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Read values in scheduled script store in ftp
#21
Hi,

I cant get this script to work:

tagname = 'log'
logtime = os.time() - 60 * 60

query = [[
SELECT ol.*, o.name, o.datatype
FROM objectlog ol
JOIN objects o ON ol.address=o.id
JOIN objecttags t ON o.id=t.object
WHERE t.tag=? AND logtime>=?
ORDER BY id DESC
]]

buffer = { 'date;name;value' }

items = db:getall(query, tagname, logtime)
for _, item in ipairs(items) do
  id = tonumber(item.address) or 0
  logdate = os.date('%Y-%m-%d', math.floor(item.logtime))
  etype = item.eventtype

  if (etype == 'write' or etype == 'response') and item.datatype then
    value = grp.decodevalue(item.datahex, item.datatype)
    if type(value) == 'number' then
      value = tostring(value):gsub('%.', ',')
    end
  else
    value = ''
  end

  buffer[ #buffer + 1 ] = string.format('%s;%s;%s',
    logdate, item.name or '', tostring(value))
end

csv = table.concat(buffer, '\n')



I got nil.

I want to read meters convert to: buffer = { 'date;name;value' }

and send email once every sixth our.

Thanks for help.
Reply


Messages In This Thread
RE: Read values in scheduled script store in ftp - by Rauschentofft - 05.05.2021, 16:33

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