Files
postgrest/test/Feature/EmbedInnerJoinSpec.hs
T
3b83f536ca Correct inner join to use proper aliases (#1978)
"_" was used for all the internal json_agg aliases. Now an alias
with "_" plus a local table name is used.

Co-authored-by: Cole Arendt <cole.arendt@outlook.com>
2021-10-18 17:34:31 -05:00

281 lines
14 KiB
Haskell

module Feature.EmbedInnerJoinSpec where
import Network.Wai (Application)
import Test.Hspec
import Test.Hspec.Wai
import Test.Hspec.Wai.JSON
import Protolude hiding (get)
import SpecHelper
spec :: SpecWith ((), Application)
spec =
describe "Embedding with an inner join" $ do
context "many-to-one relationships" $ do
it "ignores null embeddings while the default left join doesn't" $ do
get "/projects?select=id,clients!inner(id)" `shouldRespondWith`
[json|[
{"id":1,"clients":{"id":1}}, {"id":2,"clients":{"id":1}},
{"id":3,"clients":{"id":2}}, {"id":4,"clients":{"id":2}}]|]
{ matchHeaders = [matchContentTypeJson] }
get "/projects?select=id,clients!left(id)" `shouldRespondWith`
[json|[
{"id":1,"clients":{"id":1}}, {"id":2,"clients":{"id":1}},
{"id":3,"clients":{"id":2}}, {"id":4,"clients":{"id":2}},
{"id":5,"clients":null}]|]
{ matchHeaders = [matchContentTypeJson] }
it "filters source tables when the embedded table is filtered" $ do
get "/projects?select=id,clients!inner(id)&clients.id=eq.1" `shouldRespondWith`
[json|[
{"id":1,"clients":{"id":1}},
{"id":2,"clients":{"id":1}}]|]
{ matchHeaders = [matchContentTypeJson] }
get "/projects?select=id,clients!inner(id)&clients.id=eq.2" `shouldRespondWith`
[json|[
{"id":3,"clients":{"id":2}},
{"id":4,"clients":{"id":2}}] |]
{ matchHeaders = [matchContentTypeJson] }
get "/projects?select=id,clients!inner(id)&clients.id=eq.0" `shouldRespondWith`
[json|[]|]
{ matchHeaders = [matchContentTypeJson] }
it "filters source tables when a two levels below embedded table is filtered" $ do
get "/tasks?select=id,projects!inner(id,clients!inner(id))&projects.clients.id=eq.1" `shouldRespondWith`
[json|[
{"id":1,"projects":{"id":1,"clients":{"id":1}}},
{"id":2,"projects":{"id":1,"clients":{"id":1}}},
{"id":3,"projects":{"id":2,"clients":{"id":1}}},
{"id":4,"projects":{"id":2,"clients":{"id":1}}}]|]
{ matchHeaders = [matchContentTypeJson] }
get "/tasks?select=id,projects!inner(id,clients!inner(id))&projects.clients.id=eq.2" `shouldRespondWith`
[json|[
{"id":5,"projects":{"id":3,"clients":{"id":2}}},
{"id":6,"projects":{"id":3,"clients":{"id":2}}},
{"id":7,"projects":{"id":4,"clients":{"id":2}}},
{"id":8,"projects":{"id":4,"clients":{"id":2}}}]|]
{ matchHeaders = [matchContentTypeJson] }
it "only affects the source table rows if his direct embedding is an inner join" $
get "/tasks?select=id,projects(id,clients!inner(id))&projects.clients.id=eq.2" `shouldRespondWith`
[json|[
{"id":1,"projects":null},
{"id":2,"projects":null},
{"id":3,"projects":null},
{"id":4,"projects":null},
{"id":5,"projects":{"id":3,"clients":{"id":2}}},
{"id":6,"projects":{"id":3,"clients":{"id":2}}},
{"id":7,"projects":{"id":4,"clients":{"id":2}}},
{"id":8,"projects":{"id":4,"clients":{"id":2}}}]|]
{ matchHeaders = [matchContentTypeJson] }
it "works with views" $
