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
GLM 5.3
## åå
`TypeError: unsupported operand type(s) for *: 'str' and 'int'` ã¯ã**æååãšæ°å€ãæãç®ããããšããŠå€±æ**ãããšã©ãŒã§ãããšã©ãŒã¡ãã»ãŒãžã®äžŠã³ããã`order["price"]` ãæååïŒ`'1000'` ãªã©ïŒã`order["quantity"]` ãæŽæ°ã§è¿ãããŠãããšæšæž¬ã§ããŸãã
ã€ãŸããDBããååŸããå€ã®åãæåŸ
ïŒæ°å€ïŒãšç°ãªã£ãŠããŸããå
žåçãªèŠå ã¯ïŒ
1. **`price` ã«ã©ã ã `VARCHAR` / `TEXT` ãªã©ã®æåååã§å®çŸ©ãããŠãã**ïŒæãå¯èœæ§ãé«ãïŒ
2. `DECIMAL` åã«ã©ã ãããã©ã€ããŒã®èšå®ã `db.query()` ã©ãããŒã®åŠçã«ãã£ãŠæååãšããŠåãåã£ãŠãã
3. JSON çµç±ãªã©ã§äžåºŠæåååãããããŒã¿ã䜿ã£ãŠãã
## ç¢ºèªæ¹æ³
ãŸãå®éã®åã確èªããŠãã ããïŒ
```python
print(type(orders[0]["price"]), repr(orders[0]["price"]))
print(type(orders[0]["quantity"]), repr(orders[0]["quantity"]))
# äŸ: <class 'str'> '1000' â ãããåå
```
ã¹ããŒãã確èªããŸãïŒMySQLã®äŸïŒïŒ
```sql
SELECT column_name, data_type FROM information_schema.columns
WHERE table_âŠ
å¿çæé 93.0ç§åºå 7073 ããŒã¯ã³
ã³ãŒãã¬ãã¥ãŒ
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
š | `any[]` ãåŒã³åºãåŽå
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
å¿çæé 240.2ç§åºå 17159 ããŒã¯ã³
GLM 5.3
# ã³ãŒãã¬ãã¥ãŒ
å
šäœçã«ããžãã¯ã¯æ£ããåäœããŸãããããã€ãã®æ¹åç¹ããããŸããã«ããŽãªå¥ã«æŽçããŸãã
## 1. åå®å
šæ§
**課é¡ïŒ`any` ã®äœ¿çš**
`Promise<any[]>` ã `allUsers: any[]` ã¯TypeScriptã®åãã§ãã¯ãç¡å¹åããŠãããã¿ã€ããååšããªãããããã£ãžã®ã¢ã¯ã»ã¹ãå®è¡æãŸã§æ€åºã§ããŸããã
```typescript
// APIã¬ã¹ãã³ã¹ãšè¿åŽå€ã®åãå®çŸ©ãã¹ã
interface ApiUser {
id: number;
first_name: string;
last_name: string;
email: string;
status: 'active' | 'deleted';
}
interface User {
id: number;
name: string;
email: string;
}
```
## 2. ãšã©ãŒåŠç
**課é¡ïŒ`response.ok` ã®ãã§ãã¯ããªã**
HTTP 404 ã 500 ã§ã `fetch` ã¯äŸå€ãæããã`response.json()` ã倱æãããæå³ããªãããŒã¿ãè¿ããŸãããŸãããããã¯ãŒã¯ãšã©ãŒæã®æåãèæ
®ãããŠããŸããã
```typescript
const response = await fetch(url);
if (!response.ok) {
throw new Error(`ãŠãŒã¶ãŒååŸã«å€±æããŸãã (status: ${response.status})âŠ
å¿çæé 42.3ç§åºå 3589 ããŒã¯ã³
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Fugu Ultra v2
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---
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GLM 5.3
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