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participants.go
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/
participants.go
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package study
import (
"log/slog"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"golang.org/x/net/context"
studyTypes "github.com/case-framework/case-backend/pkg/study/types"
)
func (dbService *StudyDBService) CreateIndexForParticipantsCollection(instanceID string, studyKey string) error {
ctx, cancel := dbService.getContext()
defer cancel()
collection := dbService.collectionParticipants(instanceID, studyKey)
indexes := []mongo.IndexModel{
{
Keys: bson.D{
{Key: "participantID", Value: 1},
},
Options: options.Index().SetUnique(true),
},
{
Keys: bson.D{
{Key: "studyStatus", Value: 1},
},
},
{
Keys: bson.D{
{Key: "enteredAt", Value: 1},
},
},
{
Keys: bson.D{
{Key: "messages.scheduledFor", Value: 1},
{Key: "studyStatus", Value: 1},
},
},
{
Keys: bson.D{
{Key: "messages.scheduledFor", Value: 1},
},
},
}
_, err := collection.Indexes().CreateMany(ctx, indexes)
return err
}
func (dbService *StudyDBService) SaveParticipantState(instanceID string, studyKey string, pState studyTypes.Participant) (studyTypes.Participant, error) {
ctx, cancel := dbService.getContext()
defer cancel()
filter := bson.M{"participantID": pState.ParticipantID}
upsert := true
rd := options.After
options := options.FindOneAndReplaceOptions{
Upsert: &upsert,
ReturnDocument: &rd,
}
elem := studyTypes.Participant{}
err := dbService.collectionParticipants(instanceID, studyKey).FindOneAndReplace(
ctx, filter, pState, &options,
).Decode(&elem)
return elem, err
}
// get participant by id
func (dbService *StudyDBService) GetParticipantByID(instanceID string, studyKey string, participantID string) (participant studyTypes.Participant, err error) {
ctx, cancel := dbService.getContext()
defer cancel()
filter := bson.M{
"participantID": participantID,
}
err = dbService.collectionParticipants(instanceID, studyKey).FindOne(ctx, filter).Decode(&participant)
return participant, err
}
// get paginated set of participants
func (dbService *StudyDBService) GetParticipants(instanceID string, studyKey string, filter bson.M, sort bson.M, page int64, limit int64) (participants []studyTypes.Participant, paginationInfo *PaginationInfos, err error) {
ctx, cancel := dbService.getContext()
defer cancel()
count, err := dbService.GetParticipantCount(instanceID, studyKey, filter)
if err != nil {
return participants, paginationInfo, err
}
paginationInfo = prepPaginationInfos(
count,
page,
limit,
)
skip := (paginationInfo.CurrentPage - 1) * paginationInfo.PageSize
opts := options.Find()
opts.SetSort(sort)
opts.SetSkip(skip)
opts.SetLimit(paginationInfo.PageSize)
cursor, err := dbService.collectionParticipants(instanceID, studyKey).Find(ctx, filter, opts)
if err != nil {
return participants, nil, err
}
defer cursor.Close(ctx)
err = cursor.All(ctx, &participants)
return participants, paginationInfo, err
}
// get participant count for filter
func (dbService *StudyDBService) GetParticipantCount(instanceID string, studyKey string, filter bson.M) (int64, error) {
ctx, cancel := dbService.getContext()
defer cancel()
return dbService.collectionParticipants(instanceID, studyKey).CountDocuments(ctx, filter)
}
// execute function on participants
func (dbService *StudyDBService) FindAndExecuteOnParticipantsStates(
ctx context.Context,
instanceID string,
studyKey string,
filter bson.M,
sort bson.M,
returnOnErr bool,
fn func(dbService *StudyDBService, p studyTypes.Participant, instanceID string, studyKey string, args ...interface{}) error,
args ...interface{},
) error {
opts := options.Find()
opts.SetSort(sort)
cursor, err := dbService.collectionParticipants(instanceID, studyKey).Find(ctx, filter, opts)
if err != nil {
return err
}
defer cursor.Close(ctx)
for cursor.Next(ctx) {
var participant studyTypes.Participant
if err = cursor.Decode(&participant); err != nil {
return err
}
if err = fn(
dbService,
participant,
instanceID,
studyKey,
args...,
); err != nil {
slog.Error("Error executing function on participant", slog.String("participantID", participant.ParticipantID), slog.String("error", err.Error()))
if returnOnErr {
return err
}
continue
}
}
return nil
}
// delete participant
func (dbService *StudyDBService) DeleteParticipantByID(instanceID string, studyKey string, participantID string) error {
ctx, cancel := dbService.getContext()
defer cancel()
filter := bson.M{
"participantID": participantID,
}
res, err := dbService.collectionParticipants(instanceID, studyKey).DeleteOne(ctx, filter)
if err != nil {
return err
}
if res.DeletedCount == 0 {
return mongo.ErrNoDocuments
}
return nil
}
func (dbService *StudyDBService) DeleteMessagesFromParticipant(instanceID string, studyKey string, participantID string, messageIDs []string) error {
ctx, cancel := dbService.getContext()
defer cancel()
filter := bson.M{"participantID": participantID}
update := bson.M{"$pull": bson.M{"messages": bson.M{
"id": bson.M{"$in": messageIDs},
}}}
_, err := dbService.collectionParticipants(instanceID, studyKey).UpdateOne(ctx, filter, update)
return err
}