using System.Linq.Expressions;
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namespace CMS.Plugin.HIAWms.Domain.WmsMaterialStocks
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{
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/// <summary>
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/// WmsMaterialStock规约
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/// </summary>
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public class WmsMaterialStockSpecification : Volo.Abp.Specifications.Specification<WmsMaterialStock>
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{
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private readonly string _materialName;
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/// <summary>
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/// Initializes a new instance of the <see cref="WmsMaterialStockSpecification"/> class.
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/// </summary>
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public WmsMaterialStockSpecification()
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{
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="WmsMaterialStockSpecification"/> class.
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/// </summary>
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/// <param name="materialName">The name.</param>
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public WmsMaterialStockSpecification(string materialName = null)
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{
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_materialName = materialName;
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}
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/// <inheritdoc />
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public override Expression<Func<WmsMaterialStock, bool>> ToExpression()
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{
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Expression<Func<WmsMaterialStock, bool>> expression = c => 1 == 1;
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if (_materialName != null)
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{
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expression = expression.And(c => c.MaterialNo == _materialName);
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}
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return expression;
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}
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}
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}
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