Make json objects in database searchable

lib/Controller/ObjectsController.php

@@ -33,7 +33,7 @@ public function __construct(
 
     /**
      * Returns the template of the main app's page
-     * 
+     *
      * This method renders the main page of the application, adding any necessary data to the template.
      *
      * @NoAdminRequired
@@ -42,17 +42,17 @@ public function __construct(
      * @return TemplateResponse The rendered template response
      */
     public function page(): TemplateResponse
-    {           
+    {
         return new TemplateResponse(
             'openconnector',
             'index',
             []
         );
     }
-    
+
     /**
      * Retrieves a list of all objects
-     * 
+     *
      * This method returns a JSON response containing an array of all objects in the system.
      *
      * @NoAdminRequired
@@ -69,12 +69,12 @@ public function index(ObjectService $objectService, SearchService $searchService
         $searchConditions = $searchService->createMySQLSearchConditions(filters: $filters, fieldsToSearch:  $fieldsToSearch);
         $filters = $searchService->unsetSpecialQueryParams(filters: $filters);
 
-        return new JSONResponse(['results' => $this->objectEntityMapper->findAll(limit: null, offset: null, filters: $filters, searchConditions: $searchConditions, searchParams: $searchParams)]);
+        return new JSONResponse(['results' => $this->objectEntityMapper->findAll(filters: $filters, searchConditions: $searchConditions, searchParams: $searchParams)]);
     }
 
     /**
      * Retrieves a single object by its ID
-     * 
+     *
      * This method returns a JSON response containing the details of a specific object.
      *
      * @NoAdminRequired
@@ -94,7 +94,7 @@ public function show(string $id): JSONResponse
 
     /**
      * Creates a new object
-     * 
+     *
      * This method creates a new object based on POST data.
      *
      * @NoAdminRequired
@@ -111,17 +111,17 @@ public function create(): JSONResponse
                 unset($data[$key]);
             }
         }
-        
+
         if (isset($data['id'])) {
             unset($data['id']);
         }
-        
+
         return new JSONResponse($this->objectEntityMapper->createFromArray(object: $data));
     }
 
     /**
      * Updates an existing object
-     * 
+     *
      * This method updates an existing object based on its ID.
      *
      * @NoAdminRequired
@@ -147,7 +147,7 @@ public function update(int $id): JSONResponse
 
     /**
      * Deletes an object
-     * 
+     *
      * This method deletes an object based on its ID.
      *
      * @NoAdminRequired
@@ -162,4 +162,4 @@ public function destroy(int $id): JSONResponse
 
         return new JSONResponse([]);
     }
-}
+}

lib/Db/ObjectEntity.php

@@ -60,14 +60,16 @@ public function hydrate(array $object): self
 
 	public function jsonSerialize(): array
 	{
-		return [
-			'id' => $this->id,
-			'uuid' => $this->uuid,
-			'register' => $this->register,
-			'schema' => $this->schema,
-			'object' => $this->object,
-			'updated' => isset($this->updated) ? $this->updated->format('c') : null,
-			'created' => isset($this->created) ? $this->created->format('c') : null
-		];
+//		return [
+//			'id' => $this->id,
+//			'uuid' => $this->uuid,
+//			'register' => $this->register,
+//			'schema' => $this->schema,
+//			'object' => $this->object,
+//			'updated' => isset($this->updated) ? $this->updated->format('c') : null,
+//			'created' => isset($this->created) ? $this->created->format('c') : null
+//		];
+
+		return $this->object;
 	}
 }

lib/Db/ObjectEntityMapper.php

@@ -2,9 +2,12 @@
 
 namespace OCA\OpenRegister\Db;
 
+use Doctrine\DBAL\Platforms\MySQLPlatform;
 use OCA\OpenRegister\Db\ObjectEntity;
 use OCA\OpenRegister\Db\Register;
 use OCA\OpenRegister\Db\Schema;
+use OCA\OpenRegister\Service\IDatabaseJsonService;
+use OCA\OpenRegister\Service\MySQLJsonService;
 use OCP\AppFramework\Db\Entity;
 use OCP\AppFramework\Db\QBMapper;
 use OCP\DB\QueryBuilder\IQueryBuilder;
@@ -13,9 +16,17 @@
 
 class ObjectEntityMapper extends QBMapper
 {
-	public function __construct(IDBConnection $db)
+	private IDatabaseJsonService $databaseJsonService;
+
+	public const MAIN_FILTERS = ['register', 'schema', 'uuid', 'created', 'updated'];
+
+	public function __construct(IDBConnection $db, MySQLJsonService $mySQLJsonService)
 	{
 		parent::__construct($db, 'openregister_objects');
+
+		if($db->getDatabasePlatform() instanceof MySQLPlatform === true) {
+			$this->databaseJsonService = $mySQLJsonService;
+		}
 	}
 
 	/**
@@ -89,6 +100,37 @@ public function findByRegisterAndSchema(string $register, string $schema): Objec
 		return $this->findEntities(query: $qb);
 	}
 
