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