add logging and a lot of loaders.

database/drivers/mysqldriver/projects.go

@@ -107,6 +107,7 @@ func (r *projectRepository) GetPermission(ctx context.Context, project models.Pr
 			return &models.ProjectPermission{
 				ProjectID: project.ID,
 				UserID:    user.ID,
+				Level:     models.ProjectPermissionLevelNoAccess,
 			}, nil
 		}
 
@@ -116,6 +117,40 @@ func (r *projectRepository) GetPermission(ctx context.Context, project models.Pr
 	return &permission, nil
 }
 
+func (r *projectRepository) GetUserPermissions(ctx context.Context, user models.User, projectIDs []string) ([]*models.ProjectPermission, error) {
+	query, args, err := sq.Select("*").From("project_permission").Where(sq.Eq{
+		"user_id":    user.ID,
+		"project_id": projectIDs,
+	}).ToSql()
+	if err != nil {
+		return nil, err
+	}
+
+	permissions := make([]*models.ProjectPermission, 0, 8)
+	err = r.db.GetContext(ctx, &permissions, query, args...)
+	if err != nil && err != sql.ErrNoRows {
+		return nil, err
+	}
+
+	filled := make(map[string]bool, len(permissions))
+	for _, permission := range permissions {
+		filled[permission.ProjectID] = true
+	}
+	for _, projectID := range projectIDs {
+		if filled[projectID] {
+			continue
+		}
+
+		permissions = append(permissions, &models.ProjectPermission{
+			ProjectID: projectID,
+			UserID:    user.ID,
+			Level:     models.ProjectPermissionLevelNoAccess,
+		})
+	}
+
+	return permissions, nil
+}
+
 func (r *projectRepository) GetIssuePermission(ctx context.Context, issue models.Issue, user models.User) (*models.ProjectPermission, error) {
 	return r.GetPermission(ctx, models.Project{ID: issue.ProjectID}, user)
 }
@@ -140,10 +175,10 @@ func (r *projectRepository) Delete(ctx context.Context, project models.Project)
 		return err
 	}
 
-	//_, err = r.db.ExecContext(ctx, "DELETE FROM project_status WHERE project_id=?", project.ID)
+	_, err = r.db.ExecContext(ctx, "DELETE FROM project_status WHERE project_id=?", project.ID)
-	//if err != nil {
+	if err != nil {
-	//	return err
+		return err
-	//}
+	}
 
 	return nil
 }

database/repositories/projectrepository.go

@@ -12,6 +12,7 @@ type ProjectRepository interface {
 	Save(ctx context.Context, project models.Project) error
 	ListPermissions(ctx context.Context, project models.Project) ([]*models.ProjectPermission, error)
 	GetPermission(ctx context.Context, project models.Project, user models.User) (*models.ProjectPermission, error)
+	GetUserPermissions(ctx context.Context, user models.User, projectIDs []string) ([]*models.ProjectPermission, error)
 	GetIssuePermission(ctx context.Context, issue models.Issue, user models.User) (*models.ProjectPermission, error)
 	SetPermission(ctx context.Context, permission models.ProjectPermission) error
 	Delete(ctx context.Context, project models.Project) error

go.mod

@@ -18,5 +18,6 @@ require (
 	github.com/urfave/cli/v2 v2.2.0
 	github.com/vektah/gqlparser/v2 v2.0.1
 	golang.org/x/crypto v0.0.0-20200403201458-baeed622b8d8
+	golang.org/x/tools v0.0.0-20200114235610-7ae403b6b589
 	gopkg.in/ini.v1 v1.56.0 // indirect
 )

graph/graph.go

@@ -31,7 +31,11 @@ func Gin(bundle services.Bundle, database database.Database) gin.HandlerFunc {
 		bundle.Auth.CheckGinSession(c)
 
 		c.Request = c.Request.WithContext(
-			loaders.NewUserLoaderContext(c.Request.Context(), database.Users()),
+			loaders.ContextWithLoaders(
+				c.Request.Context(),
+				bundle.Auth.UserFromContext(c.Request.Context()),
+				database,
+			),
 		)
 
 		gqlHandler.ServeHTTP(c.Writer, c.Request)

graph/loaders/activityloader.go

@@ -0,0 +1,58 @@
+package loaders
+
+import (
+	"context"
+	"git.aiterp.net/stufflog/server/database/repositories"
+	"git.aiterp.net/stufflog/server/internal/slerrors"
+	"git.aiterp.net/stufflog/server/models"
+	"time"
+)
+
+// go run github.com/vektah/dataloaden ActivityLoader string \*git.aiterp.net/stufflog/server/models.Activity
+
+var activityLoaderCtxKey = "ctx.stufflog.ActivityLoader"
+
+func ActivityLoaderFromContext(ctx context.Context) *ActivityLoader {
+	return ctx.Value(activityLoaderCtxKey).(*ActivityLoader)
+}
+
+func NewActivityLoader(ctx context.Context, activityRepo repositories.ActivityRepository) *ActivityLoader {
+	return &ActivityLoader{
+		fetch: func(keys []string) ([]*models.Activity, []error) {
+			results := make([]*models.Activity, len(keys))
+			errors := make([]error, len(keys))
+
+			activities, err := activityRepo.List(ctx, models.ActivityFilter{ActivityIDs: keys})
+			if err != nil {
+				for i := range errors {
+					errors[i] = err
+				}
+
+				return results, errors
+			}
+
+			for i, key := range keys {
+				found := false
+				for j, activity := range activities {
+					if activity.ID == key {
+						found = true
+						results[i] = activity
+
+						activities[j] = activities[len(activities)-1]
+						activities = activities[:len(activities)-1]
+
+						break
+					}
+				}
+
+				if !found {
+					errors[i] = slerrors.NotFound("Activity")
+				}
+			}
+
+			return results, errors
+		},
+		wait:     time.Millisecond / 2,
+		maxBatch: 16,
+	}
+}

