Implement filtering in ListPipelines

backend/src/apiserver/filter/filter.go

@@ -128,18 +128,24 @@ func New(filterProto *api.Filter) (*Filter, error) {
 	return f, nil
 }
 
-// NewWithKeyMap is like New, but takes an additional map for mapping key names
+// NewWithKeyMap is like New, but takes an additional map and model name for mapping key names
 // in the protocol buffer to an appropriate name for use when querying the
-// model. For example, if the API name of a field is "foo" and the equivalent
-// model name is "ModelFoo", then filterProto with predicates against key "foo"
-// will be parsed as if the key value was "ModelFoo".
-func NewWithKeyMap(filterProto *api.Filter, keyMap map[string]string) (*Filter, error) {
+// model. For example, if the API name of a field is "name", the model name is "pipelines", and
+// the equivalent column name is "Name", then filterProto with predicates against key "name"
+// will be parsed as if the key value was "pipelines.Name".
+func NewWithKeyMap(filterProto *api.Filter, keyMap map[string]string, modelName string) (*Filter, error) {
+	// Fully qualify column name to avoid "ambiguous column name" error.
+	var modelNamePrefix string
+	if modelName != "" {
+		modelNamePrefix = modelName + "."
+	}
+
 	for _, pred := range filterProto.Predicates {
 		k, ok := keyMap[pred.Key]
 		if !ok {
 			return nil, util.NewInvalidInputError("no support for filtering on unrecognized field %q", pred.Key)
 		}
-		pred.Key = k
+		pred.Key = modelNamePrefix + k
 	}
 	return New(filterProto)
 }

backend/src/apiserver/filter/filter_test.go

@@ -9,6 +9,7 @@ import (
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
 	api "github.com/kubeflow/pipelines/backend/api/go_client"
+	"github.com/kubeflow/pipelines/backend/src/apiserver/model"
 )
 
 func TestValidNewFilters(t *testing.T) {
@@ -87,6 +88,55 @@ func TestValidNewFilters(t *testing.T) {
 	}
 }
 
+func TestValidNewFiltersWithKeyMap(t *testing.T) {
+	opts := []cmp.Option{
+		cmp.AllowUnexported(Filter{}),
+		cmp.FilterPath(func(p cmp.Path) bool {
+			return p.String() == "filterProto"
+		}, cmp.Ignore()),
+		cmpopts.EquateEmpty(),
+	}
+
+	tests := []struct {
+		protoStr string
+		want     *Filter
+	}{
+		{
+			`predicates { key: "name" op: EQUALS string_value: "pipeline" }`,
+			&Filter{eq: map[string]interface{}{"pipelines.Name": "pipeline"}},
+		},
+		{
+			`predicates { key: "name" op: NOT_EQUALS string_value: "pipeline" }`,
+			&Filter{neq: map[string]interface{}{"pipelines.Name": "pipeline"}},
+		},
+		{
+			`predicates {
+				key: "name" op: IN
+				string_values { values: 'pipeline_1' values: 'pipeline_2' } }`,
+			&Filter{in: map[string]interface{}{"pipelines.Name": []string{"pipeline_1", "pipeline_2"}}},
+		},
+		{
+			`predicates {
+				key: "name" op: IS_SUBSTRING string_value: "pipeline" }`,
+			&Filter{substring: map[string]interface{}{"pipelines.Name": "pipeline"}},
+		},
+	}
+
+	for _, test := range tests {
+		filterProto := &api.Filter{}
+		if err := proto.UnmarshalText(test.protoStr, filterProto); err != nil {
+			t.Errorf("Failed to unmarshal Filter text proto\n%q\nError: %v", test.protoStr, err)
+			continue
+		}
+
+		listable := &model.Pipeline{}
+		got, err := NewWithKeyMap(filterProto, listable.APIToModelFieldMap(), listable.GetModelName())
+		if !cmp.Equal(got, test.want, opts...) || err != nil {
+			t.Errorf("New(%+v) = %+v, %v\nWant %+v, nil", *filterProto, got, err, test.want)
+		}
+	}
+}
+
 func TestInvalidFilters(t *testing.T) {
 	tests := []struct {
 		protoStr string

backend/src/apiserver/list/list.go

@@ -155,7 +155,7 @@ func NewOptions(listable Listable, pageSize int, sortBy string, filterProto *api
 
