Swift prefers camelCase

Pulling snake_case over for an interface isn't necessary.

Signed-off-by: Stephen Celis <stephen@stephencelis.com>

Author: stephencelis

Documentation/Index.md

@@ -601,7 +601,7 @@ Occasionally, we need to join a table to itself, in which case we must alias the
 ``` swift
 let managers = users.alias("managers")
 
-let query = users.join(managers, on: managers[id] == users[manager_id])
+let query = users.join(managers, on: managers[id] == users[managerId])
 // SELECT * FROM "users"
 // INNER JOIN ("users") AS "managers" ON ("managers"."id" = "users"."manager_id")
 ```
@@ -859,7 +859,7 @@ Using the `transaction` and `savepoint` functions, we can run a series of statem
 ``` swift
 db.transaction()
     && users.insert(email <- "betty@icloud.com")
-    && users.insert(email <- "cathy@icloud.com", manager_id <- db.lastInsertRowid)
+    && users.insert(email <- "cathy@icloud.com", managerId <- db.lastInsertRowid)
     && db.commit() || db.rollback()
 ```
 
@@ -870,7 +870,7 @@ For more complex transactions and savepoints, block helpers exist. Using a block
 ``` swift
 db.transaction { txn in
     if let rowid = users.insert(email <- "betty@icloud.com").rowid {
-        if users.insert(email <- "cathy@icloud.com", manager_id <- db.lastInsertRowid).rowid != nil {
+        if users.insert(email <- "cathy@icloud.com", managerId <- db.lastInsertRowid).rowid != nil {
             return .Commit
         }
     }

SQLite.playground/Contents.swift

@@ -111,7 +111,7 @@ let id = Expression<Int64>("id")
 let email = Expression<String>("email")
 let age = Expression<Int?>("age")
 let admin = Expression<Bool>("admin")
-let manager_id = Expression<Int64?>("manager_id")
+let managerId = Expression<Int64?>("manager_id")
 /*:
 The query-building interface is provided via the `Query` struct. We can access this interface by subscripting our database connection with a table name.
 */
@@ -129,7 +129,7 @@ The `insert` function can return a `rowid` (which will be `nil` in the case of f
 */
 db.transaction()
     && users.insert(email <- "julie@acme.com")
-    && users.insert(email <- "kelly@acme.com", manager_id <- db.lastInsertRowid)
+    && users.insert(email <- "kelly@acme.com", managerId <- db.lastInsertRowid)
     && db.commit()
     || db.rollback()
 /*: