github-vet / github-vet/rangeloop-pointer-findings

bydmm/bydmm-yuanlimm-go: cron/rank.go; 14 LoC

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Description

Found a possible issue in [bydmm/bydmm-yuanlimm-go](https://www.github.com/bydmm/bydmm-yuanlimm-go) at [cron/rank.go](https://github.com/bydmm/bydmm-yuanlimm-go/blob/d8121eb1b5d0999348086d3d7f395a115c423341/cron/rank.go#L33-L46)

Below is the message reported by the analyzer for this snippet of code. Beware that the analyzer only reports the first
issue it finds, so please do not limit your consideration to the contents of the below message.

>

[Click here to see the code in its original context.](https://github.com/bydmm/bydmm-yuanlimm-go/blob/d8121eb1b5d0999348086d3d7f395a115c423341/cron/rank.go#L33-L46)

Click here to show the 14 line(s) of Go which triggered the analyzer.

```go
for _, stock := range model.Stocks() {
var order model.StockOrder
err := model.DB.
Where("status = ?", model.Padding).
Where("stock_code = ?", stock.Code).
Where("amount > 0").
Order("price DESC").
First(&order).Error
if err == nil {
model.DB.Model(&stock).Update("buy_price", order.Price)
} else {
model.DB.Model(&stock).Update("buy_price", 0)
}
}

```

Click here to show extra information the analyzer produced.

```
No path was found through the callgraph that could lead to a function which writes a pointer argument.

No path was found through the callgraph that could lead to a function which passes a pointer to third-party code.

root signature {Model 1} was not found in the callgraph; reference was passed directly to third-party code
```

Leave a reaction on this issue to contribute to the project by classifying this instance as a **Bug** :-1:, **Mitigated** :+1:, or **Desirable Behavior** :rocket:
See the descriptions of the classifications [here](https://github.com/github-vet/rangeclosure-findings#how-can-i-help) for more information.

commit ID: d8121eb1b5d0999348086d3d7f395a115c423341

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with cron/rank.go lines 33-46 at commit d8121eb1b5d0999348086d3d7f395a115c423341, focusing on the range-loop variable passed to model.DB.Model. Trace model.Stocks and the database update, then determine whether the analyzer finding is reproducible. Done means classifying the finding as Bug, Mitigated, or Desirable Behavior with a supporting result.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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