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How to add item to List object in mongodb document with mongorepository?

How to use $all in MongoRepositoryQuery an element of an array with exactly matching fields MongoDB in JavaQueryin nested collections in mongodb using Spring MongoRepositoryHow to update particular field in mongo db by using MongoRepository Interface?Id field handling in Spring Data Mongo for child objectsSpring mongodb add or update a list of documentsDocument in MongoRepository not deleted with 'expireAfterSeconds'How to find the existing collection lists on spring boot mongorepository?Caused by: com.mongodb.MongoWriteException: E11000 duplicate key error collection: Blog.Posts index: id dup key: : null spring boot mongodb @dbref cascade not working

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0

This is my Post document schema in Spring Boot mongodb.

@Getter
@Setter
@Document(collection="Posts")
public class Post 

 @Id 
 private String _id;

 private String title;

 private String body; 

 private Date createdDate;

 private List<Tag> tags;

And I try to add tag object to List<Tag> tags field with MongoRepository<Post,String> interface. Below is my codes.

Optional<Post> optionalPost = postMongoRepository.findById(id);

if(optionalPost.isPresent()) 
 optionalPost.get().getTags().add(tag);

But optionalPost.get().getTags().add(tag) line does not work at all. How can I insert tag object to List<Tag> tags field with MongoRepository<Post, String> interface?

spring-mongodb mongorepository

share|improve this question

edited Apr 22 at 23:06

halfer

14.9k759120

asked Mar 24 at 0:03

Joseph HwangJoseph Hwang

4351926

add a comment | 

0

This is my Post document schema in Spring Boot mongodb.

@Getter
@Setter
@Document(collection="Posts")
public class Post 

 @Id 
 private String _id;

 private String title;

 private String body; 

 private Date createdDate;

 private List<Tag> tags;

And I try to add tag object to List<Tag> tags field with MongoRepository<Post,String> interface. Below is my codes.

Optional<Post> optionalPost = postMongoRepository.findById(id);

if(optionalPost.isPresent()) 
 optionalPost.get().getTags().add(tag);

But optionalPost.get().getTags().add(tag) line does not work at all. How can I insert tag object to List<Tag> tags field with MongoRepository<Post, String> interface?

spring-mongodb mongorepository

share|improve this question

edited Apr 22 at 23:06

halfer

14.9k759120

asked Mar 24 at 0:03

Joseph HwangJoseph Hwang

4351926

add a comment | 

This is my Post document schema in Spring Boot mongodb.

@Getter
@Setter
@Document(collection="Posts")
public class Post 

 @Id 
 private String _id;

 private String title;

 private String body; 

 private Date createdDate;

 private List<Tag> tags;

And I try to add tag object to List<Tag> tags field with MongoRepository<Post,String> interface. Below is my codes.

Optional<Post> optionalPost = postMongoRepository.findById(id);

if(optionalPost.isPresent()) 
 optionalPost.get().getTags().add(tag);

But optionalPost.get().getTags().add(tag) line does not work at all. How can I insert tag object to List<Tag> tags field with MongoRepository<Post, String> interface?

spring-mongodb mongorepository

share|improve this question

edited Apr 22 at 23:06

halfer

14.9k759120

asked Mar 24 at 0:03

Joseph HwangJoseph Hwang

4351926

@Getter
@Setter
@Document(collection="Posts")
public class Post 

 @Id 
 private String _id;

 private String title;

 private String body; 

 private Date createdDate;

 private List<Tag> tags;

Optional<Post> optionalPost = postMongoRepository.findById(id);

if(optionalPost.isPresent()) 
 optionalPost.get().getTags().add(tag);

share|improve this question

edited Apr 22 at 23:06

halfer

14.9k759120

asked Mar 24 at 0:03

Joseph HwangJoseph Hwang

4351926

share|improve this question

edited Apr 22 at 23:06

halfer

14.9k759120

asked Mar 24 at 0:03

Joseph HwangJoseph Hwang

4351926

edited Apr 22 at 23:06

halfer

14.9k759120

edited Apr 22 at 23:06

halfer

14.9k759120

asked Mar 24 at 0:03

Joseph HwangJoseph Hwang

4351926

asked Mar 24 at 0:03

Joseph HwangJoseph Hwang

4351926