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unfilter.lua
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unfilter.lua
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--[[
mattata v2.0 - Unfilter Plugin
]]
local plugin = {}
plugin.name = 'unfilter'
plugin.category = 'admin'
plugin.description = 'Remove a content filter from the group'
plugin.commands = { 'unfilter', 'delfilter' }
plugin.help = '/unfilter <pattern> - Removes a filter. Alias: /delfilter'
plugin.group_only = true
plugin.admin_only = true
function plugin.on_message(api, message, ctx)
local tools = require('telegram-bot-lua.tools')
if not message.args then
-- List existing filters
local filters = ctx.db.execute(
'SELECT pattern, action FROM filters WHERE chat_id = $1 ORDER BY created_at',
{ message.chat.id }
)
if not filters or #filters == 0 then
return api.send_message(message.chat.id, 'There are no filters set for this group.')
end
local output = '<b>Active filters:</b>\n\n'
for i, f in ipairs(filters) do
output = output .. string.format('%d. <code>%s</code> [%s]\n', i, tools.escape_html(f.pattern), f.action)
end
output = output .. '\nUse /unfilter <pattern> to remove a filter.'
return api.send_message(message.chat.id, output, 'html')
end
local pattern = message.args:match('^%s*(.-)%s*$')
local result = ctx.db.execute(
'DELETE FROM filters WHERE chat_id = $1 AND pattern = $2',
{ message.chat.id, pattern }
)
-- pgmoon returns the number of affected rows in the result
if result and result.affected_rows and tonumber(result.affected_rows) > 0 then
api.send_message(message.chat.id, string.format(
'Filter <code>%s</code> has been removed.',
tools.escape_html(pattern)
), 'html')
else
-- Try by index number
local index = tonumber(pattern)
if index then
local filters = ctx.db.execute(
'SELECT id, pattern FROM filters WHERE chat_id = $1 ORDER BY created_at',
{ message.chat.id }
)
if filters and filters[index] then
ctx.db.execute('DELETE FROM filters WHERE id = $1', { filters[index].id })
return api.send_message(message.chat.id, string.format(
'Filter <code>%s</code> has been removed.',
tools.escape_html(filters[index].pattern)
), 'html')
end
end
api.send_message(message.chat.id, 'That filter doesn\'t exist. Use /unfilter without arguments to see all filters.')
end
end
return plugin

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