You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
81 lines
2.3 KiB
81 lines
2.3 KiB
class Company
|
|
attr_reader :id, :name, :industry, :employees
|
|
# connect to postgres
|
|
DB = PG.connect(host: "localhost", port: 5432, dbname: 'contacts')
|
|
|
|
def initialize(opts = {})
|
|
@id = opts["id"].to_i
|
|
@name = opts["name"]
|
|
@age = opts["industry"]
|
|
if opts["employees"]
|
|
@employees = opts["employees"]
|
|
end
|
|
end
|
|
|
|
def self.all
|
|
results = DB.exec("SELECT * FROM companies;")
|
|
return results.map { |result| Company.new(result) }
|
|
end
|
|
|
|
def self.find(id)
|
|
results = DB.exec(<<-SQL
|
|
SELECT
|
|
companies.*,
|
|
people.id AS person_id,
|
|
people.name AS person_name,
|
|
people.age
|
|
FROM companies
|
|
LEFT JOIN jobs
|
|
ON companies.id = jobs.company_id
|
|
LEFT JOIN people
|
|
ON jobs.person_id = people.id
|
|
WHERE companies.id=#{id};
|
|
SQL
|
|
)
|
|
employees = [];
|
|
results.each do |result|
|
|
if result["person_id"]
|
|
employees.push(Person.new({
|
|
"id" => result["person_id"],
|
|
"name" => result["person_name"],
|
|
"age" => result["age"]
|
|
}))
|
|
end
|
|
end
|
|
return Company.new({
|
|
"id" => results.first["id"],
|
|
"name" => results.first["name"],
|
|
"industry" => results.first["industry"],
|
|
"employees" => employees
|
|
})
|
|
end
|
|
|
|
def self.create(opts={})
|
|
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)
|
|
results = DB.exec("DELETE FROM companies WHERE id=#{id};")
|
|
return { deleted: true }
|
|
end
|
|
|
|
def self.update(id, opts={})
|
|
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
|