add nova

nova/src/Query/Search/Column.php

@@ -0,0 +1,89 @@
+<?php
+
+namespace Laravel\Nova\Query\Search;
+
+use Illuminate\Database\Query\Expression;
+
+class Column
+{
+    /**
+     * The search column.
+     *
+     * @var \Illuminate\Database\Query\Expression|string
+     */
+    public $column;
+
+    /**
+     * Construct a new search.
+     *
+     * @param  \Illuminate\Database\Query\Expression|string  $column
+     * @return void
+     */
+    public function __construct($column)
+    {
+        $this->column = $column;
+    }
+
+    /**
+     * Create Column instance for raw expression value.
+     *
+     * @param  string  $column
+     * @return mixed
+     */
+    public static function raw($column)
+    {
+        return new static(new Expression($column));
+    }
+
+    /**
+     * Create Column instance from raw expression or fluent string.
+     *
+     * @param  \Illuminate\Database\Query\Expression|string  $column
+     * @return mixed
+     */
+    public static function from($column)
+    {
+        if ($column instanceof Expression) {
+            return new static($column);
+        }
+
+        if (strpos($column, '->') !== false) {
+            return new SearchableJson($column);
+        } elseif (strpos($column, '.') !== false) {
+            [$relation, $columnName] = explode('.', $column, 2);
+
+            return new SearchableRelation($relation, $columnName);
+        }
+
+        return new static($column);
+    }
+
+    /**
+     * Apply the search.
+     *
+     * @param  \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Eloquent\Relations\Relation  $query
+     * @param  string  $search
+     * @param  string  $connectionType
+     * @param  string  $whereOperator
+     * @return \Illuminate\Database\Eloquent\Builder
+     */
+    public function __invoke($query, $search, string $connectionType, string $whereOperator = 'orWhere')
+    {
+        return $query->{$whereOperator}(
+            $this->columnName($query),
+            $connectionType == 'pgsql' ? 'ilike' : 'like',
+            "%{$search}%"
+        );
+    }
+
+    /**
+     * Get the column name.
+     *
+     * @param  \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Eloquent\Relations\Relation  $query
+     * @return string
+     */
+    protected function columnName($query)
+    {
+        return $this->column instanceof Expression ? $this->column : $query->qualifyColumn($this->column);
+    }
+}