355 lines
22 KiB
Haskell
355 lines
22 KiB
Haskell
module Feature.Query.AggregateFunctionsSpec where
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import Network.Wai (Application)
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import Test.Hspec hiding (pendingWith)
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import Test.Hspec.Wai
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import Test.Hspec.Wai.JSON
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import Protolude hiding (get)
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import SpecHelper
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allowed :: SpecWith ((), Application)
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allowed =
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describe "aggregate functions" $ do
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context "performing a count without specifying a field" $ do
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it "returns the count of all rows when no other fields are selected" $
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get "/entities?select=count()" `shouldRespondWith`
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[json|[{ "count": 4 }]|] { matchHeaders = [matchContentTypeJson] }
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it "allows you to specify an alias for the count" $
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get "/entities?select=cnt:count()" `shouldRespondWith`
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[json|[{ "cnt": 4 }]|] { matchHeaders = [matchContentTypeJson] }
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it "allows you to cast the result of the count" $
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get "/entities?select=count()::text" `shouldRespondWith`
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[json|[{ "count": "4" }]|] { matchHeaders = [matchContentTypeJson] }
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it "returns the count grouped by all provided fields when other fields are selected" $
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get "/projects?select=c:count(),client_id&order=client_id.desc" `shouldRespondWith`
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[json|[{ "c": 1, "client_id": null }, { "c": 2, "client_id": 2 }, { "c": 2, "client_id": 1}]|] { matchHeaders = [matchContentTypeJson] }
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context "performing a count by using it as a column (backwards compat)" $ do
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it "returns the count of all rows when no other fields are selected" $
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get "/entities?select=count" `shouldRespondWith`
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[json|[{ "count": 4 }]|] { matchHeaders = [matchContentTypeJson] }
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it "returns the embedded count of another resource" $
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get "/clients?select=name,projects(count)'" `shouldRespondWith`
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[json|[{"name":"Microsoft","projects":[{"count": 2}]}, {"name":"Apple","projects":[{"count": 2}]}]|] { matchHeaders = [matchContentTypeJson] }
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context "performing an aggregation on one or more fields" $ do
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it "supports sum()" $
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get "/project_invoices?select=invoice_total.sum()" `shouldRespondWith`
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[json|[{"sum":8800}]|] { matchHeaders = [matchContentTypeJson] }
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it "supports avg()" $
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get "/project_invoices?select=invoice_total.avg()" `shouldRespondWith`
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[json|[{"avg":1100.0000000000000000}]|] { matchHeaders = [matchContentTypeJson] }
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it "supports min()" $
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get "/project_invoices?select=invoice_total.min()" `shouldRespondWith`
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[json|[{ "min": 100 }]|] { matchHeaders = [matchContentTypeJson] }
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it "supports max()" $
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get "/project_invoices?select=invoice_total.max()" `shouldRespondWith`
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[json|[{ "max": 4000 }]|] { matchHeaders = [matchContentTypeJson] }
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it "supports count()" $
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get "/project_invoices?select=invoice_total.count()" `shouldRespondWith`
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[json|[{ "count": 8 }]|] { matchHeaders = [matchContentTypeJson] }
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it "groups by any fields selected that do not have an aggregate applied" $
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get "/project_invoices?select=invoice_total.sum(),invoice_total.max(),invoice_total.min(),project_id&order=project_id.desc" `shouldRespondWith`
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[json|[
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{"sum":4100,"max":4000,"min":100,"project_id":4},
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{"sum":3200,"max":2000,"min":1200,"project_id":3},
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{"sum":1200,"max":700,"min":500,"project_id":2},
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{"sum":300,"max":200,"min":100,"project_id":1} ]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports the use of aliases on fields that will be used in the group by" $
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get "/project_invoices?select=invoice_total.sum(),invoice_total.max(),invoice_total.min(),pid:project_id&order=project_id.desc" `shouldRespondWith`
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[json|[
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{"sum":4100,"max":4000,"min":100,"pid":4},
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{"sum":3200,"max":2000,"min":1200,"pid":3},
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{"sum":1200,"max":700,"min":500,"pid":2},