graph/loaders/activityloader_gen.go

@@ -0,0 +1,203 @@
+// Code generated by github.com/vektah/dataloaden, DO EDIT.
+
+package loaders
+
+import (
+	"sync"
+	"time"
+
+	"git.aiterp.net/stufflog/server/models"
+)
+
+// ActivityLoader batches and caches requests
+type ActivityLoader struct {
+	// this method provides the data for the loader
+	fetch func(keys []string) ([]*models.Activity, []error)
+
+	// how long to done before sending a batch
+	wait time.Duration
+
+	// this will limit the maximum number of keys to send in one batch, 0 = no limit
+	maxBatch int
+
+	// INTERNAL
+
+	// lazily created cache
+	cache map[string]*models.Activity
+
+	// the current batch. keys will continue to be collected until timeout is hit,
+	// then everything will be sent to the fetch method and out to the listeners
+	batch *activityLoaderBatch
+
+	// mutex to prevent races
+	mu sync.Mutex
+}
+
+type activityLoaderBatch struct {
+	keys    []string
+	data    []*models.Activity
+	error   []error
+	closing bool
+	done    chan struct{}
+}
+
+// Load a Activity by key, batching and caching will be applied automatically
+func (l *ActivityLoader) Load(key string) (*models.Activity, error) {
+	return l.LoadThunk(key)()
+}
+
+// LoadThunk returns a function that when called will block waiting for a Activity.
+// This method should be used if you want one goroutine to make requests to many
+// different data loaders without blocking until the thunk is called.
+func (l *ActivityLoader) LoadThunk(key string) func() (*models.Activity, error) {
+	l.mu.Lock()
+	if it, ok := l.cache[key]; ok {
+		l.mu.Unlock()
+		return func() (*models.Activity, error) {
+			return it, nil
+		}
+	}
+	if l.batch == nil {
+		l.batch = &activityLoaderBatch{done: make(chan struct{})}
+	}
+	batch := l.batch
+	pos := batch.keyIndex(l, key)
+	l.mu.Unlock()
+
+	return func() (*models.Activity, error) {
+		<-batch.done
+
+		var data *models.Activity
+		if pos < len(batch.data) {
+			data = batch.data[pos]
+		}
+
+		var err error
+		// its convenient to be able to return a single error for everything
+		if len(batch.error) == 1 {
+			err = batch.error[0]
+		} else if batch.error != nil {
+			err = batch.error[pos]
+		}
+
+		if err == nil {
+			l.mu.Lock()
+			l.unsafeSet(key, data)
+			l.mu.Unlock()
+		}
+
+		return data, err
+	}
+}
+
+// LoadAll fetches many keys at once. It will be broken into appropriate sized
+// sub batches depending on how the loader is configured
+func (l *ActivityLoader) LoadAll(keys []string) ([]*models.Activity, []error) {
+	results := make([]func() (*models.Activity, error), len(keys))
+
+	for i, key := range keys {
+		results[i] = l.LoadThunk(key)
+	}
+
+	activitys := make([]*models.Activity, len(keys))
+	errors := make([]error, len(keys))
+	for i, thunk := range results {
+		activitys[i], errors[i] = thunk()
+	}
+	return activitys, errors
+}
+
+// LoadAllThunk returns a function that when called will block waiting for a Activitys.
+// This method should be used if you want one goroutine to make requests to many
+// different data loaders without blocking until the thunk is called.
+func (l *ActivityLoader) LoadAllThunk(keys []string) func() ([]*models.Activity, []error) {
+	results := make([]func() (*models.Activity, error), len(keys))
+	for i, key := range keys {
+		results[i] = l.LoadThunk(key)
+	}
+	return func() ([]*models.Activity, []error) {
+		activitys := make([]*models.Activity, len(keys))
+		errors := make([]error, len(keys))
+		for i, thunk := range results {
+			activitys[i], errors[i] = thunk()
+		}
+		return activitys, errors
+	}
+}
+
+// Prime the cache with the provided key and value. If the key already exists, no change is made
+// and false is returned.
+// (To forcefully prime the cache, clear the key first with loader.clear(key).prime(key, value).)
+func (l *ActivityLoader) Prime(key string, value *models.Activity) bool {
+	l.mu.Lock()
+	var found bool
+	if _, found = l.cache[key]; !found {
+		// make a copy when writing to the cache, its easy to pass a pointer in from a loop var
+		// and end up with the whole cache pointing to the same value.
+		cpy := *value
+		l.unsafeSet(key, &cpy)
+	}
+	l.mu.Unlock()
+	return !found
+}
+
+// Clear the value at key from the cache, if it exists
+func (l *ActivityLoader) Clear(key string) {
+	l.mu.Lock()
+	delete(l.cache, key)
+	l.mu.Unlock()
+}
+
+func (l *ActivityLoader) unsafeSet(key string, value *models.Activity) {
+	if l.cache == nil {
+		l.cache = map[string]*models.Activity{}
+	}
+	l.cache[key] = value
+}
+
+// keyIndex will return the location of the key in the batch, if its not found
+// it will add the key to the batch
+func (b *activityLoaderBatch) keyIndex(l *ActivityLoader, key string) int {
+	for i, existingKey := range b.keys {
+		if key == existingKey {
+			return i
+		}
+	}
+
+	pos := len(b.keys)
+	b.keys = append(b.keys, key)
+	if pos == 0 {
+		go b.startTimer(l)
+	}
+
+	if l.maxBatch != 0 && pos >= l.maxBatch-1 {
+		if !b.closing {
+			b.closing = true
+			l.batch = nil
+			go b.end(l)
+		}
+	}
+
+	return pos
+}
+
+func (b *activityLoaderBatch) startTimer(l *ActivityLoader) {
+	time.Sleep(l.wait)
+	l.mu.Lock()
+
+	// we must have hit a batch limit and are already finalizing this batch
+	if b.closing {
+		l.mu.Unlock()
+		return
+	}
+
+	l.batch = nil
+	l.mu.Unlock()
+
+	b.end(l)
+}
+
+func (b *activityLoaderBatch) end(l *ActivityLoader) {
+	b.data, b.error = l.fetch(b.keys)
+	close(b.done)
+}

graph/loaders/context.go

@@ -0,0 +1,18 @@
+package loaders
+
+import (
+	"context"
+
+	"git.aiterp.net/stufflog/server/database"
+	"git.aiterp.net/stufflog/server/models"
+)
+
+func ContextWithLoaders(ctx context.Context, user *models.User, database database.Database) context.Context {
+	ctx = context.WithValue(ctx, logsByIssueLoaderCtxKey, NewLogsByIssueLoader(ctx, database.Logs()))
+	ctx = context.WithValue(ctx, userLoaderCtxKey, NewUserLoader(ctx, database.Users()))
+	ctx = context.WithValue(ctx, projectPermissionCtxKey, NewProjectPermissionLoader(ctx, user, database.Projects()))
+	ctx = context.WithValue(ctx, issueLoaderCtxKey, NewIssueLoader(ctx, database.Issues()))
+	ctx = context.WithValue(ctx, activityLoaderCtxKey, NewActivityLoader(ctx, database.Activities()))
+
+	return ctx
+}

graph/loaders/issueloader.go

@@ -0,0 +1,54 @@
+package loaders
+
+import (
+	"context"
+	"git.aiterp.net/stufflog/server/database/repositories"
+	"git.aiterp.net/stufflog/server/internal/slerrors"
+	"git.aiterp.net/stufflog/server/models"
+	"time"
+)
+
+// go run github.com/vektah/dataloaden IssueLoader string \*git.aiterp.net/stufflog/server/models.Issue
+
+var issueLoaderCtxKey = "ctx.stufflog.IssueLoader"
+
+func IssueLoaderFromContext(ctx context.Context) *IssueLoader {
+	return ctx.Value(issueLoaderCtxKey).(*IssueLoader)
+}
+
+func NewIssueLoader(ctx context.Context, issueRepo repositories.IssueRepository) *IssueLoader {
+	return &IssueLoader{
+		fetch: func(keys []string) ([]*models.Issue, []error) {
+			results := make([]*models.Issue, len(keys))
+			errors := make([]error, len(keys))
+
+			issues, err := issueRepo.List(ctx, models.IssueFilter{IssueIDs: keys})
+			if err != nil {
+				for i := range errors {
+					errors[i] = err
+				}
+
+				return results, errors
+			}
+
+			for i, key := range keys {
+				found := false
+				for _, issue := range issues {
+					if issue.ID == key {
+						found = true
+						results[i] = issue
+						break
+					}
+				}
+
+				if !found {
+					errors[i] = slerrors.NotFound("Issue")
+				}
+			}
+
+			return results, errors
+		},
+		wait:     time.Millisecond / 2,
+		maxBatch: 16,
+	}
+}

