Creation of EF Core Migrations - these execute using EF Tools, but are not integrated to run programmatically

Oqtane.Server/Migrations/EntityBuilders/BaseEntityBuilder.cs

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+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Migrations.Operations.Builders;
+using Oqtane.Migrations.Extensions;
+
+namespace Oqtane.Migrations.EntityBuilders
+{
+    public abstract class BaseEntityBuilder<TEntityBuilder> where TEntityBuilder : BaseEntityBuilder<TEntityBuilder>
+    {
+        private readonly MigrationBuilder _migrationBuilder;
+
+        protected BaseEntityBuilder(MigrationBuilder migrationBuilder)
+        {
+            _migrationBuilder = migrationBuilder;
+            ForeignKeys = new List<ForeignKey<TEntityBuilder>>();
+        }
+
+        private void AddKeys(CreateTableBuilder<TEntityBuilder> table)
+        {
+            table.AddPrimaryKey(PrimaryKey);
+            foreach (var foreignKey in ForeignKeys)
+            {
+                table.AddForeignKey(foreignKey);
+            }
+
+        }
+
+        protected abstract TEntityBuilder BuildTable(ColumnsBuilder table);
+
+        protected string EntityTableName { get; init; }
+
+        protected PrimaryKey<TEntityBuilder> PrimaryKey { get; init; }
+
+        protected List<ForeignKey<TEntityBuilder>> ForeignKeys { get; }
+
+        public void AddBooleanColumn(string name)
+        {
+            _migrationBuilder.AddColumn<bool>(name, EntityTableName);
+        }
+
+        public void AddDateTimeColumn(string name, bool nullable = false)
+        {
+            _migrationBuilder.AddColumn<DateTime>(name, EntityTableName, nullable: nullable);
+        }
+
+        /// <summary>
+        /// Creates a Migration to add an Index to the Entity (table)
+        /// </summary>
+        /// <param name="indexName">The name of the Index to create</param>
+        /// <param name="columnName">The name of the column to add to the index</param>
+        /// <param name="isUnique">A flag that determines if the Index should be Unique</param>
+        public virtual void AddIndex(string indexName, string columnName, bool isUnique = false)
+        {
+            _migrationBuilder.CreateIndex(
+                name: indexName,
+                table: EntityTableName,
+                column: columnName,
+                unique: isUnique);
+        }
+
+        /// <summary>
+        /// Creates a Migration to add an Index to the Entity (table)
+        /// </summary>
+        /// <param name="indexName">The name of the Index to create</param>
+        /// <param name="columnName">The names of the columns to add to the index</param>
+        /// <param name="isUnique">A flag that determines if the Index should be Unique</param>
+        public virtual void AddIndex(string indexName, string[] columnNames, bool isUnique = false)
+        {
+            _migrationBuilder.CreateIndex(
+                name: indexName,
+                table: EntityTableName,
+                columns: columnNames,
+                unique: isUnique);
+        }
+
+        public void AddStringColumn(string name, int length, bool nullable = false)
+        {
+            _migrationBuilder.AddColumn<string>(name, EntityTableName, maxLength: length, nullable: nullable);
+        }
+
+        public void AlterStringColumn(string name, int length, bool nullable = false)
+        {
+            _migrationBuilder.AlterColumn<string>(name, EntityTableName, maxLength: length, nullable: nullable);
+        }
+
+        /// <summary>
+        /// Creates a Migration to Create the Entity (table)
+        /// </summary>
+        public void Create()
+        {
+            _migrationBuilder.CreateTable(EntityTableName, BuildTable, null, AddKeys);
+        }
+
+        /// <summary>
+        /// Creates a Migration to Drop the Entity (table)
+        /// </summary>
+        public void Drop()
+        {
+            _migrationBuilder.DropTable(EntityTableName);
+        }
+
+        public void DropColumn(string name)
+        {
+            _migrationBuilder.DropColumn(name, EntityTableName);
+        }
+
+        /// <summary>
+        /// Creates a Migration to drop an Index from the Entity (table)
+        /// </summary>
+        /// <param name="indexName">The name of the Index to drop</param>
+        public virtual void DropIndex(string indexName)
+        {
+            _migrationBuilder.DropIndex(indexName, EntityTableName);
+        }
+    }
+}
+