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{"sum":300,"max":200,"min":100,"pid":1}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "allows you to specify an alias for the aggregate" $
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get "/project_invoices?select=total_charged:invoice_total.sum(),project_id&order=project_id.desc" `shouldRespondWith`
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[json|[
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{"total_charged":4100,"project_id":4},
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{"total_charged":3200,"project_id":3},
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{"total_charged":1200,"project_id":2},
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{"total_charged":300,"project_id":1}]|] { matchHeaders = [matchContentTypeJson] }
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it "allows you to cast the result of the aggregate" $
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get "/project_invoices?select=total_charged:invoice_total.sum()::text,project_id&order=project_id.desc" `shouldRespondWith`
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[json|[
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{"total_charged":"4100","project_id":4},
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{"total_charged":"3200","project_id":3},
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{"total_charged":"1200","project_id":2},
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{"total_charged":"300","project_id":1}]|] { matchHeaders = [matchContentTypeJson] }
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it "allows you to cast the input argument of the aggregate" $
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get "/trash_details?select=jsonb_col->>key::integer.sum()" `shouldRespondWith`
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[json|[{"sum": 24}]|] { matchHeaders = [matchContentTypeJson] }
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it "allows the combination of an alias, a before cast, and an after cast" $
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get "/trash_details?select=s:jsonb_col->>key::integer.sum()::text" `shouldRespondWith`
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[json|[{"s": "24"}]|] { matchHeaders = [matchContentTypeJson] }
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it "supports use of aggregates on RPC functions that return table values" $
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get "/rpc/getallprojects?select=id.max()" `shouldRespondWith`
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[json|[{"max": 5}]|] { matchHeaders = [matchContentTypeJson] }
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it "allows the use of an JSON-embedded relationship column as part of the group by" $
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get "/project_invoices?select=project_id,total:invoice_total.sum(),projects(name)&order=project_id" `shouldRespondWith`
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[json|[
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{"project_id": 1, "total": 300, "projects": {"name": "Windows 7"}},
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{"project_id": 2, "total": 1200, "projects": {"name": "Windows 10"}},
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{"project_id": 3, "total": 3200, "projects": {"name": "IOS"}},
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{"project_id": 4, "total": 4100, "projects": {"name": "OSX"}}]|] { matchHeaders = [matchContentTypeJson] }
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context "performing aggregations that involve JSON-embedded relationships" $ do
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it "supports sum()" $
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get "/projects?select=name,project_invoices(invoice_total.sum())" `shouldRespondWith`
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[json|[
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{"name":"Windows 7","project_invoices":[{"sum": 300}]},
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{"name":"Windows 10","project_invoices":[{"sum": 1200}]},
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{"name":"IOS","project_invoices":[{"sum": 3200}]},
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{"name":"OSX","project_invoices":[{"sum": 4100}]},
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{"name":"Orphan","project_invoices":[{"sum": null}]}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports max()" $
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get "/projects?select=name,project_invoices(invoice_total.max())" `shouldRespondWith`
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[json|[{"name":"Windows 7","project_invoices":[{"max": 200}]},
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{"name":"Windows 10","project_invoices":[{"max": 700}]},
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{"name":"IOS","project_invoices":[{"max": 2000}]},
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{"name":"OSX","project_invoices":[{"max": 4000}]},
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{"name":"Orphan","project_invoices":[{"max": null}]}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports avg()" $
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get "/projects?select=name,project_invoices(invoice_total.avg())" `shouldRespondWith`
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[json|[{"name":"Windows 7","project_invoices":[{"avg": 150.0000000000000000}]},
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{"name":"Windows 10","project_invoices":[{"avg": 600.0000000000000000}]},
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{"name":"IOS","project_invoices":[{"avg": 1600.0000000000000000}]},
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{"name":"OSX","project_invoices":[{"avg": 2050.0000000000000000}]},
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{"name":"Orphan","project_invoices":[{"avg": null}]}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports min()" $
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get "/projects?select=name,project_invoices(invoice_total.min())" `shouldRespondWith`
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[json|[{"name":"Windows 7","project_invoices":[{"min": 100}]},
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{"name":"Windows 10","project_invoices":[{"min": 500}]},
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{"name":"IOS","project_invoices":[{"min": 1200}]},
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{"name":"OSX","project_invoices":[{"min": 100}]},
