public async Task SetPhotoState(UserId userId, PhotoId photoId, PhotoState photoState)
{
logWriter.LogInformation($"{nameof(SetPhotoState)}({nameof(userId)} = '{userId}', {nameof(photoId)} = '{photoId}', {nameof(photoState)} = '{photoState}'");
var request = new UpdateItemRequest
{
TableName = tableName,
Key = new Dictionary <string, AttributeValue>
{
{ FieldMappings.PartitionKey, new AttributeValue(photoId.ToDbValue()) },
{ FieldMappings.SortKey, new AttributeValue(photoId.ToDbValue()) }
},
UpdateExpression = $"SET {FieldMappings.Photo.State} = :newstate",
ExpressionAttributeValues = new Dictionary <string, AttributeValue>
{
{
":newstate", new AttributeValue
{
S = photoState.ToString()
}
}
}
};
await dynamoDbCore.UpdateItem(request);
}
public Task UpdateLikeCount(PhotoModel photo, int count)
{
UpdateItemRequest setLikeCountForPhotoRequest = GetLikeCountUpdateRequest(Mappers.PhotoModel.ToDbKey(photo), count);
var requests = photo.Hashtags
.Select(hashtag => GetLikeCountUpdateRequest(Mappers.Hashtag.ToDbKey(hashtag), count))
.Union(new[] { setLikeCountForPhotoRequest });
return(Task.WhenAll(requests.Select(x => dynamoDbCore.UpdateItem(x))));
}
public async Task <IEnumerable <OnlineProfile> > AddSocialProfile(OnlineProfile onlineProfile, UserId userId)
{
var user = await GetUserById(userId);
var onlineProfiles = user.OnlineProfiles?.ToList() ?? new List <OnlineProfile>();
var existingProfile = onlineProfiles.FirstOrDefault(x =>
x.Type == onlineProfile.Type &&
x.Profile.Equals(onlineProfile.Profile, StringComparison.OrdinalIgnoreCase));
if (existingProfile != null)
{
// if the online profile was found, just update it (might be casing differences)
existingProfile.Profile = onlineProfile.Profile;
}
else
{
onlineProfiles.Add(onlineProfile);
}
user.OnlineProfiles = onlineProfiles;
UpdateItemRequest request = new UpdateItemRequest
{
TableName = tableName,
Key = Mappers.UserModel.ToDbKey(user),
ExpressionAttributeNames = new Dictionary <string, string>
{
{ "#OnlineProfiles", FieldMappings.User.OnlineProfiles }
},
ExpressionAttributeValues = new Dictionary <string, AttributeValue>
{
{ ":OnlineProfiles", Mappers.UserModel.ToDbItem(user)[FieldMappings.User.OnlineProfiles] }
},
UpdateExpression = "SET #OnlineProfiles = :OnlineProfiles"
};
await dynamoDbCore.UpdateItem(request);
return(user.OnlineProfiles);
}
private async Task UpdateCommentCountAndScore(PhotoModel photo, int countDelta, double scoreDelta)
{
var updateItemRequests = (new[]
{
GetCommentCountAndScoreUpdateRequest(Mappers.PhotoModel.ToDbKey(photo), countDelta, scoreDelta)
})
.Union(photo.Hashtags.Select(hashtag =>
GetCommentCountUpdateRequest(Mappers.HashtagPhoto.ToDbKey(new HashtagPhoto {
Hashtag = hashtag, Photo = photo
}), countDelta)));
await Task.WhenAll(updateItemRequests.Select(request => dynamoDbCore.UpdateItem(request)));
}
private async Task UpdateCommentCount(PhotoModel photo, int count)
{
if (count < 0)
{
count = 0;
}
var updateItemRequests = (new[]
{
GetCommentCountUpdateRequest(Mappers.PhotoModel.ToDbKey(photo), count)
})
.Union(photo.Hashtags.Select(hashtag =>
GetCommentCountUpdateRequest(Mappers.HashtagPhoto.ToDbKey(new HashtagPhoto {
Hashtag = hashtag, Photo = photo
}), count)));
await Task.WhenAll(updateItemRequests.Select(request => dynamoDbCore.UpdateItem(request)));
}