graph/loaders/issueloader_gen.go

@@ -0,0 +1,203 @@
+// Code generated by github.com/vektah/dataloaden, DO EDIT.
+
+package loaders
+
+import (
+	"sync"
+	"time"
+
+	"git.aiterp.net/stufflog/server/models"
+)
+
+// IssueLoader batches and caches requests
+type IssueLoader struct {
+	// this method provides the data for the loader
+	fetch func(keys []string) ([]*models.Issue, []error)
+
+	// how long to done before sending a batch
+	wait time.Duration
+
+	// this will limit the maximum number of keys to send in one batch, 0 = no limit
+	maxBatch int
+
+	// INTERNAL
+
+	// lazily created cache
+	cache map[string]*models.Issue
+
+	// the current batch. keys will continue to be collected until timeout is hit,
+	// then everything will be sent to the fetch method and out to the listeners
+	batch *issueLoaderBatch
+
+	// mutex to prevent races
+	mu sync.Mutex
+}
+
+type issueLoaderBatch struct {
+	keys    []string
+	data    []*models.Issue
+	error   []error
+	closing bool
+	done    chan struct{}
+}
+
+// Load a Issue by key, batching and caching will be applied automatically
+func (l *IssueLoader) Load(key string) (*models.Issue, error) {
+	return l.LoadThunk(key)()
+}
+
+// LoadThunk returns a function that when called will block waiting for a Issue.
+// This method should be used if you want one goroutine to make requests to many
+// different data loaders without blocking until the thunk is called.
+func (l *IssueLoader) LoadThunk(key string) func() (*models.Issue, error) {
+	l.mu.Lock()
+	if it, ok := l.cache[key]; ok {
+		l.mu.Unlock()
+		return func() (*models.Issue, error) {
+			return it, nil
+		}
+	}
+	if l.batch == nil {
+		l.batch = &issueLoaderBatch{done: make(chan struct{})}
+	}
+	batch := l.batch
+	pos := batch.keyIndex(l, key)
+	l.mu.Unlock()
+
+	return func() (*models.Issue, error) {
+		<-batch.done
+
+		var data *models.Issue
+		if pos < len(batch.data) {
+			data = batch.data[pos]
+		}
+
+		var err error
+		// its convenient to be able to return a single error for everything
+		if len(batch.error) == 1 {
+			err = batch.error[0]
+		} else if batch.error != nil {
+			err = batch.error[pos]
+		}
+
+		if err == nil {
+			l.mu.Lock()
+			l.unsafeSet(key, data)
+			l.mu.Unlock()
+		}
+
+		return data, err
+	}
+}
+
+// LoadAll fetches many keys at once. It will be broken into appropriate sized
+// sub batches depending on how the loader is configured
+func (l *IssueLoader) LoadAll(keys []string) ([]*models.Issue, []error) {
+	results := make([]func() (*models.Issue, error), len(keys))
+
+	for i, key := range keys {
+		results[i] = l.LoadThunk(key)
+	}
+
+	issues := make([]*models.Issue, len(keys))
+	errors := make([]error, len(keys))
+	for i, thunk := range results {
+		issues[i], errors[i] = thunk()
+	}
+	return issues, errors
+}
+
+// LoadAllThunk returns a function that when called will block waiting for a Issues.
+// This method should be used if you want one goroutine to make requests to many
+// different data loaders without blocking until the thunk is called.
+func (l *IssueLoader) LoadAllThunk(keys []string) func() ([]*models.Issue, []error) {
+	results := make([]func() (*models.Issue, error), len(keys))
+	for i, key := range keys {
+		results[i] = l.LoadThunk(key)
+	}
+	return func() ([]*models.Issue, []error) {
+		issues := make([]*models.Issue, len(keys))
+		errors := make([]error, len(keys))
+		for i, thunk := range results {
+			issues[i], errors[i] = thunk()
+		}
+		return issues, errors
+	}
+}
+
+// Prime the cache with the provided key and value. If the key already exists, no change is made
+// and false is returned.
+// (To forcefully prime the cache, clear the key first with loader.clear(key).prime(key, value).)
+func (l *IssueLoader) Prime(key string, value *models.Issue) bool {
+	l.mu.Lock()
+	var found bool
+	if _, found = l.cache[key]; !found {
+		// make a copy when writing to the cache, its easy to pass a pointer in from a loop var
+		// and end up with the whole cache pointing to the same value.
+		cpy := *value
+		l.unsafeSet(key, &cpy)
+	}
+	l.mu.Unlock()
+	return !found
+}
+
+// Clear the value at key from the cache, if it exists
+func (l *IssueLoader) Clear(key string) {
+	l.mu.Lock()
+	delete(l.cache, key)
+	l.mu.Unlock()
+}
+
+func (l *IssueLoader) unsafeSet(key string, value *models.Issue) {
+	if l.cache == nil {
+		l.cache = map[string]*models.Issue{}
+	}
+	l.cache[key] = value
+}
+
+// keyIndex will return the location of the key in the batch, if its not found
+// it will add the key to the batch
+func (b *issueLoaderBatch) keyIndex(l *IssueLoader, key string) int {
+	for i, existingKey := range b.keys {
+		if key == existingKey {
+			return i
+		}
+	}
+
+	pos := len(b.keys)
+	b.keys = append(b.keys, key)
+	if pos == 0 {
+		go b.startTimer(l)
+	}
+
+	if l.maxBatch != 0 && pos >= l.maxBatch-1 {
+		if !b.closing {
+			b.closing = true
+			l.batch = nil
+			go b.end(l)
+		}
+	}
+
+	return pos
+}
+
+func (b *issueLoaderBatch) startTimer(l *IssueLoader) {
+	time.Sleep(l.wait)
+	l.mu.Lock()
+
+	// we must have hit a batch limit and are already finalizing this batch
+	if b.closing {
+		l.mu.Unlock()
+		return
+	}
+
+	l.batch = nil
+	l.mu.Unlock()
+
+	b.end(l)
+}
+
+func (b *issueLoaderBatch) end(l *IssueLoader) {
+	b.data, b.error = l.fetch(b.keys)
+	close(b.done)
+}