get "/books?select=title,authors!inner(name)&authors.name=eq.George%20Orwell" `shouldRespondWith`
[json| [{"title":"1984","authors":{"name":"George Orwell"}}] |]
{ matchHeaders = [matchContentTypeJson] }
context "one-to-many relationships" $ do
it "ignores empty array embeddings while the default left join doesn't" $ do
get "/entities?select=id,child_entities!inner(id)" `shouldRespondWith`
[json|[
{"id":1,"child_entities":[{"id":1}, {"id":2}, {"id":4}, {"id":5}]},
{"id":2,"child_entities":[{"id":3}, {"id":6}]}]|]
{ matchHeaders = [matchContentTypeJson] }
get "/entities?select=id,child_entities!left(id)" `shouldRespondWith`
[json| [
{"id":1,"child_entities":[{"id":1}, {"id":2}, {"id":4}, {"id":5}]},
{"id":2,"child_entities":[{"id":3}, {"id":6}]},
{"id":3,"child_entities":[]},
{"id":4,"child_entities":[]}] |]
{ matchHeaders = [matchContentTypeJson] }
it "filters source tables when the embedded table is filtered" $ do
get "/entities?select=id,child_entities!inner(id)&child_entities.id=eq.1" `shouldRespondWith`
[json|[{"id":1,"child_entities":[{"id":1}]}]|]
{ matchHeaders = [matchContentTypeJson] }
get "/entities?select=id,child_entities!inner(id)&child_entities.id=eq.3" `shouldRespondWith`
[json|[{"id":2,"child_entities":[{"id":3}]}]|]
{ matchHeaders = [matchContentTypeJson] }
get "/entities?select=id,child_entities!inner(id)&child_entities.id=eq.0" `shouldRespondWith`
[json|[]|]
{ matchHeaders = [matchContentTypeJson] }
it "filters source tables when a two levels below embedded table is filtered" $ do
get "/entities?select=id,child_entities!inner(id,grandchild_entities!inner(id))&child_entities.grandchild_entities.id=in.(1,5)"
`shouldRespondWith`
[json|[
{
"id": 1,
"child_entities": [
{ "id": 1, "grandchild_entities": [ { "id": 1 } ] },
{ "id": 2, "grandchild_entities": [ { "id": 5 } ] }]
}
]|]
{ matchHeaders = [matchContentTypeJson] }
get "/entities?select=id,child_entities!inner(id,grandchild_entities!inner(id))&child_entities.grandchild_entities.id=eq.2" `shouldRespondWith`
[json|[
{
"id": 1,
"child_entities": [
{ "id": 1, "grandchild_entities": [ { "id": 2 } ] } ]
}
]|]
{ matchHeaders = [matchContentTypeJson] }
it "only affects the source table rows if his direct embedding is an inner join" $
get "/entities?select=id,child_entities!inner(id,grandchild_entities(id))&child_entities.grandchild_entities.id=eq.2" `shouldRespondWith`
[json|[
{
"id": 1,
"child_entities": [
{ "id": 1, "grandchild_entities": [ { "id": 2 } ] },
{ "id": 2, "grandchild_entities": [] },
{ "id": 4, "grandchild_entities": [] },
{ "id": 5, "grandchild_entities": [] } ]
},
{
"id": 2,
"child_entities": [
{ "id": 3, "grandchild_entities": [] },
{ "id": 6, "grandchild_entities": [] } ]
}
]|]
{ matchHeaders = [matchContentTypeJson] }
it "works with views" $
get "/authors?select=*,books!inner(*)&books.title=eq.1984" `shouldRespondWith`
[json| [{"id":1,"name":"George Orwell","books":[{"id":1,"title":"1984","publication_year":1949,"author_id":1}]}] |]
{ matchHeaders = [matchContentTypeJson] }
context "many-to-many relationships" $ do
it "ignores empty array embeddings while the default left join doesn't" $ do
