->fetching(function () use ($showAll) {
            if ($this->grid->model()->getParentIdFromRequest()) {
                $this->grid->disableFilter();
                $this->grid->disableToolbar();

                if ($showAll) {
                    $this->grid->disablePagination();
                }
            }
        });

        return $this->displayUsing(Grid\Displayers\Tree::class);
    }
}