Converted to heck which is probably more robust.

Author: NicholasLYang

diesel_cli/Cargo.toml

@@ -20,6 +20,7 @@ chrono = "0.4"
 clap = "2.27"
 diesel = { version = "~1.4.0", default-features = false }
 dotenv = ">=0.8, <0.11"
+heck = "0.3.1"
 migrations_internals = "~1.4.0"
 serde = { version = "1.0.0", features = ["derive"] }
 tempfile = "3.0.0"

diesel_cli/src/infer_schema_internals/.#pg.rs

@@ -0,0 +1 @@
+nicholas@172-18-33-126.dynapool.nyu.edu.356

diesel_cli/src/infer_schema_internals/mod.rs

@@ -2,7 +2,6 @@ mod data_structures;
 mod foreign_keys;
 mod inference;
 mod table_data;
-mod utils;
 
 #[cfg(feature = "uses_information_schema")]
 mod information_schema;

diesel_cli/src/infer_schema_internals/mysql.rs

@@ -1,11 +1,11 @@
 use diesel::mysql::Mysql;
 use diesel::*;
+use heck::CamelCase;
 use std::error::Error;
 
 use super::data_structures::*;
 use super::information_schema::UsesInformationSchema;
 use super::table_data::TableName;
-use super::utils::to_camel_case;
 
 mod information_schema {
     table! {
@@ -85,7 +85,7 @@ pub fn determine_column_type(attr: &ColumnInformation) -> Result<ColumnType, Box
     let unsigned = determine_unsigned(&attr.type_name);
 
     Ok(ColumnType {
-        rust_name: to_camel_case(tpe.trim()),
+        rust_name: tpe.trim().to_camel_case(),
         is_array: false,
         is_nullable: attr.nullable,
         is_unsigned: unsigned,

diesel_cli/src/infer_schema_internals/pg.rs

@@ -1,5 +1,5 @@
 use super::data_structures::*;
-use super::utils::to_camel_case;
+use heck::CamelCase;
 use std::error::Error;
 use std::io::{stderr, Write};
 
@@ -28,7 +28,7 @@ pub fn determine_column_type(attr: &ColumnInformation) -> Result<ColumnType, Box
     }
 
     Ok(ColumnType {
-        rust_name: to_camel_case(tpe),
+        rust_name: tpe.to_camel_case(),
         is_array,
         is_nullable: attr.nullable,
         is_unsigned: false,

diesel_cli/src/infer_schema_internals/utils.rs

@@ -20,6 +20,7 @@ extern crate clap;
 #[macro_use]
 extern crate diesel;
 extern crate dotenv;
+extern crate heck;
 extern crate migrations_internals;
 #[macro_use]
 extern crate serde;