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refactor: add generalised aliasing function that takes a callback
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,57 +1,83 @@ | ||
package ingress | ||
|
||
import ( | ||
"fmt" | ||
|
||
"github.com/TBD54566975/ftl/backend/schema" | ||
) | ||
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func transformFromAliasedFields(dataRef *schema.DataRef, sch *schema.Schema, request map[string]any) (map[string]any, error) { | ||
data, err := sch.ResolveDataRefMonomorphised(dataRef) | ||
if err != nil { | ||
return nil, err | ||
} | ||
func transformAliasedFields(sch *schema.Schema, t schema.Type, obj any, aliaser func(obj map[string]any, field *schema.Field) string) error { | ||
switch t := t.(type) { | ||
case *schema.DataRef: | ||
data, err := sch.ResolveDataRefMonomorphised(t) | ||
if err != nil { | ||
return fmt.Errorf("failed to resolve data type: %w", err) | ||
} | ||
m, ok := obj.(map[string]any) | ||
if !ok { | ||
return fmt.Errorf("expected map, got %T", obj) | ||
} | ||
for _, field := range data.Fields { | ||
name := aliaser(m, field) | ||
if err := transformAliasedFields(sch, field.Type, m[name], aliaser); err != nil { | ||
return err | ||
} | ||
} | ||
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||
for _, field := range data.Fields { | ||
if _, ok := request[field.Name]; !ok && field.Alias != "" && request[field.Alias] != nil { | ||
request[field.Name] = request[field.Alias] | ||
delete(request, field.Alias) | ||
case *schema.Array: | ||
a, ok := obj.([]any) | ||
if !ok { | ||
return fmt.Errorf("expected array, got %T", obj) | ||
} | ||
for _, elem := range a { | ||
if err := transformAliasedFields(sch, t.Element, elem, aliaser); err != nil { | ||
return err | ||
} | ||
} | ||
|
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if d, ok := field.Type.(*schema.DataRef); ok { | ||
if _, found := request[field.Name]; found { | ||
rMap, err := transformFromAliasedFields(d, sch, request[field.Name].(map[string]any)) | ||
if err != nil { | ||
return nil, err | ||
} | ||
request[field.Name] = rMap | ||
case *schema.Map: | ||
m, ok := obj.(map[string]any) | ||
if !ok { | ||
return fmt.Errorf("expected map, got %T", obj) | ||
} | ||
for key, value := range m { | ||
if err := transformAliasedFields(sch, t.Key, key, aliaser); err != nil { | ||
return err | ||
} | ||
if err := transformAliasedFields(sch, t.Value, value, aliaser); err != nil { | ||
return err | ||
} | ||
} | ||
} | ||
|
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return request, nil | ||
} | ||
case *schema.Optional: | ||
if obj == nil { | ||
return nil | ||
} | ||
return transformAliasedFields(sch, t.Type, obj, aliaser) | ||
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func transformToAliasedFields(dataRef *schema.DataRef, sch *schema.Schema, request map[string]any) (map[string]any, error) { | ||
data, err := sch.ResolveDataRefMonomorphised(dataRef) | ||
if err != nil { | ||
return nil, err | ||
case *schema.Any, *schema.Bool, *schema.Bytes, *schema.Float, *schema.Int, | ||
*schema.String, *schema.Time, *schema.Unit: | ||
} | ||
return nil | ||
} | ||
|
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for _, field := range data.Fields { | ||
if field.Alias != "" && field.Name != field.Alias { | ||
request[field.Alias] = request[field.Name] | ||
delete(request, field.Name) | ||
func transformFromAliasedFields(dataRef *schema.DataRef, sch *schema.Schema, request map[string]any) (map[string]any, error) { | ||
return request, transformAliasedFields(sch, dataRef, request, func(obj map[string]any, field *schema.Field) string { | ||
if _, ok := obj[field.Name]; !ok && field.Alias != "" && obj[field.Alias] != nil { | ||
obj[field.Name] = obj[field.Alias] | ||
delete(obj, field.Alias) | ||
} | ||
return field.Name | ||
}) | ||
} | ||
|
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if d, ok := field.Type.(*schema.DataRef); ok { | ||
if _, found := request[field.Name]; found { | ||
rMap, err := transformToAliasedFields(d, sch, request[field.Name].(map[string]any)) | ||
if err != nil { | ||
return nil, err | ||
} | ||
request[field.Name] = rMap | ||
} | ||
func transformToAliasedFields(dataRef *schema.DataRef, sch *schema.Schema, request map[string]any) (map[string]any, error) { | ||
return request, transformAliasedFields(sch, dataRef, request, func(obj map[string]any, field *schema.Field) string { | ||
if field.Alias != "" && field.Name != field.Alias { | ||
obj[field.Alias] = obj[field.Name] | ||
delete(obj, field.Name) | ||
return field.Alias | ||
} | ||
} | ||
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return request, nil | ||
return field.Name | ||
}) | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,129 @@ | ||
package ingress | ||
|
||
import ( | ||
"testing" | ||
|
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"github.com/alecthomas/assert/v2" | ||
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"github.com/TBD54566975/ftl/backend/schema" | ||
) | ||
|
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func TestTransformFromAliasedFields(t *testing.T) { | ||
schemaText := ` | ||
module test { | ||
data Inner { | ||
waz String alias foo | ||
} | ||
data Test { | ||
scalar String alias bar | ||
inner Inner | ||
array [Inner] | ||
map {String: Inner} | ||
optional Inner | ||
} | ||
} | ||
` | ||
sch, err := schema.ParseString("test", schemaText) | ||
assert.NoError(t, err) | ||
actual, err := transformFromAliasedFields(&schema.DataRef{Module: "test", Name: "Test"}, sch, map[string]any{ | ||
"bar": "value", | ||
"inner": map[string]any{ | ||
"foo": "value", | ||
}, | ||
"array": []any{ | ||
map[string]any{ | ||
"foo": "value", | ||
}, | ||
}, | ||
"map": map[string]any{ | ||
"key": map[string]any{ | ||
"foo": "value", | ||
}, | ||
}, | ||
"optional": map[string]any{ | ||
"foo": "value", | ||
}, | ||
}) | ||
expected := map[string]any{ | ||
"scalar": "value", | ||
"inner": map[string]any{ | ||
"waz": "value", | ||
}, | ||
"array": []any{ | ||
map[string]any{ | ||
"waz": "value", | ||
}, | ||
}, | ||
"map": map[string]any{ | ||
"key": map[string]any{ | ||
"waz": "value", | ||
}, | ||
}, | ||
"optional": map[string]any{ | ||
"waz": "value", | ||
}, | ||
} | ||
assert.NoError(t, err) | ||
assert.Equal(t, expected, actual) | ||
} | ||
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func TestTransformToAliasedFields(t *testing.T) { | ||
schemaText := ` | ||
module test { | ||
data Inner { | ||
waz String alias foo | ||
} | ||
data Test { | ||
scalar String alias bar | ||
inner Inner | ||
array [Inner] | ||
map {String: Inner} | ||
optional Inner | ||
} | ||
} | ||
` | ||
sch, err := schema.ParseString("test", schemaText) | ||
assert.NoError(t, err) | ||
actual, err := transformToAliasedFields(&schema.DataRef{Module: "test", Name: "Test"}, sch, map[string]any{ | ||
"scalar": "value", | ||
"inner": map[string]any{ | ||
"waz": "value", | ||
}, | ||
"array": []any{ | ||
map[string]any{ | ||
"waz": "value", | ||
}, | ||
}, | ||
"map": map[string]any{ | ||
"key": map[string]any{ | ||
"waz": "value", | ||
}, | ||
}, | ||
"optional": map[string]any{ | ||
"waz": "value", | ||
}, | ||
}) | ||
expected := map[string]any{ | ||
"bar": "value", | ||
"inner": map[string]any{ | ||
"foo": "value", | ||
}, | ||
"array": []any{ | ||
map[string]any{ | ||
"foo": "value", | ||
}, | ||
}, | ||
"map": map[string]any{ | ||
"key": map[string]any{ | ||
"foo": "value", | ||
}, | ||
}, | ||
"optional": map[string]any{ | ||
"foo": "value", | ||
}, | ||
} | ||
assert.NoError(t, err) | ||
assert.Equal(t, expected, actual) | ||
} |
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