Fix the error handling in Query.pluck()

tasanobu · tasanobu · commit 403077f94f88 · 2016-07-16T11:52:17.000+09:00
diff --git a/SQLite/Typed/Query.swift b/SQLite/Typed/Query.swift
@@ -955,7 +955,10 @@ extension Connection {
     }
 
     public func pluck(query: QueryType) -> Row? {
-        return try! prepare(query.limit(1, query.clauses.limit?.offset)).generate().next()
+        guard let rows = try? prepare(query.limit(1, query.clauses.limit?.offset)) else {
+            return nil
+        }
+        return rows.generate().next()
     }
 
     /// Runs an `Insert` query.

Original file line number	Diff line number	Diff line change
`@@ -955,7 +955,10 @@ extension Connection {`
`955`	`955`	`}`
`956`	`956`
`957`	`957`	`public func pluck(query: QueryType) -> Row? {`
`958`		`- return try! prepare(query.limit(1, query.clauses.limit?.offset)).generate().next()`
	`958`	`+ guard let rows = try? prepare(query.limit(1, query.clauses.limit?.offset)) else {`
	`959`	`+ return nil`
	`960`	`+ }`
	`961`	`+ return rows.generate().next()`
`959`	`962`	`}`
`960`	`963`
`961`	`964`	/// Runs an `Insert` query.