get "/products?select=id,suppliers!inner(id)" `shouldRespondWith`
[json| [
{"id":1,"suppliers":[{"id":1}, {"id":2}]},
{"id":2,"suppliers":[{"id":1}, {"id":3}]}] |]
{ matchHeaders = [matchContentTypeJson] }
get "/products?select=id,suppliers!left(id)" `shouldRespondWith`
[json| [
{"id":1,"suppliers":[{"id":1}, {"id":2}]},
{"id":2,"suppliers":[{"id":1}, {"id":3}]},
{"id":3,"suppliers":[]}] |]
{ matchHeaders = [matchContentTypeJson] }
it "filters source tables when the embedded table is filtered" $ do
get "/products?select=id,suppliers!inner(id)&suppliers.id=eq.2" `shouldRespondWith`
[json| [{"id":1,"suppliers":[{"id":2}]}] |]
{ matchHeaders = [matchContentTypeJson] }
get "/products?select=id,suppliers!inner(id)&suppliers.id=eq.3" `shouldRespondWith`
[json| [{"id":2,"suppliers":[{"id":3}]}] |]
{ matchHeaders = [matchContentTypeJson] }
get "/products?select=id,suppliers!inner(id)&suppliers.id=eq.0" `shouldRespondWith`
[json| [] |]
{ matchHeaders = [matchContentTypeJson] }
it "filters source tables when a two levels below embedded table is filtered" $ do
get "/products?select=id,suppliers!inner(id,trade_unions!inner(id))&suppliers.trade_unions.id=eq.3"
`shouldRespondWith`
[json|[{"id":1,"suppliers":[{"id":2,"trade_unions":[{"id":3}]}]}] |]
{ matchHeaders = [matchContentTypeJson] }
get "/products?select=id,suppliers!inner(id,trade_unions!inner(id))&suppliers.trade_unions.id=eq.4"
`shouldRespondWith`
[json|[{"id":1,"suppliers":[{"id":2,"trade_unions":[{"id":4}]}]}] |]
{ matchHeaders = [matchContentTypeJson] }
it "only affects the source table rows if his direct embedding is an inner join" $
get "/products?select=id,suppliers!inner(id,trade_unions(id))&suppliers.trade_unions.id=eq.3" `shouldRespondWith`
[json|[
{"id":1,"suppliers":[{"id":1,"trade_unions":[]}, {"id":2,"trade_unions":[{"id":3}]}]},
{"id":2,"suppliers":[{"id":1,"trade_unions":[]}, {"id":3,"trade_unions":[]}]}]|]
{ matchHeaders = [matchContentTypeJson] }
it "works with views" $ do
get "/actors?select=*,films!inner(*)&films.title=eq.douze%20commandements" `shouldRespondWith`
[json| [{"id":1,"name":"john","films":[{"id":12,"title":"douze commandements"}]}] |]
{ matchHeaders = [matchContentTypeJson] }
get "/films?select=*,actors!inner(*)&actors.name=eq.john" `shouldRespondWith`
[json| [{"id":12,"title":"douze commandements","actors":[{"id":1,"name":"john"}]}] |]
{ matchHeaders = [matchContentTypeJson] }
it "works with m2o and m2m relationships combined" $
get "/projects?select=name,clients!inner(name),users!inner(name)" `shouldRespondWith`
[json| [
{"name":"Windows 7","clients":{"name":"Microsoft"},"users":[{"name":"Angela Martin"}, {"name":"Dwight Schrute"}]},
{"name":"Windows 10","clients":{"name":"Microsoft"},"users":[{"name":"Angela Martin"}]},
{"name":"IOS","clients":{"name":"Apple"},"users":[{"name":"Michael Scott"}, {"name":"Dwight Schrute"}]},
{"name":"OSX","clients":{"name":"Apple"},"users":[{"name":"Michael Scott"}]}]|]
{ matchHeaders = [matchContentTypeJson] }
it "works with rpc" $
get "/rpc/getallprojects?select=id,clients!inner(id)&clients.id=eq.1" `shouldRespondWith`
[json| [{"id":1,"clients":{"id":1}}, {"id":2,"clients":{"id":1}}] |]
