ãã®ãšã©ãŒããããã°ããŠ
以äžã®ãšã©ãŒãPythonã¢ããªã±ãŒã·ã§ã³ã§çºçããŠããŸããåå ãç¹å®ããŠä¿®æ£ããŠãã ããã
Traceback (most recent call last):
File "app.py", line 23, in get_user_orders
total = sum(order["price"] * order["quantity"] for order in orders)
TypeError: unsupportâŠ
Fugu Ultra v2
## åå
`order["price"]` ã **æ°å€ã§ã¯ãªãæåå (`str`)** ã§è¿ã£ãŠããŠããããšãåå ã§ãã
Python ã§ã¯ `"1200" * 3` ã¯æãç®ã§ã¯ãªããæååã3åç¹°ãè¿ãããšããæå³ã«ãªããŸããä»å㯠`quantity` ã `int` ãªã®ã§äžèŠæç«ãããã§ããããšã©ãŒã¡ãã»ãŒãžã瀺ãéã `str * int` ã®çµã¿åããã§åãåã¿åãã `TypeError` ã«ãªã£ãŠããŸãã
æååã«ãªãå
žåçãªçç±ã¯æ¬¡ã®éãã§ãã
1. **ã«ã©ã åãæåå** â `price` ã `VARCHAR`/`TEXT` ã§å®çŸ©ãããŠããïŒ`"1,200"` ã `"$12.00"` ã®ãããªå€ãæ··ãã£ãŠããã±ãŒã¹ãïŒ
2. **DBãã©ã€ãã®å倿** â MySQL ã® `DECIMAL` ãæååã§è¿ãèšå®ïŒ`raw=True` ãªã©ïŒãSQLite ã«æååã®ãŸãŸ INSERT ãããŠãã
3. **ã¢ããªå±€ã§æååå** â ãã©ãŒã /JSON ã®å
¥åã倿ããã«ãã®ãŸãŸ INSERT ããŠãã
ãŸãå®éã®åã確èªãããšåãåããã§ããŸãã
```python
rows = db.query("SELECT price, quantity FROM orders WHERE user_id = %s", user_id)
for r in rows[:5]:
print(repr(r["price"]), type(r["price"]), repr(r["quantity"]), type(r["quantiâŠ
å¿çæé 97.1ç§åºå 6218 ããŒã¯ã³
GPT-5.6 Luna
åå ã¯ã`order["price"]` ãæååïŒ`str`ïŒãšããŠååŸãããŠããã®ã«ã`order["quantity"]` ã¯æŽæ°ïŒ`int`ïŒã§ããããã§ãã
```python
"1000" * 2
```
ã¯æ°å€ã®ä¹ç®ã§ã¯ãªããæååã®ç¹°ãè¿ããšããŠæ±ãããããã`str` ãš `int` ã®ä¹ç®ã§ãšã©ãŒã«ãªããŸãã
## ä¿®æ£äŸïŒPythonåŽã§å倿ãã
éé¡ãæ±ãããã`float` ã§ã¯ãªã `Decimal` ã䜿ãã®ãå®å
šã§ãã
```python
from decimal import Decimal
def get_user_orders(user_id):
orders = db.query(
"SELECT price, quantity FROM orders WHERE user_id = %s",
user_id
)
total = sum(
Decimal(str(order["price"])) * int(order["quantity"])
for order in orders
)
return {
"user_id": user_id,
"total": total,
"orders": orders,
}
```
`price` ã `"12.50"` ã®ãããªæååã§ãã`Decimal` ã«å€æããŠæ£ç¢ºã«èšç®ã§ããŸãã
## SQLåŽã§æ°å€åã«å€âŠ
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以äžã®TypeScript颿°ãã¬ãã¥ãŒããŠãå¯èªæ§ã»ããã©ãŒãã³ã¹ã»ãã¹ããã©ã¯ãã£ã¹ã®èгç¹ããæ¹åç¹ãææ¡ããŠãã ããã
async function fetchAllUsers(page: number = 1): Promise<any[]> {
let allUsers: any[] = [];
