Mixing
how to implement a sort_order for many-to-many relationship
I have a course to modules many-to-many relationship, A course can contain any number of modules and modules can be in any number of courses:
Tables
Course
id
name
rel_course_to_module
course_id
module_id
module
id
name
How do I implement a course specific module sort_odering so a module within one course appears first and in another, it appears last? I am using Spring JPA with Hibernate,
java database spring hibernate
edited Nov 21 '18 at 19:00
andand
11.3k93869
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
add a comment |
I have a course to modules many-to-many relationship, A course can contain any number of modules and modules can be in any number of courses:
Tables
Course
id
name
rel_course_to_module
course_id
module_id
module
id
name
How do I implement a course specific module sort_odering so a module within one course appears first and in another, it appears last? I am using Spring JPA with Hibernate,
java database spring hibernate
edited Nov 21 '18 at 19:00
andand
11.3k93869
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
add a comment |
I have a course to modules many-to-many relationship, A course can contain any number of modules and modules can be in any number of courses:
Tables
Course
id
name
rel_course_to_module
course_id
module_id
module
id
name
How do I implement a course specific module sort_odering so a module within one course appears first and in another, it appears last? I am using Spring JPA with Hibernate,
java database spring hibernate
edited Nov 21 '18 at 19:00
andand
11.3k93869
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
I have a course to modules many-to-many relationship, A course can contain any number of modules and modules can be in any number of courses:
Tables
Course
id
name
rel_course_to_module
course_id
module_id
module
id
name
How do I implement a course specific module sort_odering so a module within one course appears first and in another, it appears last? I am using Spring JPA with Hibernate,
java database spring hibernate
java database spring hibernate
edited Nov 21 '18 at 19:00
andand
11.3k93869
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
edited Nov 21 '18 at 19:00
andand
11.3k93869
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
edited Nov 21 '18 at 19:00
andand
11.3k93869
edited Nov 21 '18 at 19:00
andand
11.3k93869
edited Nov 21 '18 at 19:00
andand
11.3k93869
11.3k93869
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
asked Nov 21 '18 at 17:19
Parthiban ManickamParthiban Manickam
775
775
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can you spring data jpa with hibernate.
You can follow this documentation: spring data jpa. Course and Module Entity relation will be many-to-many relation.
here you can create a interface for repository and from this interface you can find Module by courseId
your code will be like this
public interface CourseDAO extends JpaRepository<Course, Integer> {
public List<Course> findByIdOrderByNameAsc();
}
Here inside Course Entity you have to declare List modules. Here is a good example like your problem.
And for last part that you ask : You can create a priority column to your mapping table and implement your business logic that you want.
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
Hi flopcoder, thanks for your reply, I have done the rest,and I was not pretty sure about the last part, which is the priority or order column and how to map it in the business logic is in question.
– Parthiban Manickam
Nov 22 '18 at 10:01
found what I was looking for in here codejava.net/frameworks/hibernate/…
– Parthiban Manickam
Nov 22 '18 at 13:48
I also said that to you. to add a priority column to mapping table. :)
– flopcoder
Nov 22 '18 at 16:44
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can you spring data jpa with hibernate.
You can follow this documentation: spring data jpa. Course and Module Entity relation will be many-to-many relation.
here you can create a interface for repository and from this interface you can find Module by courseId
your code will be like this
public interface CourseDAO extends JpaRepository<Course, Integer> {
public List<Course> findByIdOrderByNameAsc();
}
Here inside Course Entity you have to declare List modules. Here is a good example like your problem.
And for last part that you ask : You can create a priority column to your mapping table and implement your business logic that you want.
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
Hi flopcoder, thanks for your reply, I have done the rest,and I was not pretty sure about the last part, which is the priority or order column and how to map it in the business logic is in question.
– Parthiban Manickam
Nov 22 '18 at 10:01
found what I was looking for in here codejava.net/frameworks/hibernate/…
– Parthiban Manickam
Nov 22 '18 at 13:48
I also said that to you. to add a priority column to mapping table. :)
– flopcoder
Nov 22 '18 at 16:44
add a comment |
You can you spring data jpa with hibernate.
