MongoDB Schema Design - Dealing with variations for a single schema
Say I have a mongoDB Collection which holds books: Some books have chapters, so a book collection consists of multiple chapters (and each chapter holds some text); Now say that some books do have chapters, but inside their chapters there are then subchapters; So in this case the actual text is contained in the subchapters. Yet other books don't have chapters at all (some literature for example): Here there is just a whole lot of text;
How could I design a MongoDB Schema book which holds chapters + texts in some cases, but chapters & subchapters + texts in others and no chapters at all in yet other cases?
The only solution I came up with so far is to create multiple schemas:
Pseudocode:
Book with chapters:
{
chapters: [Chapter], //array of chapters
}
Chapter:
{
text: text, (as string)
}
and then for the Books with Subchapters:
Book with subchapters:
{
chapters: [ChapterWithSubChapters],
}
ChapterWithSubchapters:
{
subchapters: [subchapter]
}
Subchapter:
{
text: text, (as string)
}
.. but this looks not very flexible to me.
PS: Sorry if I am using wrong terms here as to schema, collection, - I am not entirely sure and fairly new to the subject, as you can probably tell from my question.
json mongodb database-design nosql database-schema
asked Nov 19 '18 at 16:07
H. K.H. K.
12
add a comment |
Say I have a mongoDB Collection which holds books: Some books have chapters, so a book collection consists of multiple chapters (and each chapter holds some text); Now say that some books do have chapters, but inside their chapters there are then subchapters; So in this case the actual text is contained in the subchapters. Yet other books don't have chapters at all (some literature for example): Here there is just a whole lot of text;
How could I design a MongoDB Schema book which holds chapters + texts in some cases, but chapters & subchapters + texts in others and no chapters at all in yet other cases?
The only solution I came up with so far is to create multiple schemas:
Pseudocode:
Book with chapters:
{
chapters: [Chapter], //array of chapters
}
Chapter:
{
text: text, (as string)
}
and then for the Books with Subchapters:
Book with subchapters:
{
chapters: [ChapterWithSubChapters],
}
ChapterWithSubchapters:
{
subchapters: [subchapter]
}
Subchapter:
{
text: text, (as string)
}
.. but this looks not very flexible to me.
PS: Sorry if I am using wrong terms here as to schema, collection, - I am not entirely sure and fairly new to the subject, as you can probably tell from my question.
json mongodb database-design nosql database-schema
asked Nov 19 '18 at 16:07
H. K.H. K.
12
add a comment |
Say I have a mongoDB Collection which holds books: Some books have chapters, so a book collection consists of multiple chapters (and each chapter holds some text); Now say that some books do have chapters, but inside their chapters there are then subchapters; So in this case the actual text is contained in the subchapters. Yet other books don't have chapters at all (some literature for example): Here there is just a whole lot of text;
How could I design a MongoDB Schema book which holds chapters + texts in some cases, but chapters & subchapters + texts in others and no chapters at all in yet other cases?
The only solution I came up with so far is to create multiple schemas:
Pseudocode:
Book with chapters:
{
chapters: [Chapter], //array of chapters
}
Chapter:
{
text: text, (as string)
}
and then for the Books with Subchapters:
Book with subchapters:
{
chapters: [ChapterWithSubChapters],
}
ChapterWithSubchapters:
{
subchapters: [subchapter]
}
Subchapter:
{
text: text, (as string)
}
.. but this looks not very flexible to me.
PS: Sorry if I am using wrong terms here as to schema, collection, - I am not entirely sure and fairly new to the subject, as you can probably tell from my question.
json mongodb database-design nosql database-schema
asked Nov 19 '18 at 16:07
H. K.H. K.
12
Say I have a mongoDB Collection which holds books: Some books have chapters, so a book collection consists of multiple chapters (and each chapter holds some text); Now say that some books do have chapters, but inside their chapters there are then subchapters; So in this case the actual text is contained in the subchapters. Yet other books don't have chapters at all (some literature for example): Here there is just a whole lot of text;
How could I design a MongoDB Schema book which holds chapters + texts in some cases, but chapters & subchapters + texts in others and no chapters at all in yet other cases?
The only solution I came up with so far is to create multiple schemas:
Pseudocode:
Book with chapters:
{
chapters: [Chapter], //array of chapters
}
Chapter:
{
text: text, (as string)
}
and then for the Books with Subchapters:
Book with subchapters:
{
chapters: [ChapterWithSubChapters],
}
ChapterWithSubchapters:
{
subchapters: [subchapter]
}
Subchapter:
{
text: text, (as string)
}
.. but this looks not very flexible to me.
PS: Sorry if I am using wrong terms here as to schema, collection, - I am not entirely sure and fairly new to the subject, as you can probably tell from my question.
json mongodb database-design nosql database-schema
json mongodb database-design nosql database-schema
asked Nov 19 '18 at 16:07
H. K.H. K.
12
asked Nov 19 '18 at 16:07
H. K.H. K.
12
asked Nov 19 '18 at 16:07
H. K.H. K.
12
asked Nov 19 '18 at 16:07
H. K.H. K.
12
asked Nov 19 '18 at 16:07
H. K.H. K.
12
12
add a comment |
add a comment |
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