graph/loaders/logsbyissueloader.go

@@ -0,0 +1,46 @@
+package loaders
+
+import (
+	"context"
+	"git.aiterp.net/stufflog/server/database/repositories"
+	"git.aiterp.net/stufflog/server/models"
+	"time"
+)
+
+// go run github.com/vektah/dataloaden LogsByIssueLoader string []\*git.aiterp.net/stufflog/server/models.Log
+
+var logsByIssueLoaderCtxKey = "ctx.stufflog.IssuesByLogLoader"
+
+func LogsByIssueLoaderFromContext(ctx context.Context) *LogsByIssueLoader {
+	return ctx.Value(logsByIssueLoaderCtxKey).(*LogsByIssueLoader)
+}
+
+func NewLogsByIssueLoader(ctx context.Context, logsRepo repositories.LogRepository) *LogsByIssueLoader {
+	return &LogsByIssueLoader{
+		fetch: func(keys []string) ([][]*models.Log, []error) {
+			results := make([][]*models.Log, len(keys))
+			errors := make([]error, len(keys))
+
+			logs, err := logsRepo.List(ctx, models.LogFilter{IssueIDs: keys})
+			if err != nil {
+				for i := range errors {
+					errors[i] = err
+				}
+
+				return results, errors
+			}
+
+			for i, key := range keys {
+				for _, log := range logs {
+					if log.MatchesIssue(key) {
+						results[i] = append(results[i], log)
+					}
+				}
+			}
+
+			return results, nil
+		},
+		wait:     time.Millisecond / 2,
+		maxBatch: 16,
+	}
+}

graph/loaders/logsbyissueloader_gen.go

@@ -0,0 +1,204 @@
+// Code generated by github.com/vektah/dataloaden, DO EDIT.
+
+package loaders
+
+import (
+	"sync"
+	"time"
+
+	"git.aiterp.net/stufflog/server/models"
+)
+
+// LogsByIssueLoader batches and caches requests
+type LogsByIssueLoader struct {
+	// this method provides the data for the loader
+	fetch func(keys []string) ([][]*models.Log, []error)
+
+	// how long to done before sending a batch
+	wait time.Duration
+
+	// this will limit the maximum number of keys to send in one batch, 0 = no limit
+	maxBatch int
+
+	// INTERNAL
+
+	// lazily created cache
+	cache map[string][]*models.Log
+
+	// the current batch. keys will continue to be collected until timeout is hit,
+	// then everything will be sent to the fetch method and out to the listeners
+	batch *logsByIssueLoaderBatch
+
+	// mutex to prevent races
+	mu sync.Mutex
+}
+
+type logsByIssueLoaderBatch struct {
+	keys    []string
+	data    [][]*models.Log
+	error   []error
+	closing bool
+	done    chan struct{}
+}
+
+// Load a Log by key, batching and caching will be applied automatically
+func (l *LogsByIssueLoader) Load(key string) ([]*models.Log, error) {
+	return l.LoadThunk(key)()
+}
+
+// LoadThunk returns a function that when called will block waiting for a Log.
+// This method should be used if you want one goroutine to make requests to many
+// different data loaders without blocking until the thunk is called.
+func (l *LogsByIssueLoader) LoadThunk(key string) func() ([]*models.Log, error) {
+	l.mu.Lock()
+	if it, ok := l.cache[key]; ok {
+		l.mu.Unlock()
+		return func() ([]*models.Log, error) {
+			return it, nil
+		}
+	}
+	if l.batch == nil {
+		l.batch = &logsByIssueLoaderBatch{done: make(chan struct{})}
+	}
+	batch := l.batch
+	pos := batch.keyIndex(l, key)
+	l.mu.Unlock()
+
+	return func() ([]*models.Log, error) {
+		<-batch.done
+
+		var data []*models.Log
+		if pos < len(batch.data) {
+			data = batch.data[pos]
+		}
+
+		var err error
+		// its convenient to be able to return a single error for everything
+		if len(batch.error) == 1 {
+			err = batch.error[0]
+		} else if batch.error != nil {
+			err = batch.error[pos]
+		}
+
+		if err == nil {
+			l.mu.Lock()
+			l.unsafeSet(key, data)
+			l.mu.Unlock()
+		}
+
+		return data, err
+	}
+}
+
+// LoadAll fetches many keys at once. It will be broken into appropriate sized
+// sub batches depending on how the loader is configured
+func (l *LogsByIssueLoader) LoadAll(keys []string) ([][]*models.Log, []error) {
+	results := make([]func() ([]*models.Log, error), len(keys))
+
+	for i, key := range keys {
+		results[i] = l.LoadThunk(key)
+	}
+
+	logs := make([][]*models.Log, len(keys))
+	errors := make([]error, len(keys))
+	for i, thunk := range results {
+		logs[i], errors[i] = thunk()
+	}
+	return logs, errors
+}
+
+// LoadAllThunk returns a function that when called will block waiting for a Logs.
+// This method should be used if you want one goroutine to make requests to many
+// different data loaders without blocking until the thunk is called.
+func (l *LogsByIssueLoader) LoadAllThunk(keys []string) func() ([][]*models.Log, []error) {
+	results := make([]func() ([]*models.Log, error), len(keys))
+	for i, key := range keys {
+		results[i] = l.LoadThunk(key)
+	}
+	return func() ([][]*models.Log, []error) {
+		logs := make([][]*models.Log, len(keys))
+		errors := make([]error, len(keys))
+		for i, thunk := range results {
+			logs[i], errors[i] = thunk()
+		}
+		return logs, errors
+	}
+}
+
+// Prime the cache with the provided key and value. If the key already exists, no change is made
+// and false is returned.
+// (To forcefully prime the cache, clear the key first with loader.clear(key).prime(key, value).)
+func (l *LogsByIssueLoader) Prime(key string, value []*models.Log) bool {
+	l.mu.Lock()
+	var found bool
+	if _, found = l.cache[key]; !found {
+		// make a copy when writing to the cache, its easy to pass a pointer in from a loop var
+		// and end up with the whole cache pointing to the same value.
+		cpy := make([]*models.Log, len(value))
+		copy(cpy, value)
+		l.unsafeSet(key, cpy)
+	}
+	l.mu.Unlock()
+	return !found
+}
+
+// Clear the value at key from the cache, if it exists
+func (l *LogsByIssueLoader) Clear(key string) {
+	l.mu.Lock()
+	delete(l.cache, key)
+	l.mu.Unlock()
+}
+
+func (l *LogsByIssueLoader) unsafeSet(key string, value []*models.Log) {
+	if l.cache == nil {
+		l.cache = map[string][]*models.Log{}
+	}
+	l.cache[key] = value
+}
+
+// keyIndex will return the location of the key in the batch, if its not found
+// it will add the key to the batch
+func (b *logsByIssueLoaderBatch) keyIndex(l *LogsByIssueLoader, key string) int {
+	for i, existingKey := range b.keys {
+		if key == existingKey {
+			return i
+		}
+	}
+
+	pos := len(b.keys)
+	b.keys = append(b.keys, key)
+	if pos == 0 {
+		go b.startTimer(l)
+	}
+
+	if l.maxBatch != 0 && pos >= l.maxBatch-1 {
+		if !b.closing {
+			b.closing = true
+			l.batch = nil
+			go b.end(l)
+		}
+	}
+
+	return pos
+}
+
+func (b *logsByIssueLoaderBatch) startTimer(l *LogsByIssueLoader) {
+	time.Sleep(l.wait)
+	l.mu.Lock()
+
+	// we must have hit a batch limit and are already finalizing this batch
+	if b.closing {
+		l.mu.Unlock()
+		return
+	}
+
+	l.batch = nil
+	l.mu.Unlock()
+
+	b.end(l)
+}
+
+func (b *logsByIssueLoaderBatch) end(l *LogsByIssueLoader) {
+	b.data, b.error = l.fetch(b.keys)
+	close(b.done)
+}

