comparison src/save_pic_title.js.luan @ 0:8f4df159f06b

start public repo
author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 11 Jul 2025 20:57:49 -0600
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-1:000000000000 0:8f4df159f06b
1 local Luan = require "luan:Luan.luan"
2 local error = Luan.error
3 local pairs = Luan.pairs or error()
4 local String = require "luan:String.luan"
5 local trim = String.trim or error()
6 local regex = String.regex or error()
7 local Parsers = require "luan:Parsers.luan"
8 local json_string = Parsers.json_string or error()
9 local Io = require "luan:Io.luan"
10 local Http = require "luan:http/Http.luan"
11 local Shared = require "site:/lib/Shared.luan"
12 local js_error = Shared.js_error or error()
13 local Pic = require "site:/lib/Pic.luan"
14 local User = require "site:/lib/User.luan"
15 local Db = require "site:/lib/Db.luan"
16 local run_in_transaction = Db.run_in_transaction or error()
17 local Logging = require "luan:logging/Logging.luan"
18 local logger = Logging.logger "save_pic_title.js"
19
20
21 local hashtags_regex = regex[[^(#?\w+\s*)*$]]
22 local hashtag_regex = regex[[\w+]]
23
24 return function()
25 Io.stdout = Http.response.text_writer()
26 local user = User.current() or error()
27 local pic_id = Http.request.parameters.pic or error()
28 local title = Http.request.parameters.title or error()
29 title = trim(title)
30 local hashtags = Http.request.parameters.hashtags or error()
31 hashtags = trim(hashtags)
32 local is_hidden = Http.request.parameters.visible == nil
33 if not hashtags_regex.matches(hashtags) then
34 js_error("hashtags",[[Hashtags may only contain letters, numbers, underscores ("_"), and spaces to separate them]])
35 return
36 end
37 local set = {}
38 for hashtag in hashtag_regex.gmatch(hashtags) do
39 set[hashtag] = true
40 end
41 hashtags = {}
42 for hashtag in pairs(set) do
43 hashtags[#hashtags+1] = hashtag
44 end
45 local pic
46 run_in_transaction( function()
47 pic = Pic.get_by_id(pic_id)
48 pic.user_id == user.id or error()
49 pic.title = title
50 pic.is_hidden = is_hidden
51 pic.hashtags = hashtags
52 pic.save()
53 end )
54 js_error( "success", "Saved" )
55 %>
56 document.querySelector('div[pic] img').title = <%=json_string(title)%>;
57 document.querySelector('div[hashtags]').innerHTML = <%=json_string(pic.hashtags_html("pics.html"))%>;
58 <%
59 end