26 lines
1.3 KiB
C#
26 lines
1.3 KiB
C#
/// <summary>
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/// Adds a new item into {listPropertyName} from {entityTypeName}.
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/// </summary>
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/// <param name="dbContext">The database context.</param>
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/// <param name="{primaryKeyVarName}">The {entityTypeName} key to get</param>
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/// <param name="{listItemCreateVarName}">The item to add to {listPropertyName}.</param>
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/// <returns>The success of the operation, a message, and a projection of the added item. </returns>
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public static (bool, string, {returnTypeFullName}) Add{listEntityTypeName}To{entityTypeName}(this {contextFullName} dbContext,
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{primaryKeyFullName} {primaryKeyVarName}, {listEntityCreateFullName} {listItemCreateVarName})
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{
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var entityQuery = from aEntity in dbContext.{propertyName}
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where aEntity.{primaryKeyPropertyName} == {primaryKeyVarName}
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let itemsInList = aEntity.{listPropertyName}
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select aEntity;
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var entity = entityQuery.FirstOrDefault();
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if (entity == null) return (false, $"{entityTypeName} Not found.", null);
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var newListItem = new {listEntityFullName}({listItemCreateVarName});
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entity.{listPropertyName}.Add(newListItem);
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var success = dbContext.SaveChanges() >= 0;
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return !success ? (false, "Error saving changes in the Database. Action: Create {listEntityTypeName} in {entityTypeName}.", null) :
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(true, string.Empty, new {returnTypeFullName}(newListItem));
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} |