graph/loaders/projectpermissionloader.go

@@ -0,0 +1,56 @@
+package loaders
+
+import (
+	"context"
+	"git.aiterp.net/stufflog/server/database/repositories"
+	"git.aiterp.net/stufflog/server/models"
+	"time"
+)
+
+var projectPermissionCtxKey = "ctx.stufflog.ProjectPermissionLoader"
+
+func ProjectPermissionLoaderFromContext(ctx context.Context) *ProjectPermissionLoader {
+	return ctx.Value(projectPermissionCtxKey).(*ProjectPermissionLoader)
+}
+
+func NewProjectPermissionLoader(ctx context.Context, user *models.User, projectRepo repositories.ProjectRepository) *ProjectPermissionLoader {
+	return &ProjectPermissionLoader{
+		wait:     time.Millisecond / 2,
+		maxBatch: 16,
+		fetch: func(keys []string) ([]*models.ProjectPermission, []error) {
+			errors := make([]error, len(keys))
+			results := make([]*models.ProjectPermission, len(keys))
+
+			if user == nil {
+				for i, key := range keys {
+					results[i] = &models.ProjectPermission{
+						ProjectID: key,
+						UserID:    "",
+						Level:     models.ProjectPermissionLevelNoAccess,
+					}
+				}
+				return results, errors
+			}
+
+			indices := make(map[string]int)
+			for i, key := range keys {
+				indices[key] = i
+			}
+
+			permissions, err := projectRepo.GetUserPermissions(ctx, *user, keys)
+			if err != nil {
+				for i := range errors {
+					errors[i] = err
+				}
+
+				return results, errors
+			}
+
+			for _, permission := range permissions {
+				results[indices[permission.ProjectID]] = permission
+			}
+
+			return results, errors
+		},
+	}
+}

graph/loaders/projectpermissionloader_gen.go

@@ -1,4 +1,4 @@
-// Code generated by github.com/vektah/dataloaden, DO NOT EDIT.
+// Code generated by github.com/vektah/dataloaden, DO EDIT.
 
 package loaders
 
@@ -9,27 +9,6 @@ import (
 	"git.aiterp.net/stufflog/server/models"
 )
 
-// ProjectPermissionLoaderConfig captures the config to create a new ProjectPermissionLoader
-type ProjectPermissionLoaderConfig struct {
-	// Fetch is a method that provides the data for the loader
-	Fetch func(keys []string) ([]*models.ProjectPermission, []error)
-
-	// Wait is how long wait before sending a batch
-	Wait time.Duration
-
-	// MaxBatch will limit the maximum number of keys to send in one batch, 0 = not limit
-	MaxBatch int
-}
-
-// NewProjectPermissionLoader creates a new ProjectPermissionLoader given a fetch, wait, and maxBatch
-func NewProjectPermissionLoader(config ProjectPermissionLoaderConfig) *ProjectPermissionLoader {
-	return &ProjectPermissionLoader{
-		fetch:    config.Fetch,
-		wait:     config.Wait,
-		maxBatch: config.MaxBatch,
-	}
-}
-
 // ProjectPermissionLoader batches and caches requests
 type ProjectPermissionLoader struct {
 	// this method provides the data for the loader

graph/loaders/userloader.go

@@ -12,18 +12,14 @@ import (
 
 var userLoaderCtxKey = "ctx.stufflog.UserLoader"
 
-func NewUserLoaderContext(ctx context.Context, userRepo repositories.UserRepository) context.Context {
-	return context.WithValue(ctx, userLoaderCtxKey, NewUserLoader(ctx, userRepo))
-}
-
 func UserLoaderFromContext(ctx context.Context) *UserLoader {
 	return ctx.Value(userLoaderCtxKey).(*UserLoader)
 }
 
 func NewUserLoader(ctx context.Context, userRepo repositories.UserRepository) *UserLoader {
 	return &UserLoader{
-		wait:     2 * time.Millisecond,
+		wait:     time.Millisecond / 4,
-		maxBatch: 100,
+		maxBatch: 4,
 		fetch: func(keys []string) ([]*models.User, []error) {
 			results := make([]*models.User, len(keys))
 			errors := make([]error, len(keys))

graph/loaders/userloader_gen.go

@@ -1,4 +1,4 @@
-// Code generated by github.com/vektah/dataloaden, DO NOT EDIT.
+// Code generated by github.com/vektah/dataloaden, DO EDIT.
 
 package loaders
 
@@ -9,18 +9,6 @@ import (
 	"git.aiterp.net/stufflog/server/models"
 )
 
-// UserLoaderConfig captures the config to create a new UserLoader
-type UserLoaderConfig struct {
-	// Fetch is a method that provides the data for the loader
-	Fetch func(keys []string) ([]*models.User, []error)
-
-	// Wait is how long wait before sending a batch
-	Wait time.Duration
-
-	// MaxBatch will limit the maximum number of keys to send in one batch, 0 = not limit
-	MaxBatch int
-}
-
 // UserLoader batches and caches requests
 type UserLoader struct {
 	// this method provides the data for the loader

graph/resolvers/issue.resolvers.go

@@ -94,7 +94,9 @@ func (r *issueResolver) Items(ctx context.Context, obj *models.Issue, filter *mo
 }
 
 func (r *issueResolver) Logs(ctx context.Context, obj *models.Issue) ([]*models.Log, error) {
-	logs, err := r.Database.Logs().List(ctx, models.LogFilter{IssueIDs: []string{obj.ID}})
+	loader := loaders.LogsByIssueLoaderFromContext(ctx)
+
+	logs, err := loader.Load(obj.ID)
 	if err != nil {
 		return nil, err
 	}

graph/resolvers/issueitem.resolvers.go

@@ -5,14 +5,14 @@ package resolvers
 
 import (
 	"context"
-	"fmt"
+	"git.aiterp.net/stufflog/server/graph/loaders"
 
 	"git.aiterp.net/stufflog/server/graph/graphcore"
 	"git.aiterp.net/stufflog/server/models"
 )
 
 func (r *issueItemResolver) Issue(ctx context.Context, obj *models.IssueItem) (*models.Issue, error) {
-	return r.Database.Issues().Find(ctx, obj.IssueID)
+	return loaders.IssueLoaderFromContext(ctx).Load(obj.IssueID)
 }
 
 func (r *issueItemResolver) Item(ctx context.Context, obj *models.IssueItem) (*models.Item, error) {
@@ -24,21 +24,23 @@ func (r *issueItemResolver) Remaining(ctx context.Context, obj *models.IssueItem
 		return 0, nil
 	}
 
-	// TODO: Use logs
+	loader := loaders.LogsByIssueLoaderFromContext(ctx)
-	return obj.Quantity, nil
+	logs, err := loader.Load(obj.IssueID)
+	if err != nil {
+		return 0, err
+	}
+
+	remaining := obj.Quantity
+	for _, log := range logs {
+		if item := log.Item(obj.ID); item != nil {
+			remaining -= item.Amount
+		}
+	}
+
+	return remaining, nil
 }
 