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{"name":"Orphan","project_invoices":[{"min": null}]}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports all at once" $
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get "/projects?select=name,project_invoices(invoice_total.max(),invoice_total.min(),invoice_total.avg(),invoice_total.sum(),invoice_total.count())" `shouldRespondWith`
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[json|[
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{"name":"Windows 7","project_invoices":[{"avg": 150.0000000000000000, "max": 200, "min": 100, "sum": 300, "count": 2}]},
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{"name":"Windows 10","project_invoices":[{"avg": 600.0000000000000000, "max": 700, "min": 500, "sum": 1200, "count": 2}]},
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{"name":"IOS","project_invoices":[{"avg": 1600.0000000000000000, "max": 2000, "min": 1200, "sum": 3200, "count": 2}]},
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{"name":"OSX","project_invoices":[{"avg": 2050.0000000000000000, "max": 4000, "min": 100, "sum": 4100, "count": 2}]},
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{"name":"Orphan","project_invoices":[{"avg": null, "max": null, "min": null, "sum": null, "count": 0}]}]|]
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{ matchHeaders = [matchContentTypeJson] }
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context "performing aggregations on spreaded fields from an embedded resource" $ do
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context "to-one spread relationships" $ do
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it "supports the use of aggregates on spreaded fields" $ do
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get "/budget_expenses?select=total_expenses:expense_amount.sum(),...budget_categories(budget_owner,total_budget:budget_amount.sum())&order=budget_categories(budget_owner)" `shouldRespondWith`
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[json|[
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{"total_expenses": 600.52,"budget_owner": "Brian Smith", "total_budget": 2000.42},
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{"total_expenses": 100.22, "budget_owner": "Jane Clarkson","total_budget": 7000.41},
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{"total_expenses": 900.27, "budget_owner": "Sally Hughes", "total_budget": 500.23}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports the use of aggregates on spreaded fields when only aggregates are supplied" $ do
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get "/budget_expenses?select=...budget_categories(total_budget:budget_amount.sum())" `shouldRespondWith`
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[json|[{"total_budget": 9501.06}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports aggregates from a spread relationships grouped by spreaded fields from other relationships" $ do
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get "/processes?select=...process_costs(cost.sum()),...process_categories(name)" `shouldRespondWith`
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[json|[
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{"sum": 400.00, "name": "Batch"},
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{"sum": 350.00, "name": "Mass"}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/processes?select=...process_costs(cost_sum:cost.sum()),...process_categories(category:name)" `shouldRespondWith`
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[json|[
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{"cost_sum": 400.00, "category": "Batch"},
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{"cost_sum": 350.00, "category": "Mass"}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports aggregates on spreaded fields from nested relationships" $ do
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get "/process_supervisor?select=...processes(factory_id,...process_costs(cost.sum()))" `shouldRespondWith`
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[json|[
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{"factory_id": 3, "sum": 110.00},
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{"factory_id": 2, "sum": 500.00},
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{"factory_id": 1, "sum": 350.00}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/process_supervisor?select=...processes(factory_id,...process_costs(cost_sum:cost.sum()))" `shouldRespondWith`
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[json|[
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{"factory_id": 3, "cost_sum": 110.00},
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{"factory_id": 2, "cost_sum": 500.00},
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{"factory_id": 1, "cost_sum": 350.00}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports aggregates on spreaded fields from nested relationships, grouped by a regular nested relationship" $ do
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get "/process_supervisor?select=...processes(factories(name),...process_costs(cost.sum()))" `shouldRespondWith`
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[json|[
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{"factories": {"name": "Factory A"}, "sum": 350.00},
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{"factories": {"name": "Factory B"}, "sum": 500.00},
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{"factories": {"name": "Factory C"}, "sum": 110.00}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/process_supervisor?select=...processes(factory:factories(name),...process_costs(cost_sum:cost.sum()))" `shouldRespondWith`
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[json|[
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{"factory": {"name": "Factory A"}, "cost_sum": 350.00},
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{"factory": {"name": "Factory B"}, "cost_sum": 500.00},
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{"factory": {"name": "Factory C"}, "cost_sum": 110.00}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports aggregates on spreaded fields from nested relationships, grouped by spreaded fields from other nested relationships" $ do
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get "/process_supervisor?select=supervisor_id,...processes(...process_costs(cost.sum()),...process_categories(name))&order=supervisor_id" `shouldRespondWith`
