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48 lines
1.2 KiB
Lua
48 lines
1.2 KiB
Lua
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local _M={}
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function _M.update(tablename,row,conds)
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local vals = {}
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for k,v in pairs(row) do
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if type(v) =='string' then
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table.insert(vals,string.format("%s='%s'",k,v))
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elseif type(v) =='number' then
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table.insert(vals,string.format("%s=%s",k,tostring(v)))
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else
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assert(false,'not support')
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end
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end
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local strvals = table.concat(vals,",")
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local fmt = "update `%s` set %s where %s"
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local sql = string.format(fmt,tablename,strvals,conds)
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return sql
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end
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function _M.insert(tablename,row)
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local cols = {}
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local vals = {}
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for k,v in pairs(row) do
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table.insert(cols,string.format("`%s`",k))
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if type(v) =='string' then
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table.insert(vals,string.format("'%s'",v))
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elseif type(v) =='number' then
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table.insert(vals,string.format("%s",tostring(v)))
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else
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assert(false,'not support')
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end
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end
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local strcols = table.concat(cols,",")
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local strvals = table.concat(vals,",")
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local fmt = "insert into `%s` (%s) values(%s)"
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local sql = string.format(fmt,tablename,strcols,strvals)
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return sql
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end
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return _M
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