42 lines
1.5 KiB
C#
42 lines
1.5 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using Iesi.Collections.Generic;
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using Portoa.Persistence;
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namespace VideoGameQuotes.Api {
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public class Quote : Entity<Quote, int> {
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private readonly Iesi.Collections.Generic.ISet<Vote> votes = new HashedSet<Vote>();
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private readonly Iesi.Collections.Generic.ISet<QuoteFlag> flags = new HashedSet<QuoteFlag>();
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public virtual User Creator { get; set; }
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public virtual DateTime Created { get; set; }
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public virtual DateTime? Modified { get; set; }
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public virtual string Text { get; set; }
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public virtual Game Game { get; set; }
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public virtual IEnumerable<Vote> Votes { get { return votes; } }
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public virtual IEnumerable<QuoteFlag> Flags { get { return flags; } }
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public virtual void VoteFor(User user, VoteDirection direction) {
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var currentVote = votes.SingleOrDefault(vote => vote.Voter == user);
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if (currentVote != null) {
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if (currentVote.Direction == direction) {
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throw new CannotVoteTwiceException();
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}
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votes.Remove(currentVote);
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currentVote.Direction = direction;
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votes.Add(currentVote);
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} else {
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votes.Add(new Vote { Direction = direction, Quote = this, Voter = user });
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}
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}
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public virtual int UpVotes { get { return Votes.Count(vote => vote.Direction == VoteDirection.Up); } }
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public virtual int DownVotes { get { return Votes.Count(vote => vote.Direction == VoteDirection.Down); } }
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public virtual int NetVotes { get { return Votes.Sum(vote => (int)vote); } }
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}
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}
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