 // IssueItem returns graphcore.IssueItemResolver implementation.
 func (r *Resolver) IssueItem() graphcore.IssueItemResolver { return &issueItemResolver{r} }
 
 type issueItemResolver struct{ *Resolver }
-
-// !!! WARNING !!!
-// The code below was going to be deleted when updating resolvers. It has been copied here so you have
-// one last chance to move it out of harms way if you want. There are two reasons this happens:
-//  - When renaming or deleting a resolver the old code will be put in here. You can safely delete
-//    it when you're done.
-//  - You have helper methods in this file. Move them out to keep these resolver files clean.
-func (r *issueItemResolver) Quanity(ctx context.Context, obj *models.IssueItem) (int, error) {
-	panic(fmt.Errorf("not implemented"))
-}

graph/resolvers/issuetask.resolvers.go

@@ -6,19 +6,19 @@ package resolvers
 import (
 	"context"
 	"errors"
-	"fmt"
 	"strings"
 	"time"
 
 	"git.aiterp.net/stufflog/server/graph/graphcore"
 	"git.aiterp.net/stufflog/server/graph/graphutil"
+	"git.aiterp.net/stufflog/server/graph/loaders"
 	"git.aiterp.net/stufflog/server/internal/slerrors"
 	"git.aiterp.net/stufflog/server/models"
 )
 
 func (r *issueTaskResolver) EstimatedUnits(ctx context.Context, obj *models.IssueTask) (*int, error) {
 	// TODO: Data loader
-	activity, err := r.Database.Activities().Find(ctx, obj.ActivityID)
+	activity, err := loaders.ActivityLoaderFromContext(ctx).Load(obj.ActivityID)
 	if err != nil {
 		return nil, err
 	}
@@ -30,11 +30,11 @@ func (r *issueTaskResolver) EstimatedUnits(ctx context.Context, obj *models.Issu
 }
 
 func (r *issueTaskResolver) Issue(ctx context.Context, obj *models.IssueTask) (*models.Issue, error) {
-	return r.Database.Issues().Find(ctx, obj.IssueID)
+	return loaders.IssueLoaderFromContext(ctx).Load(obj.IssueID)
 }
 
 func (r *issueTaskResolver) Activity(ctx context.Context, obj *models.IssueTask) (*models.Activity, error) {
-	return r.Database.Activities().Find(ctx, obj.ActivityID)
+	return loaders.ActivityLoaderFromContext(ctx).Load(obj.ActivityID)
 }
 
 func (r *issueTaskResolver) Status(ctx context.Context, obj *models.IssueTask) (*models.ProjectStatus, error) {
@@ -79,11 +79,45 @@ func (r *issueTaskResolver) Status(ctx context.Context, obj *models.IssueTask) (
 }
 
 func (r *issueTaskResolver) RemainingTime(ctx context.Context, obj *models.IssueTask) (time.Duration, error) {
-	panic(fmt.Errorf("not implemented"))
+	loader := loaders.LogsByIssueLoaderFromContext(ctx)
+	logs, err := loader.Load(obj.IssueID)
+	if err != nil {
+		return 0, err
+	}
+
+	remaining := obj.EstimatedTime
+	for _, log := range logs {
+		if task := log.Task(obj.ID); task != nil {
+			remaining -= task.Duration
+		}
+	}
+
+	return remaining, nil
 }
 
 func (r *issueTaskResolver) RemainingUnits(ctx context.Context, obj *models.IssueTask) (*int, error) {
-	panic(fmt.Errorf("not implemented"))
+	activity, err := loaders.ActivityLoaderFromContext(ctx).Load(obj.ActivityID)
+	if err != nil {
+		return nil, err
+	}
+	if !activity.Countable || activity.UnitIsTimeSpent {
+		return nil, nil
+	}
+
+	loader := loaders.LogsByIssueLoaderFromContext(ctx)
+	logs, err := loader.Load(obj.IssueID)
+	if err != nil {
+		return nil, err
+	}
+
+	remaining := obj.EstimatedUnits
+	for _, log := range logs {
+		if task := log.Task(obj.ID); task != nil && task.Units != nil {
+			remaining -= *task.Units
+		}
+	}
+
+	return &remaining, nil
 }
 
 // IssueTask returns graphcore.IssueTaskResolver implementation.

graph/resolvers/log.resolvers.go

@@ -5,6 +5,7 @@ package resolvers
 
 import (
 	"context"
+	"git.aiterp.net/stufflog/server/graph/loaders"
 
 	"git.aiterp.net/stufflog/server/graph/graphcore"
 	"git.aiterp.net/stufflog/server/models"
@@ -15,7 +16,7 @@ func (r *logResolver) User(ctx context.Context, obj *models.Log) (*models.User,
 }
 
 func (r *logItemResolver) Issue(ctx context.Context, obj *models.LogItem) (*models.Issue, error) {
-	return r.Database.Issues().Find(ctx, obj.IssueID)
+	return loaders.IssueLoaderFromContext(ctx).Load(obj.IssueID)
 }
 
 func (r *logItemResolver) Item(ctx context.Context, obj *models.LogItem) (*models.IssueItem, error) {
@@ -23,7 +24,7 @@ func (r *logItemResolver) Item(ctx context.Context, obj *models.LogItem) (*model
 }
 
 func (r *logTaskResolver) Issue(ctx context.Context, obj *models.LogTask) (*models.Issue, error) {
-	return r.Database.Issues().Find(ctx, obj.IssueID)
+	return loaders.IssueLoaderFromContext(ctx).Load(obj.IssueID)
 }
 
 func (r *logTaskResolver) Task(ctx context.Context, obj *models.LogTask) (*models.IssueTask, error) {

graph/resolvers/mutation.resolvers.go

@@ -6,6 +6,7 @@ package resolvers
 import (
 	"context"
 	"errors"
+	"git.aiterp.net/stufflog/server/graph/loaders"
 	"log"
 	"sort"
 	"time"
@@ -59,7 +60,7 @@ func (r *mutationResolver) CreateActivity(ctx context.Context, input graphcore.A
 	if err != nil {
 		return nil, err
 	}
-	if perm, err := r.Auth.ProjectPermission(ctx, *project); err != nil || !perm.CanManageActivities() {
+	if perm, err := r.Auth.ProjectPermission(ctx, project.ID); err != nil || !perm.CanManageActivities() {
 		return nil, slerrors.PermissionDenied
 	}
 
@@ -101,7 +102,7 @@ func (r *mutationResolver) EditActivity(ctx context.Context, input graphcore.Act
 	if err != nil {
 		return nil, err
 	}
-	if perm, err := r.Auth.ProjectPermission(ctx, *project); err != nil || !perm.CanManageActivities() {
+	if perm, err := r.Auth.ProjectPermission(ctx, project.ID); err != nil || !perm.CanManageActivities() {
 		return nil, slerrors.PermissionDenied
 	}
 
@@ -261,7 +262,7 @@ func (r *mutationResolver) CreateIssue(ctx context.Context, input graphcore.Issu
 	if err != nil {
 		return nil, err
 	}
-	if perm, err := r.Auth.ProjectPermission(ctx, *project); err != nil || !perm.CanManageOwnIssue() {
+	if perm, err := r.Auth.ProjectPermission(ctx, project.ID); err != nil || !perm.CanManageOwnIssue() {
 		return nil, slerrors.PermissionDenied
 	}
 
