From f6a52f0f6a41dcfd3c91f23863c2d243ca0cf47c Mon Sep 17 00:00:00 2001
From: "Sandeep.C.R" <sandeepcr2@gmail.com>
Date: Mon, 7 Nov 2016 06:35:37 +0000
Subject: [PATCH] Add housekeeping fields to Tenant

---
 SpockOpaleye/src/DataTypes.hs     | 11 ++++++++---
 SpockOpaleye/src/JsonInstances.hs |  2 +-
 SpockOpaleye/src/OpaleyeDef.hs    | 20 ++++++++++++++++++++
 SpockOpaleye/src/TenantApi.hs     |  2 +-
 4 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/SpockOpaleye/src/DataTypes.hs b/SpockOpaleye/src/DataTypes.hs
index ae47f24..f65be3d 100644
--- a/SpockOpaleye/src/DataTypes.hs
+++ b/SpockOpaleye/src/DataTypes.hs
@@ -1,4 +1,6 @@
 {-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE TypeSynonymInstances #-}
+{-# LANGUAGE FlexibleInstances #-}
 
 module DataTypes where
 
@@ -6,6 +8,7 @@ import           CryptoDef
 import           Data.List.NonEmpty
 import           Data.Text
 import           GHC.Generics
+import           Data.Time(UTCTime)
 
 data ValidationResult = Valid | Invalid
   deriving (Eq, Show)
@@ -16,8 +19,10 @@ newtype TenantId = TenantId Int
 data TenantStatus = TenantStatusActive | TenantStatusInActive | TenantStatusNew
   deriving (Show, Generic)
 
-data TenantPoly key name fname lname email phone status owner_id b_domain = Tenant
+data TenantPoly key created_at updated_at name fname lname email phone status owner_id b_domain = Tenant
   { tenant_id               :: key
+  , tenant_createdat        :: created_at
+  , tenant_updatedat        :: updated_at
   , tenant_name             :: name
   , tenant_firstname        :: fname
   , tenant_lastname         :: lname
@@ -28,9 +33,9 @@ data TenantPoly key name fname lname email phone status owner_id b_domain = Tena
   , tenant_backofficedomain :: b_domain
   } deriving (Show, Generic)
 
-type Tenant = TenantPoly TenantId Text Text Text Text Text TenantStatus (Maybe UserId) Text
+type Tenant = TenantPoly TenantId  UTCTime UTCTime Text Text Text Text Text TenantStatus (Maybe UserId) Text
 
-type TenantIncoming = TenantPoly () Text Text Text Text Text () (Maybe UserId) Text
+type TenantIncoming = TenantPoly () () () Text Text Text Text Text () (Maybe UserId) Text
 
 data UserStatus = UserStatusActive | UserStatusInActive | UserStatusBlocked
   deriving (Show)
diff --git a/SpockOpaleye/src/JsonInstances.hs b/SpockOpaleye/src/JsonInstances.hs
index bea6c5a..ff10ac6 100644
--- a/SpockOpaleye/src/JsonInstances.hs
+++ b/SpockOpaleye/src/JsonInstances.hs
@@ -29,7 +29,7 @@ instance FromJSON TenantStatus where
 
 instance FromJSON TenantIncoming where
   parseJSON (Object v) =
-    (Tenant ()) <$> v .: "name" <*> v .: "firstname" <*> v .: "lastname" <*>
+    (Tenant () () ()) <$> v .: "name" <*> v .: "firstname" <*> v .: "lastname" <*>
     v .: "email" <*>
     v .: "phone" <*>
     (pure ()) <*>
diff --git a/SpockOpaleye/src/OpaleyeDef.hs b/SpockOpaleye/src/OpaleyeDef.hs
index 714dc6d..7198509 100644
--- a/SpockOpaleye/src/OpaleyeDef.hs
+++ b/SpockOpaleye/src/OpaleyeDef.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE FlexibleInstances     #-}
+{-# LANGUAGE FlexibleContexts      #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE OverloadedStrings     #-}
 {-# LANGUAGE TemplateHaskell       #-}
@@ -11,8 +12,10 @@ import           Data.Profunctor.Product
 import qualified Data.Profunctor.Product.Default      as D
 import           Data.Profunctor.Product.TH           (makeAdaptorAndInstance)
 import           Data.Text
+import           Data.Time(UTCTime)
 import           Data.Text.Encoding
 import           Database.PostgreSQL.Simple.FromField
+import           Database.PostgreSQL.Simple           (Connection)
 import           Opaleye
 
 import           Control.Lens
@@ -20,6 +23,8 @@ import           DataTypes
 
 type TenantTableW = TenantPoly
   (Maybe (Column PGInt4))
+  (Maybe (Column PGTimestamptz)) -- createdAt
+  (Maybe (Column PGTimestamptz)) -- updatedAt
   (Column PGText)
   (Column PGText)
   (Column PGText)
@@ -31,6 +36,8 @@ type TenantTableW = TenantPoly
 
 type TenantTableR = TenantPoly
   (Column PGInt4)
+  (Column PGTimestamptz) -- createdAt
+  (Column PGTimestamptz) -- updatedAt
   (Column PGText)
   (Column PGText)
   (Column PGText)
@@ -47,6 +54,8 @@ tenantTable :: Table TenantTableW TenantTableR
 tenantTable = Table "tenants" (pTenant
    Tenant {
      tenant_id = (optional "id"),
+     tenant_createdat = (optional "created_at"),
+     tenant_updatedat = (optional "updated_at"),
      tenant_name = (required "name"),
      tenant_firstname = (required "first_name"),
      tenant_lastname = (required "last_name"),
@@ -276,3 +285,14 @@ instance D.Default Constant () (Maybe (Column PGText)) where
 
 instance D.Default Constant Text (Column (Nullable PGText)) where
   def = Constant (toNullable.pgStrictText)
+
+instance D.Default Constant () (Maybe (Column PGTimestamptz)) where
+  def = Constant (\_ -> Nothing)
+
+instance D.Default Constant UTCTime (Maybe (Column PGTimestamptz)) where
+  def = Constant (\time -> Just $ pgUTCTime time)
+
+
+create_item :: (D.Default Constant haskells columnsW, D.Default QueryRunner returned b) 
+    => Connection -> Table columnsW returned -> haskells -> IO b
+create_item conn table item = fmap Prelude.head $ runInsertManyReturning conn table [constant item] id
diff --git a/SpockOpaleye/src/TenantApi.hs b/SpockOpaleye/src/TenantApi.hs
index f9c52e0..12e425b 100644
--- a/SpockOpaleye/src/TenantApi.hs
+++ b/SpockOpaleye/src/TenantApi.hs
@@ -27,7 +27,7 @@ import           UserApi
 
 create_tenant :: Connection -> TenantIncoming -> IO Tenant
 create_tenant conn tenant = do
-  fmap Prelude.head $ runInsertManyReturning conn tenantTable [constant tenant] id
+  create_item conn tenantTable tenant 
 
 activate_tenant :: Connection -> Tenant -> IO Tenant
 activate_tenant conn tenant = set_tenant_status conn tenant TenantStatusActive