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[json|[
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{"supervisor_id": 1, "sum": 220.00, "name": "Batch"},
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{"supervisor_id": 2, "sum": 70.00, "name": "Batch"},
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{"supervisor_id": 2, "sum": 200.00, "name": "Mass"},
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{"supervisor_id": 3, "sum": 180.00, "name": "Batch"},
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{"supervisor_id": 3, "sum": 110.00, "name": "Mass"},
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{"supervisor_id": 4, "sum": 180.00, "name": "Batch"}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/process_supervisor?select=supervisor_id,...processes(...process_costs(cost_sum:cost.sum()),...process_categories(category:name))&order=supervisor_id" `shouldRespondWith`
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[json|[
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{"supervisor_id": 1, "cost_sum": 220.00, "category": "Batch"},
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{"supervisor_id": 2, "cost_sum": 70.00, "category": "Batch"},
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{"supervisor_id": 2, "cost_sum": 200.00, "category": "Mass"},
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{"supervisor_id": 3, "cost_sum": 180.00, "category": "Batch"},
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{"supervisor_id": 3, "cost_sum": 110.00, "category": "Mass"},
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{"supervisor_id": 4, "cost_sum": 180.00, "category": "Batch"}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "supports aggregates on spreaded fields from nested relationships, grouped by spreaded fields from other nested relationships, using a nested relationship as top parent" $ do
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get "/supervisors?select=name,process_supervisor(...processes(...process_costs(cost.sum()),...process_categories(name)))" `shouldRespondWith`
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[json|[
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{"name": "Mary", "process_supervisor": [{"name": "Batch", "sum": 220.00}]},
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{"name": "John", "process_supervisor": [{"name": "Batch", "sum": 70.00}, {"name": "Mass", "sum": 200.00}]},
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{"name": "Peter", "process_supervisor": [{"name": "Batch", "sum": 180.00}, {"name": "Mass", "sum": 110.00}]},
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{"name": "Sarah", "process_supervisor": [{"name": "Batch", "sum": 180.00}]},
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{"name": "Jane", "process_supervisor": []}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/supervisors?select=name,process_supervisor(...processes(...process_costs(cost_sum:cost.sum()),...process_categories(category:name)))" `shouldRespondWith`
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[json|[
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{"name": "Mary", "process_supervisor": [{"category": "Batch", "cost_sum": 220.00}]},
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{"name": "John", "process_supervisor": [{"category": "Batch", "cost_sum": 70.00}, {"category": "Mass", "cost_sum": 200.00}]},
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{"name": "Peter", "process_supervisor": [{"category": "Batch", "cost_sum": 180.00}, {"category": "Mass", "cost_sum": 110.00}]},
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{"name": "Sarah", "process_supervisor": [{"category": "Batch", "cost_sum": 180.00}]},
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{"name": "Jane", "process_supervisor": []}]|]
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{ matchHeaders = [matchContentTypeJson] }
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context "supports count() aggregate without specifying a field" $ do
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it "works by itself in the embedded resource" $ do
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get "/process_supervisor?select=supervisor_id,...processes(count())&order=supervisor_id" `shouldRespondWith`
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[json|[
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{"supervisor_id": 1, "count": 2},
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{"supervisor_id": 2, "count": 2},
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{"supervisor_id": 3, "count": 3},
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{"supervisor_id": 4, "count": 1}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/process_supervisor?select=supervisor_id,...processes(processes_count:count())&order=supervisor_id" `shouldRespondWith`
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[json|[
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{"supervisor_id": 1, "processes_count": 2},
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{"supervisor_id": 2, "processes_count": 2},
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{"supervisor_id": 3, "processes_count": 3},
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{"supervisor_id": 4, "processes_count": 1}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "works alongside other columns in the embedded resource" $ do
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get "/process_supervisor?select=...supervisors(id,count())&order=supervisors(id)" `shouldRespondWith`
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[json|[
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{"id": 1, "count": 2},
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{"id": 2, "count": 2},
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{"id": 3, "count": 3},
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{"id": 4, "count": 1}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/process_supervisor?select=...supervisors(supervisor:id,supervisor_count:count())&order=supervisors(supervisor)" `shouldRespondWith`
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[json|[
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{"supervisor": 1, "supervisor_count": 2},
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{"supervisor": 2, "supervisor_count": 2},
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{"supervisor": 3, "supervisor_count": 3},
