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annotate src/move_pic.js.luan @ 2:e32e4120dc70

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author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 11 Jul 2025 21:23:39 -0600
parents 8f4df159f06b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 Http = require "luan:http/Http.luan"
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4 local Pic = require "site:/lib/Pic.luan"
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5 local User = require "site:/lib/User.luan"
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6 local Db = require "site:/lib/Db.luan"
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7 local run_in_transaction = Db.run_in_transaction or error()
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8
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9
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10 return function()
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11 local user = User.current() or error()
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12 local pic_id = Http.request.parameters.pic or error()
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13 local prev_id = Http.request.parameters.prev or error()
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14 run_in_transaction( function()
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15 local pic = Pic.get_by_id(pic_id) or error()
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16 pic.user_id == user.id or error()
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17 local prev
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18 if prev_id == "null" then
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19 prev = nil
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20 else
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21 prev = Pic.get_by_id(prev_id) or error()
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22 end
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23 pic.move_after(prev)
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24 pic.save()
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25 end )
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26 end