Does TypeOrm automatically assign foreign keys on insert?
I am curious if I am doing something wrong. I have entities defined with OneToMany relationships. They are:
Category
CategoryItem
with Category being the top level and OneToMany relationships between CategoryItem.
When creating new records I do:
const newCategory: Category = new Category();
newCategory.name = 'Bob'
newCategory.items = ;
const newItem: CategoryItem = new CategoryItem();
newItem.someField = 'whatever';
newCategory.items.push(newItem);
Now, when I go to save these items, if I just do:
(note: entities in the below code is a getManager() call result)
await entities.save(category)
Then the category is saved, but the categoryItems are not saved. (aren't they supposed to be)?
If I do
await entities.save(category);
for(const item of category.items)
await entities.save(item);
Then I get an error saying cannot insert null into categoryId field for the CategoryItem records. In order for it to save correctly, I find I have to do this:
await entities.save(category);
for(const item of category.items)
item.categoryId = category.categoryId;
await entities.save(item);
only then will it save.
This is not what I expected to happen. I expected that the child items would be saved, and have their foreign key fields automatically matched up.
Am I wrong in this expectation? If not, any thoughts on what I might be doing wrong?
typeorm
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
add a comment |
I am curious if I am doing something wrong. I have entities defined with OneToMany relationships. They are:
Category
CategoryItem
with Category being the top level and OneToMany relationships between CategoryItem.
When creating new records I do:
const newCategory: Category = new Category();
newCategory.name = 'Bob'
newCategory.items = ;
const newItem: CategoryItem = new CategoryItem();
newItem.someField = 'whatever';
newCategory.items.push(newItem);
Now, when I go to save these items, if I just do:
(note: entities in the below code is a getManager() call result)
await entities.save(category)
Then the category is saved, but the categoryItems are not saved. (aren't they supposed to be)?
If I do
await entities.save(category);
for(const item of category.items)
await entities.save(item);
Then I get an error saying cannot insert null into categoryId field for the CategoryItem records. In order for it to save correctly, I find I have to do this:
await entities.save(category);
for(const item of category.items)
item.categoryId = category.categoryId;
await entities.save(item);
only then will it save.
This is not what I expected to happen. I expected that the child items would be saved, and have their foreign key fields automatically matched up.
Am I wrong in this expectation? If not, any thoughts on what I might be doing wrong?
typeorm
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
add a comment |
I am curious if I am doing something wrong. I have entities defined with OneToMany relationships. They are:
Category
CategoryItem
with Category being the top level and OneToMany relationships between CategoryItem.
When creating new records I do:
const newCategory: Category = new Category();
newCategory.name = 'Bob'
newCategory.items = ;
const newItem: CategoryItem = new CategoryItem();
newItem.someField = 'whatever';
newCategory.items.push(newItem);
Now, when I go to save these items, if I just do:
(note: entities in the below code is a getManager() call result)
await entities.save(category)
Then the category is saved, but the categoryItems are not saved. (aren't they supposed to be)?
If I do
await entities.save(category);
for(const item of category.items)
await entities.save(item);
Then I get an error saying cannot insert null into categoryId field for the CategoryItem records. In order for it to save correctly, I find I have to do this:
await entities.save(category);
for(const item of category.items)
item.categoryId = category.categoryId;
await entities.save(item);
only then will it save.
This is not what I expected to happen. I expected that the child items would be saved, and have their foreign key fields automatically matched up.
Am I wrong in this expectation? If not, any thoughts on what I might be doing wrong?
typeorm
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
I am curious if I am doing something wrong. I have entities defined with OneToMany relationships. They are:
Category
CategoryItem
with Category being the top level and OneToMany relationships between CategoryItem.
When creating new records I do:
const newCategory: Category = new Category();
newCategory.name = 'Bob'
newCategory.items = ;
const newItem: CategoryItem = new CategoryItem();
newItem.someField = 'whatever';
newCategory.items.push(newItem);
Now, when I go to save these items, if I just do:
(note: entities in the below code is a getManager() call result)
await entities.save(category)
Then the category is saved, but the categoryItems are not saved. (aren't they supposed to be)?
If I do
await entities.save(category);
for(const item of category.items)
await entities.save(item);
Then I get an error saying cannot insert null into categoryId field for the CategoryItem records. In order for it to save correctly, I find I have to do this:
await entities.save(category);
for(const item of category.items)
item.categoryId = category.categoryId;
await entities.save(item);
only then will it save.
This is not what I expected to happen. I expected that the child items would be saved, and have their foreign key fields automatically matched up.
Am I wrong in this expectation? If not, any thoughts on what I might be doing wrong?
typeorm
typeorm
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
asked Nov 13 '18 at 14:41
Clever HumanClever Human
6,12524465
6,12524465
add a comment |
add a comment |
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