diff --git a/src/Datagrid/Datagrid.php b/src/Datagrid/Datagrid.php
index 5316edd..d126846 100644
--- a/src/Datagrid/Datagrid.php
+++ b/src/Datagrid/Datagrid.php
@@ -189,6 +189,18 @@ public function hasActiveFilters(): bool
         return false;
     }
 
+    public function hasDisplayableFilters(): bool
+    {
+        foreach ($this->filters as $name => $filter) {
+            $showFilter = $filter->getOption('show_filter', null);
+            if (($filter->isActive() && null === $showFilter) || (true === $showFilter)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
     public function getQuery(): ProxyQueryInterface
     {
         return $this->query;
diff --git a/src/Datagrid/DatagridInterface.php b/src/Datagrid/DatagridInterface.php
index cd9f9a0..33662b2 100644
--- a/src/Datagrid/DatagridInterface.php
+++ b/src/Datagrid/DatagridInterface.php
@@ -50,4 +50,6 @@ public function hasFilter(string $name): bool;
     public function removeFilter(string $name): void;
 
     public function hasActiveFilters(): bool;
+
+    public function hasDisplayableFilters(): bool;
 }
diff --git a/src/Filter/BaseFilter.php b/src/Filter/BaseFilter.php
index 2f62338..7ec29f9 100644
--- a/src/Filter/BaseFilter.php
+++ b/src/Filter/BaseFilter.php
@@ -91,6 +91,20 @@ public function getFieldOptions(): array
         return $this->getOption('field_options', ['required' => false]);
     }
 
+    public function getFieldOption(string $name, $default = null)
+    {
+        if (isset($this->options['field_options'][$name]) && \is_array($this->options['field_options'])) {
+            return $this->options['field_options'][$name];
+        }
+
+        return $default;
+    }
+
+    public function setFieldOption(string $name, $value): void
+    {
+        $this->options['field_options'][$name] = $value;
+    }
+
     public function getLabel(): ?string
     {
         return $this->getOption('label');
@@ -112,6 +126,33 @@ public function getFieldName(): string
         return $fieldName;
     }
 
+    public function getParentAssociationMappings(): array
+    {
+        return $this->getOption('parent_association_mappings', []);
+    }
+
+    public function getFieldMapping(): array
+    {
+        $fieldMapping = $this->getOption('field_mapping');
+
+        if (!$fieldMapping) {
+            throw new \RuntimeException(sprintf('The option `field_mapping` must be set for field: `%s`', $this->getName()));
+        }
+
+        return $fieldMapping;
+    }
+
+    public function getAssociationMapping(): array
+    {
+        $associationMapping = $this->getOption('association_mapping');
+
+        if (!$associationMapping) {
+            throw new \RuntimeException(sprintf('The option `association_mapping` must be set for field: `%s`', $this->getName()));
+        }
+
+        return $associationMapping;
+    }
+
     public function setOptions(array $options): void
     {
         $this->options = array_merge($this->getDefaultOptions(), $options);
diff --git a/src/Filter/FilterFactoryInterface.php b/src/Filter/FilterFactoryInterface.php
index 1a6cde4..bd4561d 100644
--- a/src/Filter/FilterFactoryInterface.php
+++ b/src/Filter/FilterFactoryInterface.php
@@ -15,8 +15,5 @@
 
 interface FilterFactoryInterface
 {
-    /**
-     * @return mixed
-     */
-    public function create(string $name, string $type, array $options = []);
+    public function create(string $name, string $type, array $options = []): FilterInterface;
 }
diff --git a/src/Filter/FilterInterface.php b/src/Filter/FilterInterface.php
index 2cb3f57..5781919 100644
--- a/src/Filter/FilterInterface.php
+++ b/src/Filter/FilterInterface.php
@@ -58,8 +58,35 @@ public function initialize(string $name, array $options = []): void;
 
     public function getFieldName(): string;
 
+    /**
+     * @return array<string, string> array of mappings
+     */
+    public function getParentAssociationMappings(): array;
+
+    /**
+     * @return array<string, string> field mapping
+     */
+    public function getFieldMapping(): array;
+
+    /**
+     * @return array<string, string>  association mapping
+     */
+    public function getAssociationMapping(): array;
+
     public function getFieldOptions(): array;
 
+    /**
+     * @param mixed $default
+     *
+     * @return mixed
+     */
+    public function getFieldOption(string $name, $default = null);
+
+    /**
+     * @param mixed $value
+     */
+    public function setFieldOption(string $name, $value): void;
+
     public function getFieldType(): string;
 
     /**
diff --git a/src/ProxyQuery/BaseProxyQuery.php b/src/ProxyQuery/BaseProxyQuery.php
index 81147a3..f44d7b5 100644
--- a/src/ProxyQuery/BaseProxyQuery.php
+++ b/src/ProxyQuery/BaseProxyQuery.php
@@ -28,14 +28,24 @@ abstract class BaseProxyQuery implements ProxyQueryInterface
     protected $results = [];
 
