Added FieldsQueryMapper

Pre-processes the input for fields filters.

Author: Bertrand Dunogier

src/GraphQL/InputMapper/FieldsQueryMapper.php

@@ -0,0 +1,100 @@
+<?php
+namespace EzSystems\EzPlatformGraphQL\GraphQL\InputMapper;
+
+use eZ\Publish\API\Repository\Values\Content\Query;
+use EzSystems\EzPlatformGraphQL\GraphQL\DataLoader\ContentTypeLoader;
+use GraphQL\Error\UserError;
+use InvalidArgumentException;
+
+/**
+ * Pre-processes the input to change fields passed using their identifier to the Field input key.
+ */
+class FieldsQueryMapper implements QueryMapper
+{
+    /**
+     * @var QueryMapper
+     */
+    private $innerMapper;
+    /**
+     * @var ContentTypeLoader
+     */
+    private $contentTypeLoader;
+
+    public function __construct(ContentTypeLoader $contentTypeLoader, QueryMapper $innerMapper)
+    {
+        $this->innerMapper = $innerMapper;
+        $this->contentTypeLoader = $contentTypeLoader;
+    }
+
+    /**
+     * @param array $inputArray
+     * @return \eZ\Publish\API\Repository\Values\Content\Query
+     */
+    public function mapInputToQuery(array $inputArray)
+    {
+        if (isset($inputArray['ContentTypeIdentifier'])) {
+            $contentType = $this->contentTypeLoader->loadByIdentifier($inputArray['ContentTypeIdentifier']);
+            $fieldsArgument = [];
+
+            foreach ($inputArray as $argument => $value) {
+                if (($fieldDefinition = $contentType->getFieldDefinition($argument)) === null) {
+                    continue;
+                }
+
+                if (!$fieldDefinition->isSearchable) {
+                    continue;
+                }
+
+                $fieldFilter = $this->buildFieldFilter($argument, $value);
+                if ($fieldFilter !== null) {
+                    $fieldsArgument[] = $fieldFilter;
+                }
+            }
+
+            $queryArg['Fields'] = $fieldsArgument;
+        }
+
+        return $this->innerMapper->mapInputToQuery($inputArray);
+    }
+
+    private function buildFieldFilter($fieldDefinitionIdentifier, $value)
+    {
+        if (is_array($value) && count($value) === 1) {
+            $value = $value[0];
+        }
+        $operator = 'eq';
+
+        // @todo if 3 items, and first item is 'between', use next two items as value
+        if (is_array($value)) {
+            $operator = 'in';
+        } else if (is_string($value)) {
+            if ($value[0] === '~') {
+                $operator = 'like';
+                $value = substr($value, 1);
+                if (strpos($value, '%') === false) {
+                    $value = "%$value%";
+                }
+            } elseif ($value[0] === '<') {
+                $value = substr($value, 1);
+                if ($value[0] === '=') {
+                    $operator = 'lte';
+                    $value = substr($value, 2);
+                } else {
+                    $operator = 'lt';
+                    $value = substr($value, 1);
+                }
+            } elseif ($value[0] === '<') {
+                $value = substr($value, 1);
+                if ($value[0] === '=') {
+                    $operator = 'gte';
+                    $value = substr($value, 2);
+                } else {
+                    $operator = 'gt';
+                    $value = substr($value, 1);
+                }
+            }
+        }
+
+        return ['target' => $fieldDefinitionIdentifier, $operator => trim($value)];
+    }
+}

src/GraphQL/InputMapper/QueryMapper.php

@@ -0,0 +1,18 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: bdunogier
+ * Date: 07/04/2019
+ * Time: 00:07
+ */
+
+namespace EzSystems\EzPlatformGraphQL\GraphQL\InputMapper;
+
+interface QueryMapper
+{
+    /**
+     * @param array $inputArray
+     * @return \eZ\Publish\API\Repository\Values\Content\Query
+     */
+    public function mapInputToQuery(array $inputArray);
+}

src/GraphQL/InputMapper/SearchQueryMapper.php

@@ -5,7 +5,7 @@
 use GraphQL\Error\UserError;
 use InvalidArgumentException;
 
-class SearchQueryMapper
+class SearchQueryMapper implements QueryMapper
 {
     /**
      * @param array $inputArray

src/Resources/config/services/search.yml

@@ -1,4 +1,9 @@
 services:
+    _defaults:
+        autoconfigure: true
+        autowire: true
+        public: false
+
     EzSystems\EzPlatformGraphQL\DependencyInjection\Factory\SearchFeaturesFactory:
         arguments:
             $configurationProvider: '@ezpublish.api.repository_configuration_provider'
@@ -13,4 +18,7 @@ services:
         arguments:
             $converterRegistry: '@ezpublish.persistence.legacy.field_value_converter.registry'
 
-    EzSystems\EzPlatformGraphQL\Search\SolrSearchFeatures: ~
+    EzSystems\EzPlatformGraphQL\GraphQL\InputMapper\FieldsQueryMapper:
+        decorates: EzSystems\EzPlatformGraphQL\GraphQL\InputMapper\SearchQueryMapper
+        arguments:
+            $innerMapper: EzSystems\EzPlatformGraphQL\GraphQL\InputMapper\FieldsQueryMapper./inner