create contribution model
contribution is valid model test
contribution is not valid without a name
contribution is not valid without an amount
contribution is not valid without a message
describe tests for contributions controller
remove pending test
association between user and contributions
add user_id column to contributions
create contributions show action and show view
add erb to file extension
assign requested contribution to @contribution
refactor get#show tests
implement new action for contributions
test for rendering new template
contribution post create with valid attributes
test for redirect to user path after post create
test contributions post create with invalid attributes
contributions post create with invalid attributes re renders new template test