let hasMore = true;
let currentPage = page;
while (hasMoâŠ
Fugu Ultra v2
# ã³ãŒãã¬ãã¥ãŒ: `fetchAllUsers`
ããžãã¯ã®æå³ã¯æç¢ºã§ã`async/await` ã«ããçŽ çŽãªå®è£
ã«ãªã£ãŠããŸããç¹ã« **çµäºå€å®ã«ãã£ã«ã¿åŸã§ã¯ãªã API ãè¿ããçã® `data.users.length` ã䜿ã£ãŠããç¹ã¯æ£ãã**ïŒãã£ã«ã¿åŸã®ä»¶æ°ã§å€å®ãããšãå逿žã¿ãŠãŒã¶ãŒãå€ãããŒãžã§æ©æçµäºãããã°ã«ãªããŸãïŒããŸã `push` ãã«ãŒãã§åããŠããããã`push(...array)` ã«ããã¹ã¿ãã¯ãªãŒããŒãããŒãåé¿ã§ããŠããŸãã
äžæ¹ã§ã**åå®å
šæ§ã»HTTP ãšã©ãŒåŠçã»ããŒãžããŒã·ã§ã³ã®å
ç¢æ§**ã«éèŠãªæ¹åäœå°ããããŸãã以äžãéèŠåºŠé ã«ãŸãšããŸãã
---
## ææäºé
ãµããª
| # | éèŠåºŠ | åé¡ | å
容 |
|---|---|---|---|
| 1 | ðŽ é« | ãã° | `response.ok` ã確èªããŠããªãïŒ4xx/5xx ãæ£åžžç³»ãšããŠåŠçïŒ |
| 2 | ðŽ é« | ãã° | ç¡éã«ãŒãã®ãªã¹ã¯ïŒçµäºæ¡ä»¶ã API ã®æåã«å
šäŸåïŒ |
| 3 | ðŽ é« | åå®å
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šäœã«äŒæ |
| 4 | ð äž | å
ç¢æ§ | ã¬ã¹ãã³ã¹åœ¢ç¶ã®ã©ã³ã¿ã€ã æ€èšŒããªã |
| 5 | ð äž | å
ç¢æ§ | ãã£ã³ã»ã«ïŒ`AbortSignal`ïŒéå¯Ÿå¿ |
| 6 | ð äž | ä¿å®æ§ | ããžãã¯ãã³ã㌠`100` ã®éè€å®çŸ© |
| 7 | ð äž | ä¿å®æ§ | ããžãã¯æåå `"deleted"` |
| 8 | ð äžâŠ
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GPT-5.6 Luna
以äžã®ç¹ãæ¹åã§ããŸãã
## äž»ãªæ¹åç¹
### 1. `any` ãé¿ãã
`any` ã ãšããããã£åã®èª€ããã¬ã¹ãã³ã¹åœ¢åŒã®å€æŽãæ€ç¥ã§ããŸãããAPIã¬ã¹ãã³ã¹ãšæ»ãå€ã«åãå®çŸ©ãããšå¯èªæ§ãšå®å
šæ§ãåäžããŸãã
### 2. HTTPãšã©ãŒã確èªãã
`fetch` ã¯ã404ã500ã§ãäŸå€ãæããã« `Response` ãè¿ããŸãã`response.ok` ã確èªããå¿
èŠããããŸãã
### 3. ããžãã¯ãã³ããŒã宿°åãã
`100` ã¯ããŒãžãµã€ãºã衚ããŠããããã宿°ã«ãããšæå³ãæç¢ºã«ãªããŸãã
### 4. ããŒãžã³ã°æ¡ä»¶ãAPIã®ã¡ã¿ããŒã¿ã«äŸåããã
`data.users.length < 100` ãšããå€å®ã¯ãAPI仿§ã«äŸåããŠããŸããå¯èœã§ããã° `hasMore` ã `nextPage` ãªã©ã®æ
å ±ãAPIããåãåãæ¹ãå
ç¢ã§ãã
### 5. `for` ãšã€ã³ããã¯ã¹åç
§ãç°¡ç¥åãã
`for...of`ã`filter`ã`map` ãªã©ã䜿ããšãåŠçå
容ãèªã¿ããããªããŸãã
## æ¹åäŸ
```ts
const PAGE_SIZE = 100;
interface ApiUser {
id: string;
first_name: string;
last_name: string;
email: string;
status: string;
}
interface UsersPageResponse {
users: ApiUser[];
// APIãè¿âŠ
å¿çæé 13.6ç§åºå 1677 ããŒã¯ã³
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---
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