+	public function countAll(?array $filters = [], ?array $searchConditions = [], ?array $searchParams = []): int
+	{
+		$qb = $this->db->getQueryBuilder();
+
+		$qb->selectAlias(select: $qb->createFunction(call: 'count(id)'), alias: 'count')
+			->from(from: 'openregister_objects');
+		foreach ($filters as $filter => $value) {
+			if ($value === 'IS NOT NULL' && in_array(needle: $filter, haystack: self::MAIN_FILTERS) === true) {
+				$qb->andWhere($qb->expr()->isNotNull($filter));
+			} elseif ($value === 'IS NULL' && in_array(needle: $filter, haystack: self::MAIN_FILTERS) === true) {
+				$qb->andWhere($qb->expr()->isNull($filter));
+			} else if (in_array(needle: $filter, haystack: self::MAIN_FILTERS) === true) {
+				$qb->andWhere($qb->expr()->eq($filter, $qb->createNamedParameter($value)));
+			}
+		}
+
+		if (!empty($searchConditions)) {
+			$qb->andWhere('(' . implode(' OR ', $searchConditions) . ')');
+			foreach ($searchParams as $param => $value) {
+				$qb->setParameter($param, $value);
+			}
+		}
+		$qb = $this->databaseJsonService->filterJson($qb, $filters);
+
+		$result = $qb->executeQuery();
+
+		$count = $result->fetchAll()[0]['count'];
+
+		return $count;
+	}
+
 	/**
 	 * Find all ObjectEntitys
 	 *
@@ -109,11 +151,11 @@ public function findAll(?int $limit = null, ?int $offset = null, ?array $filters
 			->setFirstResult($offset);
 
         foreach ($filters as $filter => $value) {
-			if ($value === 'IS NOT NULL') {
+			if ($value === 'IS NOT NULL' && in_array(needle: $filter, haystack: self::MAIN_FILTERS) === true) {
 				$qb->andWhere($qb->expr()->isNotNull($filter));
-			} elseif ($value === 'IS NULL') {
+			} elseif ($value === 'IS NULL' && in_array(needle: $filter, haystack: self::MAIN_FILTERS) === true) {
 				$qb->andWhere($qb->expr()->isNull($filter));
-			} else {
+			} else if (in_array(needle: $filter, haystack: self::MAIN_FILTERS) === true) {
 				$qb->andWhere($qb->expr()->eq($filter, $qb->createNamedParameter($value)));
 			}
         }
@@ -124,6 +166,8 @@ public function findAll(?int $limit = null, ?int $offset = null, ?array $filters
                 $qb->setParameter($param, $value);
             }
         }
+		$qb = $this->databaseJsonService->filterJson($qb, $filters);
+
 
 		return $this->findEntities(query: $qb);
 	}
@@ -148,4 +192,36 @@ public function updateFromArray(int $id, array $object): ObjectEntity
 
 		return $this->update($obj);
 	}
+
+	public function getFacets(array $filters = [])
+	{
+		if(key_exists(key: 'register', array: $filters) === true) {
+			$register = $filters['register'];
+		}
+		if(key_exists(key: 'schema', array: $filters) === true) {
+			$schema = $filters['schema'];
+		}
+
+		$fields = [];
+		if(isset($filters['_queries'])) {
+			$fields = $filters['_queries'];
+		}
+
+		unset(
+			$filters['_fields'],
+			$filters['register'],
+			$filters['schema'],
+			$filters['created'],
+			$filters['updated'],
+			$filters['uuid']
+		);
+
+		return $this->databaseJsonService->getAggregations(
+			builder: $this->db->getQueryBuilder(),
+			fields: $fields,
+			register: $register,
+			schema: $schema,
+			filters: $filters
+		);
+	}
 }

lib/Service/IDatabaseJsonService.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace OCA\OpenRegister\Service;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+
+interface IDatabaseJsonService
+{
+	public function filterJson(IQueryBuilder $builder, array $filters): IQueryBuilder;
+	public function getAggregations(IQueryBuilder $builder, array $fields, int $register, int $schema, array $filters = []): array;
+}

lib/Service/MariaDBScripts/aggregations.sql

@@ -0,0 +1 @@
+(SELECT json_extract(object, '$.tooi') as gemeentecode, count(*) as count FROM nextcloud.oc_openregister_objects group by gemeentecode);

lib/Service/MariaDBScripts/filter_json.sql

@@ -0,0 +1 @@
+SELECT * FROM nextcloud.oc_openregister_objects where register = 1 and json_extract(object, '$.tooi') = 0935;

lib/Service/MySQLJsonService.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace OCA\OpenRegister\Service;
+
+use OCP\DB\Exception;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+
+class MySQLJsonService implements IDatabaseJsonService
+{
+	function filterJson(IQueryBuilder $builder, array $filters): IQueryBuilder
+	{
+		unset($filters['register'], $filters['schema'], $filters['updated'], $filters['created'], $filters['_queries']);
+
+		foreach($filters as $filter=>$value) {
+			$builder->createNamedParameter(value: $value, placeHolder: ":value$filter");
+			$builder->createNamedParameter(value: "$.$filter", placeHolder: ":path$filter");
+
+			$builder
+				->andWhere("json_extract(object, :path$filter) = :value$filter");
+		}
+
+		return $builder;
+	}
+
+	public function getAggregations(IQueryBuilder $builder, array $fields, int $register, int $schema, array $filters = []): array
+	{
+		$facets = [];
+
+		foreach($fields as $field) {
+			$builder->createNamedParameter(value: "$.$field", placeHolder: ":$field");
+
+
+			$builder
+				->selectAlias($builder->createFunction("json_unquote(json_extract(object, :$field))"), '_id')
+				->selectAlias($builder->createFunction("count(*)"), 'count')
+				->from('openregister_objects')
+				->where(
+					$builder->expr()->eq('register', $builder->createNamedParameter($register, IQueryBuilder::PARAM_INT)),
+					$builder->expr()->eq('schema', $builder->createNamedParameter($schema, IQueryBuilder::PARAM_INT)),
+				)
+				->groupBy('_id');
+
+			$builder = $this->filterJson($builder, $filters);
+
+			$result = $builder->executeQuery();
+			$facets[$field] = $result->fetchAll();
+
+			$builder->resetQueryParts();
+			$builder->setParameters([]);
+
+		}
+		return $facets;
+	}
+}