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- 增加 达梦 表达式解析 yyyyMMdd 常用 c# 日期格式化；

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28810
2020-05-24 08:23:04 +08:00
parent 2a42731134
commit 368da0b04e
13 changed files with 411 additions and 205 deletions
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26
Providers/FreeSql.Provider.MySql/MySqlExpression.cs
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@ -430,19 +430,25 @@ namespace FreeSql.MySql
}
return m.Groups[0].Value;
});
var isMatched = false;
args1 = Regex.Replace(args1, "(m|s|t)", m =>
var argsFinds = new[] { "%Y", "%y", "%_a1", "%c", "%d", "%e", "%H", "%k", "%h", "%l", "%i", "%_a2", "%p" };
var argsSpts = Regex.Split(args1, "(m|s|t)");
for (var a = 0; a < argsSpts.Length; a++)
{
isMatched = true;
switch (m.Groups[1].Value)
switch (argsSpts[a])
{
case "m": return $"'), case when substr(date_format({left},'%i'),1,1) = '0' then substr(date_format({left},'%i'),2,1) else date_format({left},'%i') end, date_format({left},'";
case "s": return $"'), case when substr(date_format({left},'%s'),1,1) = '0' then substr(date_format({left},'%s'),2,1) else date_format({left},'%s') end, date_format({left},'";
case "t": return $"'), trim(trailing 'M' from date_format({left},'%p')), date_format({left},'";
case "m": argsSpts[a] = $"case when substr(date_format({left},'%i'),1,1) = '0' then substr(date_format({left},'%i'),2,1) else date_format({left},'%i') end"; break;
case "s": argsSpts[a] = $"case when substr(date_format({left},'%s'),1,1) = '0' then substr(date_format({left},'%s'),2,1) else date_format({left},'%s') end"; break;
case "t": argsSpts[a] = $"trim(trailing 'M' from date_format({left},'%p'))"; break;
default:
var argsSptsA = argsSpts[a];
if (argsSptsA.StartsWith("'")) argsSptsA = argsSptsA.Substring(1);
if (argsSptsA.EndsWith("'")) argsSptsA = argsSptsA.Remove(argsSptsA.Length - 1);
argsSpts[a] = argsFinds.Any(m => argsSptsA.Contains(m)) ? $"date_format({left},'{argsSptsA}')" : $"'{argsSptsA}'";
break;
}
return m.Groups[0].Value;
}).Replace("%_a1", "%m").Replace("%_a2", "%s");
return isMatched == false ? $"date_format({left},{args1})" : $"concat(date_format({left},{args1}))".Replace($"date_format({left},'')", "''");
}
if (argsSpts.Length > 0) args1 = $"concat({string.Join(", ", argsSpts.Where(a => a != "''"))})";
return args1.Replace("%_a1", "%m").Replace("%_a2", "%s");
}
}
return null;