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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
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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
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---
## åå
ãšã©ãŒã¡ãã»ãŒãžã«ã¯æ¬¡ã®ããã«ãããŸãã
```python
TypeError: unsupported operand type(s) for *: 'str' and 'int'
```
ã€ãŸãã
```python
order["price"] * order["quantity"]
```
ãå®è¡ãããšãã«ãã©ã¡ãããæååã§ãããäžæ¹ãæŽæ°ãªã®ã§ã`*` æŒç®ãã§ããªããšããæå³ã§ãã
ããšãã°ãããŒã¿ããŒã¹ã® `price` ã `quantity` ãæ¬¡ã®ããã«æååãšããŠä¿åãããŠãããšããŸãã
```python
orders = [
{"price": "1000", "quantity": 2},
{"price": "300", "quantity": 5},
]
```
ãã®ãšãã
```python
order["price"] * order["quantity"]
```
ã¯ã
```python
"1000" * 2
```
ã®ããã«è©äŸ¡ããã`str` ãš `int` ã®æãç®ã¯ãµããŒããããŠããªãããã`TypeError` ã«ãªããŸãã
---
## ä¿®æ£æ¹æ³
æãç°¡åã§ç¢ºå®ãªä¿®æ£ã¯ã`price` ãš `quantity` ã `int` ãŸã㯠`float`âŠ
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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`
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---
## ææäºé
ãµããª
| # | éèŠåºŠ | åé¡ | å
容 |
|---|---|---|---|
| 1 | ðŽ é« | ãã° | `response.ok` ã確èªããŠããªãïŒ4xx/5xx ãæ£åžžç³»ãšããŠåŠçïŒ |
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| 4 | ð äž | å
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| 7 | ð äž | ä¿å®æ§ | ããžãã¯æåå `"deleted"` |
| 8 | ð äžâŠ
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## æŠèŠ
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---
## 1. å¯èªæ§ã®æ¹å
### æ¹åæ¡
```typescript
async function fetchAllUsers(page: number = 1): Promise<User[]> {
const allUsers: User[] = [];
let hasMore = true;
let currentPage = page;
while (hasMore) {
const response = await fetch(
`/api/users?page=${currentPage}&limit=100`
);
if (!response.ok) {
throw new Error(`Failed to fetch users page ${currentPage}`);
}
const data = await response.json();
for (const user of data.âŠ
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