PI06 i PI06-1. Docker definitions for MSSQL and Postgres. Data seeder/generator for countries and people. Entity Framework example with variants for Postgres and MSSQL

SomeOfCSharpFeatures/Extensions/Program.cs

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+namespace Extensions;
+
+public enum Days
+{
+  Monday, Tuesday, Wednesday,
+  Thursday, Friday, Saturday, Sunday
+}
+
+class Program
+{    
+  static void Main(string[] args)
+  {
+    var dict = new Dictionary<Days, List<Activity>>();
+    Activity a = new Activity
+    {
+      Person = "John",
+      Hours = 3,
+      Period = DayPeriod.Morning
+    };
+    dict.GetOrCreate(Days.Monday).Add(a);
+
+    a = new Activity
+    {
+      Person = "Mary",
+      Hours = 12,
+      Period = DayPeriod.Evening | DayPeriod.Night
+    };
+    dict.GetOrCreate(Days.Monday).Add(a);
+
+    a = new Activity
+    {
+      Person = "Peter",
+      Hours = 8,
+      Period = DayPeriod.Night
+    };
+    dict.GetOrCreate(Days.Tuesday).Add(a);
+
+    a = new Activity
+    {
+      Person = "Lisa",
+      Hours = 5,
+      Period = DayPeriod.Night | DayPeriod.Morning
+    };
+    dict.GetOrCreate(Days.Monday).Add(a);
+
+    int sum = SumNightActivity(dict);
+    Console.WriteLine(sum);
+
+  }
+
+  private static int SumNightActivity(Dictionary<Days, List<Activity>> dict)
+  {
+    int sum = 0;
+    foreach(var list in dict.Values)
+    {
+      sum += list.Where(a => (a.Period & DayPeriod.Night) == DayPeriod.Night)
+                 .Sum(a => a.Hours);                   
+    }
+    return sum;  
+  }
+}