@@ -295,6 +296,8 @@ func (r *mutationResolver) CreateIssue(ctx context.Context, input graphcore.Issu
 		return nil, err
 	}
 
+	loaders.IssueLoaderFromContext(ctx).Prime(issue.ID, issue)
+
 	return issue, nil
 }
 
@@ -304,7 +307,7 @@ func (r *mutationResolver) CreateIssueTask(ctx context.Context, input graphcore.
 		return nil, slerrors.PermissionDenied
 	}
 
-	issue, err := r.Database.Issues().Find(ctx, input.IssueID)
+	issue, err := loaders.IssueLoaderFromContext(ctx).Load(input.IssueID)
 	if err != nil {
 		return nil, err
 	}
@@ -317,7 +320,7 @@ func (r *mutationResolver) CreateIssueTask(ctx context.Context, input graphcore.
 		return nil, err
 	}
 
-	activity, err := r.Database.Activities().Find(ctx, input.ActivityID)
+	activity, err := loaders.ActivityLoaderFromContext(ctx).Load(input.ActivityID)
 	if err != nil {
 		return nil, err
 	} else if activity.ProjectID != issue.ProjectID {
@@ -361,7 +364,7 @@ func (r *mutationResolver) EditIssueTask(ctx context.Context, input graphcore.Is
 		return nil, err
 	}
 
-	issue, err := r.Database.Issues().Find(ctx, task.IssueID)
+	issue, err := loaders.IssueLoaderFromContext(ctx).Load(task.IssueID)
 	if err != nil {
 		return nil, err
 	}
@@ -382,7 +385,7 @@ func (r *mutationResolver) EditIssueTask(ctx context.Context, input graphcore.Is
 		task.EstimatedTime = *input.SetEstimatedTime
 	}
 	if input.SetEstimatedUnits != nil {
-		activity, err := r.Database.Activities().Find(ctx, task.ActivityID)
+		activity, err := loaders.ActivityLoaderFromContext(ctx).Load(task.ActivityID)
 		if err != nil {
 			return nil, err
 		}
@@ -418,7 +421,7 @@ func (r *mutationResolver) CreateIssueItem(ctx context.Context, input graphcore.
 		return nil, slerrors.PermissionDenied
 	}
 
-	issue, err := r.Database.Issues().Find(ctx, input.IssueID)
+	issue, err := loaders.IssueLoaderFromContext(ctx).Load(input.IssueID)
 	if err != nil {
 		return nil, err
 	}
@@ -452,7 +455,7 @@ func (r *mutationResolver) EditIssueItem(ctx context.Context, input graphcore.Is
 		return nil, err
 	}
 
-	issue, err := r.Database.Issues().Find(ctx, item.IssueID)
+	issue, err := loaders.IssueLoaderFromContext(ctx).Load(item.IssueID)
 	if err != nil {
 		return nil, err
 	}
@@ -495,7 +498,7 @@ func (r *mutationResolver) CreateLog(ctx context.Context, input graphcore.LogCre
 			return nil, err
 		}
 
-		issue, err := r.Database.Issues().Find(ctx, item.IssueID)
+		issue, err := loaders.IssueLoaderFromContext(ctx).Load(item.IssueID)
 		if err != nil {
 			return nil, err
 		}
@@ -516,7 +519,7 @@ func (r *mutationResolver) CreateLog(ctx context.Context, input graphcore.LogCre
 			return nil, err
 		}
 
-		issue, err := r.Database.Issues().Find(ctx, task.IssueID)
+		issue, err := loaders.IssueLoaderFromContext(ctx).Load(task.IssueID)
 		if err != nil {
 			return nil, err
 		}
@@ -583,7 +586,7 @@ func (r *mutationResolver) EditLog(ctx context.Context, input graphcore.LogEditI
 			return nil, err
 		}
 
-		issue, err := r.Database.Issues().Find(ctx, item.IssueID)
+		issue, err := loaders.IssueLoaderFromContext(ctx).Load(item.IssueID)
 		if err != nil {
 			return nil, err
 		}
@@ -605,7 +608,7 @@ func (r *mutationResolver) EditLog(ctx context.Context, input graphcore.LogEditI
 			return nil, err
 		}
 
-		issue, err := r.Database.Issues().Find(ctx, task.IssueID)
+		issue, err := loaders.IssueLoaderFromContext(ctx).Load(task.IssueID)
 		if err != nil {
 			return nil, err
 		}

graph/resolvers/project.resolvers.go

@@ -17,7 +17,7 @@ func (r *projectResolver) Issues(ctx context.Context, obj *models.Project, filte
 		filter = &graphcore.ProjectIssueFilter{}
 	}
 
-	return r.Database.Issues().List(ctx, models.IssueFilter{
+	issues, err := r.Database.Issues().List(ctx, models.IssueFilter{
 		ProjectIDs:  []string{obj.ID},
 		AssigneeIDs: filter.AssigneeIds,
 		Search:      filter.Search,
@@ -25,10 +25,20 @@ func (r *projectResolver) Issues(ctx context.Context, obj *models.Project, filte
 		MaxStage:    filter.MaxStage,
 		Limit:       filter.Limit,
 	})
+	if err != nil {
+		return nil, err
+	}
+
+	loader := loaders.IssueLoaderFromContext(ctx)
+	for _, issue := range issues {
+		loader.Prime(issue.ID, issue)
+	}
+
+	return issues, nil
 }
 
 func (r *projectResolver) Permissions(ctx context.Context, obj *models.Project) ([]*models.ProjectPermission, error) {
-	if perm, err := r.Auth.ProjectPermission(ctx, *obj); err != nil || !perm.CanManagePermissions() {
+	if perm, err := r.Auth.ProjectPermission(ctx, obj.ID); err != nil || !perm.CanManagePermissions() {
 		return nil, slerrors.PermissionDenied
 	}
 
@@ -36,7 +46,7 @@ func (r *projectResolver) Permissions(ctx context.Context, obj *models.Project)
 }
 
 func (r *projectResolver) UserPermissions(ctx context.Context, obj *models.Project) (*models.ProjectPermission, error) {
-	return r.Auth.ProjectPermission(ctx, *obj)
+	return r.Auth.ProjectPermission(ctx, obj.ID)
 }
 
 func (r *projectResolver) Statuses(ctx context.Context, obj *models.Project, filter *models.ProjectStatusFilter) ([]*models.ProjectStatus, error) {

graph/resolvers/query.resolvers.go

@@ -6,6 +6,7 @@ package resolvers
 import (
 	"context"
 	"errors"
+	"git.aiterp.net/stufflog/server/graph/loaders"
 
 	"git.aiterp.net/stufflog/server/graph/graphcore"
 	"git.aiterp.net/stufflog/server/internal/slerrors"
@@ -18,7 +19,8 @@ func (r *queryResolver) Issue(ctx context.Context, id string) (*models.Issue, er
 		return nil, slerrors.PermissionDenied
 	}
 
