From dc1a26b10ca1c227972b58a969825635db6e13f8 Mon Sep 17 00:00:00 2001
From: Alexey Antonov <alexwizp@gmail.com>
Date: Fri, 13 Dec 2019 10:41:51 +0300
Subject: [PATCH] Kibana 7.0.0 URL field formatter doesn't render relative
 hyperlinks properly (#52874)

Closes #35235
---
 src/legacy/ui/public/field_editor/field_editor.js      | 3 +--
 src/plugins/data/common/field_formats/field_format.ts  | 4 ++++
 src/plugins/data/public/index_patterns/fields/field.ts | 3 ++-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/legacy/ui/public/field_editor/field_editor.js b/src/legacy/ui/public/field_editor/field_editor.js
index f3c5990caae64..130d969e5cd02 100644
--- a/src/legacy/ui/public/field_editor/field_editor.js
+++ b/src/legacy/ui/public/field_editor/field_editor.js
@@ -689,7 +689,6 @@ export class FieldEditor extends PureComponent {
   }
 
   saveField = async () => {
-    const fieldFormat = this.state.field.format;
     const field = this.state.field.toActualField();
     const { indexPattern } = this.props;
     const { fieldFormatId } = this.state;
@@ -727,7 +726,7 @@ export class FieldEditor extends PureComponent {
     if (!fieldFormatId) {
       indexPattern.fieldFormatMap[field.name] = undefined;
     } else {
-      indexPattern.fieldFormatMap[field.name] = fieldFormat;
+      indexPattern.fieldFormatMap[field.name] = field.format;
     }
 
     return indexPattern.save()
diff --git a/src/plugins/data/common/field_formats/field_format.ts b/src/plugins/data/common/field_formats/field_format.ts
index dd445a33f21c5..85d276767b5a7 100644
--- a/src/plugins/data/common/field_formats/field_format.ts
+++ b/src/plugins/data/common/field_formats/field_format.ts
@@ -194,6 +194,10 @@ export abstract class FieldFormat {
       [HTML_CONTEXT_TYPE]: htmlContentTypeSetup(this, this.htmlConvert),
     };
   }
+
+  static isInstanceOfFieldFormat(fieldFormat: any): fieldFormat is FieldFormat {
+    return Boolean(fieldFormat && fieldFormat.convert);
+  }
 }
 
 export type IFieldFormat = PublicMethodsOf<FieldFormat>;
diff --git a/src/plugins/data/public/index_patterns/fields/field.ts b/src/plugins/data/public/index_patterns/fields/field.ts
index c8c8ac1ffd321..6ed3c2be8f96e 100644
--- a/src/plugins/data/public/index_patterns/fields/field.ts
+++ b/src/plugins/data/public/index_patterns/fields/field.ts
@@ -94,7 +94,8 @@ export class Field implements IFieldType {
     if (!type) type = getKbnFieldType('unknown');
 
     let format = spec.format;
-    if (!format || !(format instanceof FieldFormat)) {
+
+    if (!FieldFormat.isInstanceOfFieldFormat(format)) {
       const fieldFormats = getFieldFormats();
 
       format =