{ matchHeaders = [matchContentTypeJson] }
it "works when using hints" $ do
get "/projects?select=id,clients!client!inner(id)&clients.id=eq.2" `shouldRespondWith`
[json| [{"id":3,"clients":{"id":2}}, {"id":4,"clients":{"id":2}}] |]
{ matchHeaders = [matchContentTypeJson] }
get "/projects?select=id,client!inner(id)&client.id=eq.2" `shouldRespondWith`
[json| [{"id":3,"client":{"id":2}}, {"id":4,"client":{"id":2}}] |]
{ matchHeaders = [matchContentTypeJson] }
it "works with many one-to-many relationships" $ do
-- https://github.com/PostgREST/postgrest/issues/1977
get "/client?select=id,name,contact!inner(name),clientinfo!inner(other)" `shouldRespondWith`
[json|[
{"id":1,"name":"Walmart","contact":[{"name":"Wally Walton"}, {"name":"Wilma Wellers"}],"clientinfo":[{"other":"123 Main St"}]},
{"id":2,"name":"Target", "contact":[{"name":"Tabby Targo"}],"clientinfo":[{"other":"456 South 3rd St"}]},
{"id":3,"name":"Big Lots","contact":[{"name":"Bobby Bots"}, {"name":"Bonnie Bits"}, {"name":"Billy Boats"}],"clientinfo":[{"other":"789 Palm Tree Ln"}]}
]|]
{ matchHeaders = [matchContentTypeJson] }
get "/client?select=id,name,contact!inner(name),clientinfo!inner(other)&contact.name=eq.Wally%20Walton" `shouldRespondWith`
[json|[
{"id":1,"name":"Walmart","contact":[{"name":"Wally Walton"}],"clientinfo":[{"other":"123 Main St"}]}
]|]
{ matchHeaders = [matchContentTypeJson] }
get "/client?select=id,name,contact!inner(name),clientinfo!inner(other)&clientinfo.other=eq.456%20South%203rd%20St" `shouldRespondWith`
[json|[
{"id":2,"name":"Target","clientinfo":[{"other":"456 South 3rd St"}],"contact":[{"name":"Tabby Targo"}]}
]|]
{ matchHeaders = [matchContentTypeJson] }
notDefaultConfig :: SpecWith ((), Application)
notDefaultConfig =
describe "Embedding with a default inner join(db-embed-default-join = 'inner')" $ do
it "works on many-to-one relationships" $
get "/tasks?select=id,projects(id,clients(id))&projects.clients.id=eq.1" `shouldRespondWith`
[json|[
{"id":1,"projects":{"id":1,"clients":{"id":1}}},
{"id":2,"projects":{"id":1,"clients":{"id":1}}},
{"id":3,"projects":{"id":2,"clients":{"id":1}}},
{"id":4,"projects":{"id":2,"clients":{"id":1}}}]|]
{ matchHeaders = [matchContentTypeJson] }
it "works on one-to-many relationships" $
get "/entities?select=id,child_entities(id,grandchild_entities(id))&child_entities.grandchild_entities.id=in.(1,5)"
`shouldRespondWith`
[json|[
{
"id": 1,
"child_entities": [
{ "id": 1, "grandchild_entities": [ { "id": 1 } ] },
{ "id": 2, "grandchild_entities": [ { "id": 5 } ] }]
}
]|]
{ matchHeaders = [matchContentTypeJson] }
it "works on many-to-many relationships" $
get "/products?select=id,suppliers(id,trade_unions(id))&suppliers.trade_unions.id=eq.3"
`shouldRespondWith`
[json|[{"id":1,"suppliers":[{"id":2,"trade_unions":[{"id":3}]}]}] |]
{ matchHeaders = [matchContentTypeJson] }
it "can restore default left join behavior" $
get "/projects?select=id,clients!left(id)" `shouldRespondWith`
[json|[
{"id":1,"clients":{"id":1}}, {"id":2,"clients":{"id":1}},
{"id":3,"clients":{"id":2}}, {"id":4,"clients":{"id":2}},
{"id":5,"clients":null}]|]
{ matchHeaders = [matchContentTypeJson] }