* allow ordering using columns from object relationships, close#463
* validate table fields in nested insert
* add tests
* add docs
* change 'table_order_by' type from enums to ordered map
* remove unwanted code from 'Schema.hs' file
* 'AnnGObject' is not list of field name and value tuple
* update docs for new order_by type
* use 'InsOrdHashMap' for 'AnnGObj'
* handle empty fields in order_by
* remove '_' prefixes for asc/desc
* fix the changed order_by syntax across the repo
This PR re-writes the README for serverless triggers on Zeit Now. `zeit-serverless-docker` have been renamed to `zeit-now`. Echo and mutation examples for Go and NodeJS are added.
Foreign keys will now be detected if a column name is `<table_name>_id`.
Earlier, foreign keys would be detected when column name was `<table_name - s>_id`. This was a problem because it placed restrictions on table names. Such restrictions were limiting us from importing complicated JSON databases.
Here are the examples of JSON sampel data for a user, post and comment schema as per new and old conventions:
Old convention:
```
{
posts: [
{ id: 1, title: "Lorem Ipsum", views: 254, user_id: 123 },
{ id: 2, title: "Sic Dolor amet", views: 65, user_id: 456 },
],
users: [
{ id: 123, name: "John Doe" },
{ id: 456, name: "Jane Doe" }
],
comments: [
{ id: 987, post_id: 1, body: "Consectetur adipiscing elit" },
{ id: 995, post_id: 1, body: "Nam molestie pellentesque dui" }
]
}
```
New convention:
```
{
post: [
{ id: 1, title: "Lorem Ipsum", views: 254, user_id: 123 },
{ id: 2, title: "Sic Dolor amet", views: 65, user_id: 456 },
],
user: [
{ id: 123, name: "John Doe" },
{ id: 456, name: "Jane Doe" }
],
comment: [
{ id: 987, post_id: 1, body: "Consectetur adipiscing elit" },
{ id: 995, post_id: 1, body: "Nam molestie pellentesque dui" }
]
};
```
@FrediBach I am not sure how this would affect [Blowson](https://github.com/FrediBach/json-data-extender). Can you provide some input?
