workflow_repo.go

package gormimpl

import (
	"context"

	"github.com/flyteorg/flyteadmin/pkg/repositories/errors"
	"github.com/flyteorg/flyteadmin/pkg/repositories/interfaces"
	"github.com/flyteorg/flyteadmin/pkg/repositories/models"
	"github.com/flyteorg/flyteidl/gen/pb-go/flyteidl/core"
	"github.com/flyteorg/flytestdlib/promutils"
	"github.com/jinzhu/gorm"
)

const workflowTableName = "workflows"

// Implementation of WorkflowRepoInterface.
type WorkflowRepo struct {
	db               *gorm.DB
	errorTransformer errors.ErrorTransformer
	metrics          gormMetrics
}

func (r *WorkflowRepo) Create(ctx context.Context, input models.Workflow) error {
	timer := r.metrics.CreateDuration.Start()
	tx := r.db.Create(&input)
	timer.Stop()
	if tx.Error != nil {
		return r.errorTransformer.ToFlyteAdminError(tx.Error)
	}
	return nil
}

func (r *WorkflowRepo) Get(ctx context.Context, input interfaces.GetResourceInput) (models.Workflow, error) {
	var workflow models.Workflow
	timer := r.metrics.GetDuration.Start()
	tx := r.db.Where(&models.Workflow{
		WorkflowKey: models.WorkflowKey{
			Project: input.Project,
			Domain:  input.Domain,
			Name:    input.Name,
			Version: input.Version,
		},
	}).Take(&workflow)
	timer.Stop()
	if tx.Error != nil {
		return models.Workflow{}, r.errorTransformer.ToFlyteAdminError(tx.Error)
	}
	if tx.RecordNotFound() {
		return models.Workflow{}, errors.GetMissingEntityError(core.ResourceType_WORKFLOW.String(), &core.Identifier{
			Project: input.Project,
			Domain:  input.Domain,
			Name:    input.Name,
			Version: input.Version,
		})
	}
	return workflow, nil
}

func (r *WorkflowRepo) List(
	ctx context.Context, input interfaces.ListResourceInput) (interfaces.WorkflowCollectionOutput, error) {
	// First validate input.
	if err := ValidateListInput(input); err != nil {
		return interfaces.WorkflowCollectionOutput{}, err
	}
	var workflows []models.Workflow
	tx := r.db.Limit(input.Limit).Offset(input.Offset)

	// Apply filters
	tx, err := applyFilters(tx, input.InlineFilters, input.MapFilters)
	if err != nil {
		return interfaces.WorkflowCollectionOutput{}, err
	}
	// Apply sort ordering.
	if input.SortParameter != nil {
		tx = tx.Order(input.SortParameter.GetGormOrderExpr())
	}
	timer := r.metrics.ListDuration.Start()
	tx.Find(&workflows)
	timer.Stop()
	if tx.Error != nil {
		return interfaces.WorkflowCollectionOutput{}, r.errorTransformer.ToFlyteAdminError(tx.Error)
	}
	return interfaces.WorkflowCollectionOutput{
		Workflows: workflows,
	}, nil
}

func (r *WorkflowRepo) ListIdentifiers(ctx context.Context, input interfaces.ListResourceInput) (
	interfaces.WorkflowCollectionOutput, error) {

	// Validate input.
	if err := ValidateListInput(input); err != nil {
		return interfaces.WorkflowCollectionOutput{}, err
	}

	tx := r.db.Model(models.Workflow{}).Limit(input.Limit).Offset(input.Offset)

	// Apply filters
	tx, err := applyFilters(tx, input.InlineFilters, input.MapFilters)
	if err != nil {
		return interfaces.WorkflowCollectionOutput{}, err
	}

	// Apply sort ordering.
	if input.SortParameter != nil {
		tx = tx.Order(input.SortParameter.GetGormOrderExpr())
	}

	// Scan the results into a list of workflows
	var workflows []models.Workflow
	timer := r.metrics.ListIdentifiersDuration.Start()
	tx.Select([]string{Project, Domain, Name}).Group(identifierGroupBy).Scan(&workflows)
	timer.Stop()
	if tx.Error != nil {
		return interfaces.WorkflowCollectionOutput{}, r.errorTransformer.ToFlyteAdminError(tx.Error)
	}

	return interfaces.WorkflowCollectionOutput{
		Workflows: workflows,
	}, nil
}

// Returns an instance of WorkflowRepoInterface
func NewWorkflowRepo(
	db *gorm.DB, errorTransformer errors.ErrorTransformer, scope promutils.Scope) interfaces.WorkflowRepoInterface {
	metrics := newMetrics(scope)
	return &WorkflowRepo{
		db:               db,
		errorTransformer: errorTransformer,
		metrics:          metrics,
	}
}