 	// Filtering.
 	if filterProto != nil {
-		f, err := filter.NewWithKeyMap(filterProto, listable.APIToModelFieldMap())
+		f, err := filter.NewWithKeyMap(filterProto, listable.APIToModelFieldMap(), listable.GetModelName())
 		if err != nil {
 			return nil, err
 		}

backend/src/apiserver/storage/pipeline_store.go

@@ -88,7 +88,7 @@ func (s *PipelineStore) ListPipelines(opts *list.Options) ([]*model.Pipeline, in
 	}
 
 	buildQuery := func(sqlBuilder sq.SelectBuilder) sq.SelectBuilder {
-		return sqlBuilder.
+		return opts.AddFilterToSelect(sqlBuilder).
 			From("pipelines").
 			LeftJoin("pipeline_versions ON pipelines.DefaultVersionId = pipeline_versions.UUID").
 			Where(sq.Eq{"pipelines.Status": model.PipelineReady})

backend/src/apiserver/storage/pipeline_store_test.go

@@ -17,6 +17,7 @@ package storage
 import (
 	"testing"
 
+	api "github.com/kubeflow/pipelines/backend/api/go_client"
 	"github.com/kubeflow/pipelines/backend/src/apiserver/list"
 	"github.com/kubeflow/pipelines/backend/src/apiserver/model"
 	"github.com/kubeflow/pipelines/backend/src/common/util"
@@ -102,6 +103,52 @@ func TestListPipelines_FilterOutNotReady(t *testing.T) {
 	assert.Equal(t, pipelinesExpected, pipelines)
 }
 
+func TestListPipelines_WithFilter(t *testing.T) {
+	db := NewFakeDbOrFatal()
+	defer db.Close()
+	pipelineStore := NewPipelineStore(db, util.NewFakeTimeForEpoch(), util.NewFakeUUIDGeneratorOrFatal(fakeUUID, nil))
+	pipelineStore.CreatePipeline(createPipeline("pipeline_foo"))
+	pipelineStore.uuid = util.NewFakeUUIDGeneratorOrFatal(fakeUUIDTwo, nil)
+	pipelineStore.CreatePipeline(createPipeline("pipeline_bar"))
+	pipelineStore.uuid = util.NewFakeUUIDGeneratorOrFatal(fakeUUIDThree, nil)
+
+	expectedPipeline1 := &model.Pipeline{
+		UUID:             fakeUUID,
+		CreatedAtInSec:   1,
+		Name:             "pipeline_foo",
+		Parameters:       `[{"Name": "param1"}]`,
+		Status:           model.PipelineReady,
+		DefaultVersionId: fakeUUID,
+		DefaultVersion: &model.PipelineVersion{
+			UUID:           fakeUUID,
+			CreatedAtInSec: 1,
+			Name:           "pipeline_foo",
+			Parameters:     `[{"Name": "param1"}]`,
+			PipelineId:     fakeUUID,
+			Status:         model.PipelineVersionReady,
+		}}
+	pipelinesExpected := []*model.Pipeline{expectedPipeline1}
+
+	filterProto := &api.Filter{
+		Predicates: []*api.Predicate{
+			&api.Predicate{
+				Key:   "name",
+				Op:    api.Predicate_IS_SUBSTRING,
+				Value: &api.Predicate_StringValue{StringValue: "pipeline_f"},
+			},
+		},
+	}
+	opts, err := list.NewOptions(&model.Pipeline{}, 10, "id", filterProto)
+	assert.Nil(t, err)
+
+	pipelines, totalSize, nextPageToken, err := pipelineStore.ListPipelines(opts)
+
+	assert.Nil(t, err)
+	assert.Equal(t, "", nextPageToken)
+	assert.Equal(t, 1, totalSize)
+	assert.Equal(t, pipelinesExpected, pipelines)
+}
+
 func TestListPipelines_Pagination(t *testing.T) {
 	db := NewFakeDbOrFatal()
 	defer db.Close()