-	issue, err := r.Database.Issues().Find(ctx, id)
+	issue, err := loaders.IssueLoaderFromContext(ctx).Load(id)
+
 	if err != nil {
 		return nil, err
 	}
@@ -44,6 +46,11 @@ func (r *queryResolver) Issues(ctx context.Context, filter *models.IssueFilter)
 		return nil, err
 	}
 
+	loader := loaders.IssueLoaderFromContext(ctx)
+	for _, issue := range issues {
+		loader.Prime(issue.ID, issue)
+	}
+
 	deleteList := make([]int, 0, len(issues))
 	for i, issue := range issues {
 		_, err := r.Auth.IssuePermission(ctx, *issue)
@@ -100,7 +107,7 @@ func (r *queryResolver) IssueItem(ctx context.Context, id string) (*models.Issue
 		return nil, err
 	}
 
-	issue, err := r.Database.Issues().Find(ctx, item.IssueID)
+	issue, err := loaders.IssueLoaderFromContext(ctx).Load(id)
 	if err != nil {
 		return nil, err
 	}
@@ -138,7 +145,7 @@ func (r *queryResolver) IssueItems(ctx context.Context, filter *models.IssueItem
 			continue
 		}
 
-		issue, err := r.Database.Issues().Find(ctx, item.IssueID)
+		issue, err := loaders.IssueLoaderFromContext(ctx).Load(item.IssueID)
 		if err != nil {
 			deleteList = append(deleteList, i-len(deleteList))
 			accessMap[item.IssueID] = true
@@ -169,7 +176,7 @@ func (r *queryResolver) Project(ctx context.Context, id string) (*models.Project
 	if err != nil {
 		return nil, err
 	}
-	_, err = r.Auth.ProjectPermission(ctx, *project)
+	_, err = r.Auth.ProjectPermission(ctx, project.ID)
 	if err != nil {
 		return nil, err
 	}
@@ -203,7 +210,7 @@ func (r *queryResolver) Projects(ctx context.Context, filter *models.ProjectFilt
 	if !skipCheck && len(projects) > 0 {
 		deleteList := make([]int, 0, 4)
 		for i, project := range projects {
-			if _, err := r.Auth.ProjectPermission(ctx, *project); err != nil {
+			if _, err := r.Auth.ProjectPermission(ctx, project.ID); err != nil {
 				deleteList = append(deleteList, i-len(deleteList))
 			}
 		}

models/log.go

@@ -12,10 +12,76 @@ type Log struct {
 	Tasks []LogTask
 }
 
+func (log *Log) Copy() *Log {
+	newLog := *log
+	newLog.Items = append(newLog.Items[:0:0], log.Items...)
+	newLog.Tasks = append(newLog.Tasks[:0:0], log.Tasks...)
+
+	return &newLog
+}
+
 func (log *Log) Empty() bool {
 	return len(log.Items) == 0 && len(log.Tasks) == 0
 }
 
+func (log *Log) MatchesIssue(issueID string) bool {
+	for _, item := range log.Items {
+		if item.IssueID == issueID {
+			return true
+		}
+	}
+
+	for _, task := range log.Tasks {
+		if task.IssueID == issueID {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (log *Log) MatchesIssueTask(issueTaskID string) bool {
+	for _, task := range log.Tasks {
+		if task.IssueTaskID == issueTaskID {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (log *Log) MatchesIssueItem(issueItemID string) bool {
+	for _, item := range log.Items {
+		if item.IssueItemID == issueItemID {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (log *Log) Task(issueTaskID string) *LogTask {
+	for i := range log.Tasks {
+		task := &log.Tasks[i]
+		if task.IssueTaskID == issueTaskID {
+			return task
+		}
+	}
+
+	return nil
+}
+
+func (log *Log) Item(issueItemID string) *LogItem {
+	for i := range log.Items {
+		item := &log.Items[i]
+		if item.IssueItemID == issueItemID {
+			return item
+		}
+	}
+
+	return nil
+}
+
 type LogTask struct {
 	LogID       string        `db:"log_id"`
 	IssueID     string        `db:"issue_id"`

services/auth.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"git.aiterp.net/stufflog/server/database/repositories"
+	"git.aiterp.net/stufflog/server/graph/loaders"
 	"git.aiterp.net/stufflog/server/internal/generate"
 	"git.aiterp.net/stufflog/server/internal/slerrors"
 	"git.aiterp.net/stufflog/server/models"
@@ -112,13 +113,13 @@ func (auth *Auth) UserFromContext(ctx context.Context) *models.User {
 	return user
 }
 
-func (auth *Auth) ProjectPermission(ctx context.Context, project models.Project) (*models.ProjectPermission, error) {
+func (auth *Auth) ProjectPermission(ctx context.Context, projectID string) (*models.ProjectPermission, error) {
 	user := auth.UserFromContext(ctx)
 	if user == nil || !user.Active {
 		return nil, slerrors.PermissionDenied
 	}
 
-	permission, err := auth.projects.GetPermission(ctx, project, *user)
+	permission, err := loaders.ProjectPermissionLoaderFromContext(ctx).Load(projectID)
 	if err != nil {
 		return nil, ErrInternalPermissionFailure
 	}
@@ -137,7 +138,7 @@ func (auth *Auth) IssuePermission(ctx context.Context, issue models.Issue) (*mod
 
 	isOwnedOrAssigned := issue.AssigneeID == user.ID || issue.OwnerID == user.ID
 
-	permission, err := auth.projects.GetIssuePermission(ctx, issue, *user)
+	permission, err := loaders.ProjectPermissionLoaderFromContext(ctx).Load(issue.ProjectID)
 	if err != nil {
 		return nil, ErrInternalPermissionFailure
 	}
@@ -227,6 +228,17 @@ func (auth *Auth) EditUser(ctx context.Context, username string, setName *string
 	return user, nil
 }
 
+func (auth *Auth) FilterLogListCopy(ctx context.Context, logs []*models.Log) []*models.Log {
+	logs2 := make([]*models.Log, 0, len(logs))
+	for _, log := range logs {
+		logs2 = append(logs2, log.Copy())
+	}
+
+	auth.FilterLogList(ctx, &logs2)
+
+	return logs2
+}
+
 func (auth *Auth) FilterLogList(ctx context.Context, logs *[]*models.Log) {
 	user := auth.UserFromContext(ctx)
 	if user == nil {
@@ -270,7 +282,7 @@ func (auth *Auth) FilterLog(ctx context.Context, logs ...*models.Log) {
 				continue
 			}
 
-			issue, err := auth.issues.Find(ctx, item.IssueID)
+			issue, err := loaders.IssueLoaderFromContext(ctx).Load(item.IssueID)
 			if err != nil {
 				deleteList = append(deleteList, i-len(deleteList))
 				accessMap[item.IssueID] = true
@@ -296,7 +308,7 @@ func (auth *Auth) FilterLog(ctx context.Context, logs ...*models.Log) {
 				continue
 			}
 
-			issue, err := auth.issues.Find(ctx, task.IssueID)
+			issue, err := loaders.IssueLoaderFromContext(ctx).Load(task.IssueID)
 			if err != nil {
 				deleteList = append(deleteList, i-len(deleteList))
 				accessMap[task.IssueID] = true