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vendor/league/csv/src/Plugin/ColumnConsistencyValidator.php

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+<?php
+/**
+* This file is part of the League.csv library
+*
+* @license http://opensource.org/licenses/MIT
+* @link https://github.com/thephpleague/csv/
+* @version 8.2.3
+* @package League.csv
+*
+* For the full copyright and license information, please view the LICENSE
+* file that was distributed with this source code.
+*/
+namespace League\Csv\Plugin;
+
+use InvalidArgumentException;
+
+/**
+ *  A class to manage column consistency on data insertion into a CSV
+ *
+ * @package League.csv
+ * @since  7.0.0
+ *
+ */
+class ColumnConsistencyValidator
+{
+    /**
+     * The number of column per row
+     *
+     * @var int
+     */
+    private $columns_count = -1;
+
+    /**
+     * should the class detect the column count based the inserted row
+     *
+     * @var bool
+     */
+    private $detect_columns_count = false;
+
+    /**
+     * Set Inserted row column count
+     *
+     * @param int $value
+     *
+     * @throws InvalidArgumentException If $value is lesser than -1
+     *
+     */
+    public function setColumnsCount($value)
+    {
+        if (false === filter_var($value, FILTER_VALIDATE_INT, ['options' => ['min_range' => -1]])) {
+            throw new InvalidArgumentException('the column count must an integer greater or equals to -1');
+        }
+        $this->detect_columns_count = false;
+        $this->columns_count = $value;
+    }
+
+    /**
+     * Column count getter
+     *
+     * @return int
+     */
+    public function getColumnsCount()
+    {
+        return $this->columns_count;
+    }
+
+    /**
+     * The method will set the $columns_count property according to the next inserted row
+     * and therefore will also validate the next line whatever length it has no matter
+     * the current $columns_count property value.
+     *
+     */
+    public function autodetectColumnsCount()
+    {
+        $this->detect_columns_count = true;
+    }
+
+    /**
+     * Is the submitted row valid
+     *
+     * @param array $row
+     *
+     * @return bool
+     */
+    public function __invoke(array $row)
+    {
+        if ($this->detect_columns_count) {
+            $this->columns_count = count($row);
+            $this->detect_columns_count = false;
+
+            return true;
+        }
+
+        if (-1 == $this->columns_count) {
+            return true;
+        }
+
+        return count($row) === $this->columns_count;
+    }
+}

vendor/league/csv/src/Plugin/ForbiddenNullValuesValidator.php

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+<?php
+/**
+* This file is part of the League.csv library
+*
+* @license http://opensource.org/licenses/MIT
+* @link https://github.com/thephpleague/csv/
+* @version 8.2.3
+* @package League.csv
+*
+* For the full copyright and license information, please view the LICENSE
+* file that was distributed with this source code.
+*/
+namespace League\Csv\Plugin;
+
+/**
+ *  A class to validate null value handling on data insertion into a CSV
+ *
+ * @package League.csv
+ * @since  7.0.0
+ *
+ */
+class ForbiddenNullValuesValidator
+{
+    /**
+     * Is the submitted row valid
+     *
+     * @param array $row
+     *
+     * @return bool
+     */
+    public function __invoke(array $row)
+    {
+        $res = array_filter($row, function ($value) {
+            return null === $value;
+        });
+
+        return !$res;
+    }
+}

vendor/league/csv/src/Plugin/SkipNullValuesFormatter.php

@@ -0,0 +1,37 @@
+<?php
+/**
+* This file is part of the League.csv library
+*
+* @license http://opensource.org/licenses/MIT
+* @link https://github.com/thephpleague/csv/
+* @version 8.2.3
+* @package League.csv
+*
+* For the full copyright and license information, please view the LICENSE
+* file that was distributed with this source code.
+*/
+namespace League\Csv\Plugin;
+
+/**
+ *  A class to remove null value from data before insertion into a CSV
+ *
+ * @package League.csv
+ * @since  7.0.0
+ *
+ */
+class SkipNullValuesFormatter
+{
+    /**
+     * remove null value form the submitted array
+     *
+     * @param array $row
+     *
+     * @return array
+     */
+    public function __invoke(array $row)
+    {
+        return array_filter($row, function ($value) {
+            return null !== $value;
+        });
+    }
+}