2020-10-14 12:35:14 +00:00
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace COA.EnterpriseServices.DataAccess.Helpers
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{
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public class BaseHelper<T> where T : class, IRecord
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{
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2020-10-14 13:27:01 +00:00
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private readonly ICollection<IDataAccess<T>> dataAccessInstances;
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2020-10-14 12:35:14 +00:00
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public BaseHelper()
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{
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2020-10-14 13:27:01 +00:00
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dataAccessInstances = DataAccessManager.GetDataAccess<T>();
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2020-10-14 12:35:14 +00:00
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}
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protected TResult Invoke<TResult>(Func<IDataAccess<T>, TResult> func)
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{
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var results = new List<TResult>();
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foreach (var dataAccessInstance in dataAccessInstances)
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{
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results.Add(func(dataAccessInstance));
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}
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// if the "EF" version invokes first, return that value
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return results.FirstOrDefault(r => r != null && !r.Equals(default(TResult)));
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}
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2020-10-14 15:03:25 +00:00
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public virtual T Get(int id)
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{
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return Invoke(d => d.Get(id));
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}
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public virtual bool Add(T item)
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{
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return Invoke(d => d.Add(item));
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}
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2020-10-14 12:35:14 +00:00
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}
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}
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