Exception throw on undefined object key makes it difficult to track down issue #740
Description
Accidentally did something like the following:
validate: {
payload: {
data: mySchema.data
}
},
Where mySchema.data is undefined. This threw the following:
[Error: Invalid schema content: ]
Error: Invalid schema content:
at Object.exports.assert (mycode/node_modules/hapi/node_modules/hoek/lib/index.js:731:11)
at Object.exports.schema (mycode/node_modules/hapi/node_modules/joi/lib/cast.js:66:10)
at internals.Object.keys (mycode/node_modules/hapi/node_modules/joi/lib/object.js:282:25)
at Object.exports.schema (mycode/node_modules/hapi/node_modules/joi/lib/cast.js:47:33)
at root.compile (mycode/node_modules/hapi/node_modules/joi/lib/index.js:113:21)
at Object.internals.compileRule (mycode/node_modules/hapi/lib/route.js:256:88)
at mycode/node_modules/hapi/lib/route.js:98:38
at Array.forEach (native)
at new module.exports.internals.Route (mycode/node_modules/hapi/lib/route.js:96:47)
at internals.Connection._addRoute (mycode/node_modules/hapi/lib/connection.js:361:17)
Which does not provide much that's actionable. Ideally there would be some sort of reference to the data field and potentially the fact that this is the payload structure (although that would likely need to be in hapi vs. joi, hapi hapi joi joi).