Scaffold out basic transactions model and UI (#478)

* Transaction scaffold

* Rough in transaction views

* Fix sort order

* Fix mass assignment issue

* Fix test

* Simplify CI workflow

* Don't seed db before test

app/controllers/transactions_controller.rb

@@ -0,0 +1,64 @@
+class TransactionsController < ApplicationController
+  before_action :authenticate_user!
+  before_action :set_transaction, only: %i[ show edit update destroy ]
+
+  def index
+    @transactions = Current.family.transactions
+  end
+
+  def show
+  end
+
+  def new
+    @transaction = Transaction.new
+  end
+
+  def edit
+  end
+
+  def create
+    @transaction = Transaction.new(transaction_params)
+    account = Current.family.accounts.find(params[:transaction][:account_id])
+
+    raise ActiveRecord::RecordNotFound, "Account not found or not accessible" if account.nil?
+
+    @transaction.account = account
+
+    respond_to do |format|
+      if @transaction.save
+        format.html { redirect_to transaction_url(@transaction), notice: "Transaction was successfully created." }
+      else
+        format.html { render :new, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  def update
+    respond_to do |format|
+      if @transaction.update(transaction_params)
+        format.html { redirect_to transaction_url(@transaction), notice: "Transaction was successfully updated." }
+      else
+        format.html { render :edit, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  def destroy
+    @transaction.destroy!
+
+    respond_to do |format|
+      format.html { redirect_to transactions_url, notice: "Transaction was successfully destroyed." }
+    end
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_transaction
+      @transaction = Transaction.find(params[:id])
+    end
+
+    # Only allow a list of trusted parameters through.
+    def transaction_params
+      params.require(:transaction).permit(:name, :date, :amount, :currency)
+    end
+end