     /**
-     * @var array
+     * @var int
      */
-    private $sortBy = [];
+    protected $uniqueParameterId = 0;
 
     /**
-     * @var array
+     * @var string[]
+     */
+    protected $entityJoinAliases = [];
+
+    /**
+     * @var string|null
+     */
+    private $sortBy;
+
+    /**
+     * @var string|null
      */
-    private $sortOrder = [];
+    private $sortOrder;
 
     /**
      * @var int|null
@@ -62,38 +72,27 @@ public function __call(string $name, array $args)
         return \call_user_func_array([$this->queryBuilder, $name], $args);
     }
 
-    /**
-     * @param mixed $sortBy
-     */
-    public function setSortBy($sortBy): ProxyQueryInterface
+    public function setSortBy(array $parentAssociationMappings, array $fieldMapping): ProxyQueryInterface
     {
-        $this->sortBy = $sortBy;
+        $alias = $this->entityJoin($parentAssociationMappings);
+        $this->sortBy = $alias.'.'.$fieldMapping['fieldName'];
 
         return $this;
     }
 
-    /**
-     * @return mixed
-     */
-    public function getSortBy()
+    public function getSortBy(): ?string
     {
         return $this->sortBy;
     }
 
-    /**
-     * @param mixed $sortOrder
-     */
-    public function setSortOrder($sortOrder): ProxyQueryInterface
+    public function setSortOrder(string $sortOrder): ProxyQueryInterface
     {
         $this->sortOrder = $sortOrder;
 
         return $this;
     }
 
-    /**
-     * @return mixed
-     */
-    public function getSortOrder()
+    public function getSortOrder(): ?string
     {
         return $this->sortOrder;
     }
@@ -122,10 +121,7 @@ public function getMaxResults(): ?int
         return $this->maxResults;
     }
 
-    /**
-     * @return mixed
-     */
-    public function getQueryBuilder()
+    public function getQueryBuilder(): QueryBuilder
     {
         return $this->queryBuilder;
     }
@@ -134,4 +130,44 @@ public function getResults(): array
     {
         return $this->results;
     }
+
+    public function getUniqueParameterId(): int
+    {
+        return $this->uniqueParameterId++;
+    }
+
+    public function entityJoin(array $associationMappings): string
+    {
+        $alias = current($this->queryBuilder->getRootAliases());
+
+        $newAlias = 's';
+
+        $joinedEntities = $this->queryBuilder->getDQLPart('join');
+
+        foreach ($associationMappings as $associationMapping) {
+            // Do not add left join to already joined entities with custom query
+            foreach ($joinedEntities as $joinExprList) {
+                foreach ($joinExprList as $joinExpr) {
+                    $newAliasTmp = $joinExpr->getAlias();
+
+                    if (sprintf('%s.%s', $alias, $associationMapping['fieldName']) === $joinExpr->getJoin()) {
+                        $this->entityJoinAliases[] = $newAliasTmp;
+                        $alias = $newAliasTmp;
+
+                        continue 3;
+                    }
+                }
+            }
+
+            $newAlias .= '_'.$associationMapping['fieldName'];
+            if (!\in_array($newAlias, $this->entityJoinAliases, true)) {
+                $this->entityJoinAliases[] = $newAlias;
+                $this->queryBuilder->leftJoin(sprintf('%s.%s', $alias, $associationMapping['fieldName']), $newAlias);
+            }
+
+            $alias = $newAlias;
+        }
+
+        return $alias;
+    }
 }
diff --git a/src/ProxyQuery/ProxyQueryInterface.php b/src/ProxyQuery/ProxyQueryInterface.php
index 394f3e6..6e02b8b 100644
--- a/src/ProxyQuery/ProxyQueryInterface.php
+++ b/src/ProxyQuery/ProxyQueryInterface.php
@@ -28,25 +28,13 @@ public function __call(string $name, array $args);
      */
     public function execute(array $params = [], ?int $hydrationMode = null);
 
-    /**
-     * @param mixed $sortBy
-     */
-    public function setSortBy($sortBy): self;
+    public function setSortBy(array $parentAssociationMappings, array $fieldMapping): self;
 
-    /**
-     * @return mixed
-     */
-    public function getSortBy();
+    public function getSortBy(): ?string;
 
-    /**
-     * @param mixed $sortOrder
-     */
-    public function setSortOrder($sortOrder): self;
+    public function setSortOrder(string $sortOrder): self;
 
-    /**
-     * @return mixed
-     */
-    public function getSortOrder();
+    public function getSortOrder(): ?string;
 
     public function setFirstResult(?int $firstResult): self;
 
@@ -57,4 +45,8 @@ public function setMaxResults(?int $maxResults): self;
     public function getMaxResults(): ?int;
 
     public function getResults(): array;
+
+    public function getUniqueParameterId(): int;
+
+    public function entityJoin(array $associationMappings): string;
 }