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add resty.mysql:connect support dsn string #1

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add resty.mysql:connect support dsn string #1

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17 changes: 11 additions & 6 deletions README.markdown
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Original file line number Diff line number Diff line change
Expand Up @@ -48,13 +48,18 @@ Synopsis
-- user = "ngx_test",
-- password = "ngx_test" }

-- local ok, err, errno, sqlstate = db:connect{
-- host = "127.0.0.1",
-- port = 3306,
-- database = "ngx_test",
-- user = "ngx_test",
-- password = "ngx_test",
-- max_packet_size = 1024 * 1024 }

local ok, err, errno, sqlstate = db:connect{
host = "127.0.0.1",
port = 3306,
database = "ngx_test",
user = "ngx_test",
password = "ngx_test",
max_packet_size = 1024 * 1024 }
dsn="host=127.0.0.1;port=3306;database=ngx_test;user=ngx_test;password=ngx_test",
max_packet_size = 1024 * 1024
}

if not ok then
ngx.say("failed to connect: ", err, ": ", errno, " ", sqlstate)
Expand Down
24 changes: 24 additions & 0 deletions lib/resty/mysql.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ local strbyte = string.byte
local strchar = string.char
local strfind = string.find
local strrep = string.rep
local strsub = string.sub
local null = ngx.null
local band = bit.band
local bxor = bit.bxor
Expand All @@ -52,6 +53,21 @@ end
converters[0x09] = tonumber -- int24
converters[0x0d] = tonumber -- year

local function _split(str, seq)
local list = {}
local pos = 1
while 1 do
local first, last = strfind(str, seq, pos)
if first then
insert(list, strsub(str, pos, first-1))
pos = last+1
else
insert(list, strsub(str, pos))
break
end
end
return list
end

local function _get_byte2(data, i)
local a, b = strbyte(data, i, i + 1)
Expand Down Expand Up @@ -458,6 +474,14 @@ function connect(self, opts)
return nil, "not initialized"
end

local dsn = opts.dsn
if dsn then
for _, value in pairs(_split(dsn, ";")) do
local _item = _split(value, "=")
opts[_item[1]] = _item[2]
end
end

local max_packet_size = opts.max_packet_size
if not max_packet_size then
max_packet_size = 1024 * 1024 -- default 1 MB
Expand Down