fkg-api-proxy/source/dataMixins.d

module dataMixins;

template applyMasterTranslation(string Table, uint IdFieldIndex, Translations...)
{
    static assert(Translations.length >= 2 && Translations.length % 2 == 0);

    import std.conv : to;
    import std.uni : toLower;
    private template getMasterColumnTranslations(Translations...)
    {
        static if(Translations.length > 0)
        {
            enum getMasterColumnTranslations = "row[" ~ Translations[0].to!string ~ "] = " ~ Translations[1] ~ "[id]; "
                                                ~ getMasterColumnTranslations!(Translations[2 .. $]);
        }
        else
        {
            enum getMasterColumnTranslations = "";
        }
    }

    enum applyMasterTranslation = "
        foreach(row; getMasterResponse.master" ~ Table ~ ")
        {
            import std.conv : to;
            auto id = row[" ~ IdFieldIndex.to!string ~ "].to!uint;

            import translations." ~ Table[0].toLower.to!string ~ Table[1 .. $] ~ ";

            if(id in " ~ Translations[1] ~ ")
            {
                " ~ getMasterColumnTranslations!(Translations) ~ "
            }
        }";
}