You can follow this documentation: spring data jpa. Course and Module Entity relation will be many-to-many relation.
here you can create a interface for repository and from this interface you can find Module by courseId
your code will be like this
public interface CourseDAO extends JpaRepository<Course, Integer> {
public List<Course> findByIdOrderByNameAsc();
}
Here inside Course Entity you have to declare List modules. Here is a good example like your problem.
And for last part that you ask : You can create a priority column to your mapping table and implement your business logic that you want.
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
Hi flopcoder, thanks for your reply, I have done the rest,and I was not pretty sure about the last part, which is the priority or order column and how to map it in the business logic is in question.
– Parthiban Manickam
Nov 22 '18 at 10:01
found what I was looking for in here codejava.net/frameworks/hibernate/…
– Parthiban Manickam
Nov 22 '18 at 13:48
I also said that to you. to add a priority column to mapping table. :)
– flopcoder
Nov 22 '18 at 16:44
add a comment |
You can you spring data jpa with hibernate.
You can follow this documentation: spring data jpa. Course and Module Entity relation will be many-to-many relation.
here you can create a interface for repository and from this interface you can find Module by courseId
your code will be like this
public interface CourseDAO extends JpaRepository<Course, Integer> {
public List<Course> findByIdOrderByNameAsc();
}
Here inside Course Entity you have to declare List modules. Here is a good example like your problem.
And for last part that you ask : You can create a priority column to your mapping table and implement your business logic that you want.
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
You can you spring data jpa with hibernate.
You can follow this documentation: spring data jpa. Course and Module Entity relation will be many-to-many relation.
here you can create a interface for repository and from this interface you can find Module by courseId
your code will be like this
public interface CourseDAO extends JpaRepository<Course, Integer> {
public List<Course> findByIdOrderByNameAsc();
}
Here inside Course Entity you have to declare List modules. Here is a good example like your problem.
And for last part that you ask : You can create a priority column to your mapping table and implement your business logic that you want.
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
edited Nov 21 '18 at 17:46
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
answered Nov 21 '18 at 17:32
flopcoderflopcoder
745512
745512
Hi flopcoder, thanks for your reply, I have done the rest,and I was not pretty sure about the last part, which is the priority or order column and how to map it in the business logic is in question.
– Parthiban Manickam
Nov 22 '18 at 10:01
found what I was looking for in here codejava.net/frameworks/hibernate/…
– Parthiban Manickam
Nov 22 '18 at 13:48
I also said that to you. to add a priority column to mapping table. :)
– flopcoder
Nov 22 '18 at 16:44
add a comment |
Hi flopcoder, thanks for your reply, I have done the rest,and I was not pretty sure about the last part, which is the priority or order column and how to map it in the business logic is in question.
– Parthiban Manickam
Nov 22 '18 at 10:01
found what I was looking for in here codejava.net/frameworks/hibernate/…
– Parthiban Manickam
Nov 22 '18 at 13:48
I also said that to you. to add a priority column to mapping table. :)
– flopcoder
Nov 22 '18 at 16:44
Hi flopcoder, thanks for your reply, I have done the rest,and I was not pretty sure about the last part, which is the priority or order column and how to map it in the business logic is in question.
– Parthiban Manickam
Nov 22 '18 at 10:01
Hi flopcoder, thanks for your reply, I have done the rest,and I was not pretty sure about the last part, which is the priority or order column and how to map it in the business logic is in question.
– Parthiban Manickam
Nov 22 '18 at 10:01
found what I was looking for in here codejava.net/frameworks/hibernate/…
– Parthiban Manickam
Nov 22 '18 at 13:48
found what I was looking for in here codejava.net/frameworks/hibernate/…
– Parthiban Manickam
Nov 22 '18 at 13:48
I also said that to you. to add a priority column to mapping table. :)
– flopcoder
Nov 22 '18 at 16:44
I also said that to you. to add a priority column to mapping table. :)
– flopcoder
Nov 22 '18 at 16:44
add a comment |
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