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4
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1 local Luan = require "luan:Luan.luan"
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2 local error = Luan.error
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3 local ipairs = Luan.ipairs or error()
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7
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4 local Table = require "luan:Table.luan"
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5 local concat = Table.concat or error()
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6 local is_empty = Table.is_empty or error()
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4
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7 local Time = require "luan:Time.luan"
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8 local time_now = Time.now or error()
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9 local Db = require "site:/lib/Db.luan"
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10 local run_in_transaction = Db.run_in_transaction or error()
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11
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12
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13 local Chat = {}
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14
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15 local function from_doc(doc)
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16 doc.type == "chat" or error "wrong type"
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17 return Chat.new {
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18 id = doc.id
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19 user_ids = doc.chat_user_ids
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20 updated = doc.chat_updated
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21 }
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22 end
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23
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24 local function to_doc(chat)
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25 return {
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26 type = "chat"
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27 id = chat.id
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28 chat_user_ids = chat.user_ids or error()
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29 chat_updated = chat.updated or error()
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30 }
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31 end
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32
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33 function Chat.new(chat)
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34 chat.updated = chat.updated or time_now()
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35
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36 function chat.save()
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37 local doc = to_doc(chat)
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38 Db.save(doc)
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39 chat.id = doc.id
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40 end
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41
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42 function chat.delete()
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43 run_in_transaction( function()
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44 local id = chat.id
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11
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45 Db.delete("post_chat_id:"..id)
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4
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46 Db.delete("id:"..id)
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47 end )
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48 end
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49
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7
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50 function chat.other_users_email(user)
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51 local User = require "site:/lib/User.luan"
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52 local get_user_by_id = User.get_by_id or error()
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53
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54 local my_id = user.id
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55 local t = {}
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56 for _, user_id in ipairs(chat.user_ids) do
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57 if user_id ~= my_id then
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58 local other_user = get_user_by_id(user_id) or error()
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59 t[#t+1] = other_user.email
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60 end
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61 end
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62 return concat( t, ", " )
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63 end
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64
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4
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65 return chat
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66 end
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67
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68 function Chat.search(query,sort,rows)
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69 rows = rows or 1000000
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70 local chats = {}
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71 local docs = Db.search(query,1,rows,{sort=sort})
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72 for _, doc in ipairs(docs) do
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73 chats[#chats+1] = from_doc(doc)
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74 end
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75 return chats
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76 end
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77
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7
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78 function Chat.get_by_id(id)
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79 local doc = Db.get_document("id:"..id)
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80 return doc and doc.type=="chat" and from_doc(doc) or nil
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81 end
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82
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4
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83 return Chat
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