for create/update return object created/updated

app/models/company.rb

@@ -19,8 +19,14 @@ class Company
     end
 
     def self.create(opts={})
-        results = DB.exec("INSERT INTO companies (name, industry) VALUES ( '#{opts["name"]}', '#{opts["industry"]}' );")
-        return { created:true }
+        results = DB.exec(
+            <<-SQL
+                INSERT INTO companies (name, industry)
+                VALUES ( '#{opts["name"]}', '#{opts["industry"]}' )
+                RETURNING id, name, industry;
+            SQL
+        )
+        return Company.new(results.first)
     end
 
     def self.delete(id)
@@ -29,7 +35,14 @@ class Company
     end
 
     def self.update(id, opts={})
-        results = DB.exec("UPDATE companies SET name='#{opts["name"]}', industry='#{opts["industry"]}' WHERE id=#{id} ;")
-        return { updated: true }
+        results = DB.exec(
+            <<-SQL
+                UPDATE companies
+                SET name='#{opts["name"]}', industry='#{opts["industry"]}'
+                WHERE id=#{id}
+                RETURNING id, name, industry;
+            SQL
+        )
+        return Company.new(results.first)
     end
 end

app/models/location.rb

@@ -20,8 +20,14 @@ class Location
     end
 
     def self.create(opts={})
-        results = DB.exec("INSERT INTO locations (street, city, state) VALUES ( '#{opts["street"]}', '#{opts["city"]}', '#{opts["state"]}' );")
-        return { created:true }
+        results = DB.exec(
+            <<-SQL
+                INSERT INTO locations (street, city, state)
+                VALUES ( '#{opts["street"]}', '#{opts["city"]}', '#{opts["state"]}' )
+                RETURNING id, street, city, state;
+            SQL
+        )
+        return Location.new(results.first)
     end
 
     def self.delete(id)
@@ -30,7 +36,14 @@ class Location
     end
 
     def self.update(id, opts={})
-        results = DB.exec("UPDATE locations SET street='#{opts["street"]}', city='#{opts["city"]}', state='#{opts["state"]}' WHERE id=#{id} ;")
-        return { updated: true }
+        results = DB.exec(
+            <<-SQL
+                UPDATE locations
+                SET street='#{opts["street"]}', city='#{opts["city"]}', state='#{opts["state"]}'
+                WHERE id=#{id}
+                RETURNING id, street, city, state;
+            SQL
+        )
+        return Location.new(results.first)
     end
 end

app/models/person.rb

@@ -22,8 +22,14 @@ class Person
     end
 
     def self.create(opts={})
-        results = DB.exec("INSERT INTO people (name, age, home_id) VALUES ( '#{opts["name"]}', #{opts["age"]}, #{opts["home_id"]} );")
-        return { created:true }
+        results = DB.exec(
+            <<-SQL
+                INSERT INTO people (name, age)
+                VALUES ( '#{opts["name"]}', #{opts["age"]} )
+                RETURNING id, name, age;
+            SQL
+        )
+        return Person.new(results.first)
     end
 
     def self.delete(id)
@@ -32,7 +38,14 @@ class Person
     end
 
     def self.update(id, opts={})
-        results = DB.exec("UPDATE people SET name='#{opts["name"]}', age=#{opts["age"]} WHERE id=#{id} ;")
-        return { updated: true }
+        results = DB.exec(
+            <<-SQL
+                UPDATE people
+                SET name='#{opts["name"]}', age=#{opts["age"]}
+                WHERE id=#{id}
+                RETURNING id, name, age;
+            SQL
+        )
+        return Person.new(results.first)
     end
 end