Hibernate ManyToMany fails populate join table
I have two tables: Task and User. I use ManyToMany relationship. I thought when save Task object with list users my join table (task_user) will be populate. I was wrong. When I save task object it save in task table and nothing else. I think reason is my wrong approach to save object. I can fetch Task with users but i can't save it correctly. I search somethings about it but with no effect.
Task entity:
@ManyToMany(mappedBy="tasks")
private List<User> users = new ArrayList<>();
User entity:
@ManyToMany
@JoinTable(name="user_task",
joinColumns = {@JoinColumn(name="id_user")},
inverseJoinColumns = { @JoinColumn(name="id_task") })
private List<Task> tasks = new ArrayList<>();
Dao:
@Override
public void saveNewTask(Task newTask) {
getCurrentSession().save(newTask);
}
My object task:
newTask object: desc desc desc other field: 0
List with user inside: [User [id=1, name=Dawid Pawka, login=dpawka, password=dpawka], User [id=2, name=Adam Mickiewicz, login=amickiewicz, password=amickiewicz]]
Hibernate: insert into task (date, description, hour, time, title) values (?, ?, ?, ?, ?)
my db model
spring hibernate
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
add a comment |
I have two tables: Task and User. I use ManyToMany relationship. I thought when save Task object with list users my join table (task_user) will be populate. I was wrong. When I save task object it save in task table and nothing else. I think reason is my wrong approach to save object. I can fetch Task with users but i can't save it correctly. I search somethings about it but with no effect.
Task entity:
@ManyToMany(mappedBy="tasks")
private List<User> users = new ArrayList<>();
User entity:
@ManyToMany
@JoinTable(name="user_task",
joinColumns = {@JoinColumn(name="id_user")},
inverseJoinColumns = { @JoinColumn(name="id_task") })
private List<Task> tasks = new ArrayList<>();
Dao:
@Override
public void saveNewTask(Task newTask) {
getCurrentSession().save(newTask);
}
My object task:
newTask object: desc desc desc other field: 0
List with user inside: [User [id=1, name=Dawid Pawka, login=dpawka, password=dpawka], User [id=2, name=Adam Mickiewicz, login=amickiewicz, password=amickiewicz]]
Hibernate: insert into task (date, description, hour, time, title) values (?, ?, ?, ?, ?)
my db model
spring hibernate
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
add a comment |
I have two tables: Task and User. I use ManyToMany relationship. I thought when save Task object with list users my join table (task_user) will be populate. I was wrong. When I save task object it save in task table and nothing else. I think reason is my wrong approach to save object. I can fetch Task with users but i can't save it correctly. I search somethings about it but with no effect.
Task entity:
@ManyToMany(mappedBy="tasks")
private List<User> users = new ArrayList<>();
User entity:
@ManyToMany
@JoinTable(name="user_task",
joinColumns = {@JoinColumn(name="id_user")},
inverseJoinColumns = { @JoinColumn(name="id_task") })
private List<Task> tasks = new ArrayList<>();
Dao:
@Override
public void saveNewTask(Task newTask) {
getCurrentSession().save(newTask);
}
My object task:
newTask object: desc desc desc other field: 0
List with user inside: [User [id=1, name=Dawid Pawka, login=dpawka, password=dpawka], User [id=2, name=Adam Mickiewicz, login=amickiewicz, password=amickiewicz]]
Hibernate: insert into task (date, description, hour, time, title) values (?, ?, ?, ?, ?)
my db model
spring hibernate
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
I have two tables: Task and User. I use ManyToMany relationship. I thought when save Task object with list users my join table (task_user) will be populate. I was wrong. When I save task object it save in task table and nothing else. I think reason is my wrong approach to save object. I can fetch Task with users but i can't save it correctly. I search somethings about it but with no effect.
Task entity:
@ManyToMany(mappedBy="tasks")
private List<User> users = new ArrayList<>();
User entity:
@ManyToMany
@JoinTable(name="user_task",
joinColumns = {@JoinColumn(name="id_user")},
inverseJoinColumns = { @JoinColumn(name="id_task") })
private List<Task> tasks = new ArrayList<>();
Dao:
@Override
public void saveNewTask(Task newTask) {
getCurrentSession().save(newTask);
}
My object task:
newTask object: desc desc desc other field: 0
List with user inside: [User [id=1, name=Dawid Pawka, login=dpawka, password=dpawka], User [id=2, name=Adam Mickiewicz, login=amickiewicz, password=amickiewicz]]
Hibernate: insert into task (date, description, hour, time, title) values (?, ?, ?, ?, ?)
my db model
spring hibernate
spring hibernate
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
asked Nov 26 '18 at 14:24
Dawid PawkaDawid Pawka
11
11
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53483174%2fhibernate-manytomany-fails-populate-join-table%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53483174%2fhibernate-manytomany-fails-populate-join-table%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