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{"supervisor": 4, "supervisor_count": 1}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "works on nested resources" $ do
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get "/process_supervisor?select=supervisor_id,...processes(...process_costs(count()))&order=supervisor_id" `shouldRespondWith`
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[json|[
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{"supervisor_id": 1, "count": 2},
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{"supervisor_id": 2, "count": 2},
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{"supervisor_id": 3, "count": 3},
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{"supervisor_id": 4, "count": 1}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/process_supervisor?select=supervisor:supervisor_id,...processes(...process_costs(process_costs_count:count()))&order=supervisor_id" `shouldRespondWith`
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[json|[
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{"supervisor": 1, "process_costs_count": 2},
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{"supervisor": 2, "process_costs_count": 2},
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{"supervisor": 3, "process_costs_count": 3},
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{"supervisor": 4, "process_costs_count": 1}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "works on nested resources grouped by spreaded fields" $ do
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get "/process_supervisor?select=...processes(factory_id,...process_costs(count()))&order=processes(factory_id)" `shouldRespondWith`
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[json|[
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{"factory_id": 1, "count": 2},
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{"factory_id": 2, "count": 4},
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{"factory_id": 3, "count": 2}]|]
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{ matchHeaders = [matchContentTypeJson] }
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get "/process_supervisor?select=...processes(factory:factory_id,...process_costs(process_costs_count:count()))&order=processes(factory)" `shouldRespondWith`
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[json|[
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{"factory": 1, "process_costs_count": 2},
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{"factory": 2, "process_costs_count": 4},
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{"factory": 3, "process_costs_count": 2}]|]
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{ matchHeaders = [matchContentTypeJson] }
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it "works on different levels of the nested resources at the same time" $
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get "/process_supervisor?select=...processes(factory:factory_id,processes_count:count(),...process_costs(process_costs_count:count()))&order=processes(factory)" `shouldRespondWith`
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[json|[
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{"factory": 1, "processes_count": 2, "process_costs_count": 2},
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{"factory": 2, "processes_count": 4, "process_costs_count": 4},
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{"factory": 3, "processes_count": 2, "process_costs_count": 2}]|]
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{ matchHeaders = [matchContentTypeJson] }
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context "to-many spread relationships" $ do
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it "does not support the use of aggregates" $ do
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get "/factories?select=name,...factory_buildings(type,size.sum())" `shouldRespondWith`
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[json|{
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"code": "PGRST127",
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"message":"Feature not implemented",
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"details":"Aggregates are not implemented for one-to-many or many-to-many spreads.",
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"hint":null
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}|]
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{ matchStatus = 400
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, matchHeaders = [matchContentTypeJson] }
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disallowed :: SpecWith ((), Application)
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disallowed =
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describe "attempting to use an aggregate when aggregate functions are disallowed" $ do
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it "prevents the use of aggregates" $
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get "/project_invoices?select=invoice_total.sum()" `shouldRespondWith`
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[json|{
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"hint":null,
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"details":null,
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"code":"PGRST123",
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"message":"Use of aggregate functions is not allowed"
|
|
}|]
|
|
{ matchStatus = 400
|
|
, matchHeaders = [matchContentTypeJson] }
|
|
|
|
it "prevents the use of aggregates on embedded relationships" $
|
|
get "/projects?select=name,project_invoices(invoice_total.sum())" `shouldRespondWith`
|
|
[json|{
|
|
"hint":null,
|
|
"details":null,
|
|
"code":"PGRST123",
|
|
"message":"Use of aggregate functions is not allowed"
|
|
}|]
|
|
{ matchStatus = 400
|
|
, matchHeaders = [matchContentTypeJson] }
|
|
|
|
it "prevents the use of aggregates on to-one spread embeds" $
|
|
get "/project_invoices?select=...projects(id.count())" `shouldRespondWith`
|
|
[json|{
|
|
"hint":null,
|
|
"details":null,
|
|
"code":"PGRST123",
|
|
"message":"Use of aggregate functions is not allowed"
|
|
}|]
|
|
{ matchStatus = 400
|
|
, matchHeaders = [matchContentTypeJson] }
|
|
|
|
it "prevents the use of aggregates on to-many spread embeds" $
|
|
get "/factories?select=...processes(id.count())" `shouldRespondWith`
|
|
[json|{
|
|
"hint":null,
|
|
"details":null,
|
|
"code":"PGRST123",
|
|
"message":"Use of aggregate functions is not allowed"
|
|
}|]
|
|
{ matchStatus = 400
|
|
, matchHeaders = [matchContentTypeJson] }
|