Change table_name of ShanghaiTen

db/migrate/1_create_forecasts.rb → db/migrate/1_create_city_forecasts.rb

-class CreateForecasts < ActiveRecord::Migration[5.0]
+class CreateCityForecasts < ActiveRecord::Migration[5.0]
   def up
-    create_table :forecasts do |t|
-      t.datetime :datetime
+    create_table :city_forecasts do |t|
+      t.date :date
       t.integer :temp_low
       t.integer :temp_high
       t.string :weather_text
@@ -14,11 +14,11 @@ class CreateForecasts < ActiveRecord::Migration[5.0]
     end
 # 两个index 一起查询会不会导致其中一个作用几乎消失
 # 需不需要按城市来分表
-    add_index :forecasts, :cityname
-    add_index :forecasts, :datetime
+    add_index :city_forecasts, :cityname
+    add_index :city_forecasts, :datetime
   end
 
   def down
-    drop_table :forecasts
+    drop_table :city_forecasts
   end
 end

lib/weather-model/source_schema.rb

@@ -5,11 +5,11 @@ module WeatherModel
       ['Forecast']
     end
 
-    ShanghaiTen = {
+    CityForecast = {
       sort: 'Forecast',
-      table_name: :forecasts,
+      table_name: :city_forecasts,
       schema: {
-        datetime: :datetime,
+        date: :date,
         cityname: :string,
         temp_high: :string,
         temp_low: :string,
@@ -19,7 +19,7 @@ module WeatherModel
         win_speed: :string,
       },
       options: {
-        index: [:cityname],
+        index: [:cityname, :date],
         expire: 1,
         unique: :mysql_id,
         father: nil,