Gorm: `gorm:"nullable"` ํ•„๋“œ ์†์„ฑ ํ•„์š”

์— ๋งŒ๋“  2016๋…„ 06์›” 05์ผ  ยท  3์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: go-gorm/gorm

์ด๋ด.
๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค์—์„œ NULL ๊ฐ’์œผ๋กœ ์ž‘์—…ํ•˜๋Š” ๋™์•ˆ ์•ฝ๊ฐ„์˜ ๋ถˆํŽธํ•จ์ด ์žˆ์Šต๋‹ˆ๋‹ค.
NullString/NullInt64๋ฅผ json์œผ๋กœ ์ง์ ‘ ๋งˆ์ƒฌ๋งํ•˜๋Š” ๊ฒƒ์€ ๋ฏธ์นœ ์ง“์ด๊ธฐ ๋•Œ๋ฌธ์— sql.NullString ๋˜๋Š” sql.NullInt64๋ฅผ ์‚ฌ์šฉํ•˜๋ ค๋ฉด struct-to-store์™€ struct-to-send(json) ์‚ฌ์ด์— ์ถ”๊ฐ€ ๋งคํ•‘ ๋ ˆ์ด์–ด๊ฐ€ ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.

๋‚ด๊ฐ€ ํ•„์š”ํ•œ ๊ฒƒ์€ ์‹คํ–‰ ์ „์— SQL ๋ฌธ์ž์—ด์—์„œ 0๊ณผ ""๋ฅผ NULL๋กœ ๋ณ€ํ™˜ํ•˜๋Š” gorm:"nullable" ๋ฟ์ž…๋‹ˆ๋‹ค.

picture corvinusy
👍15

๊ฐ€์žฅ ์œ ์šฉํ•œ ๋Œ“๊ธ€

๋„ ์ž…๋ ฅ ๊ฐ€๋Šฅ ํ˜•์‹์˜ ํฌ์ธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์‹ญ์‹œ์˜ค. *string ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์ฒ˜๋Ÿผ

picture jinzhu ์— 2017๋…„ 04์›” 18์ผ
👍8

๋ชจ๋“  3 ๋Œ“๊ธ€

๋„ ์ž…๋ ฅ ๊ฐ€๋Šฅ ํ˜•์‹์˜ ํฌ์ธํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์‹ญ์‹œ์˜ค. *string ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์ฒ˜๋Ÿผ

jinzhu picture jinzhu ์— 2017๋…„ 04์›” 18์ผ
👍8

๋ฌธ์„œ์—์„œ sql.Null*์„ ์‚ฌ์šฉํ•˜๋Š” ์ด์œ ๋Š” ๋ฌด์—‡์ž…๋‹ˆ๊นŒ? ๋ˆ„๊ตฌ๋“ ์ง€ ํฌ์ธํ„ฐ ๋Œ€ sql.Null ์‚ฌ์šฉ์˜ ์žฅ๋‹จ์ ์— ๋Œ€ํ•œ ๋งํฌ๊ฐ€ ์žˆ์Šต๋‹ˆ๊นŒ?

hackervera picture hackervera ์— 2018๋…„ 04์›” 01์ผ
👍1

@tjgillies https://www.reddit.com/r/golang/comments/5vil0v/use_sqlnullsring_or_string_to_handle_database/

anagha-todalbagi picture anagha-todalbagi ์— 2018๋…„ 06์›” 20์ผ
์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ๋‚˜์š”?
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