/* 创建者：菜刀居士的博客

 * 创建日期：2014年07月09号

 */

namespace Net.CRM.FetchXml

{

    using System;

    using Microsoft.Xrm.Sdk;

    using Microsoft.Xrm.Sdk.Query;

/// <summary>

    /// 使用FetchXml聚合查询,分组根据

    /// </summary>

    public class FetchXmlExtension

    {

        /// <summary>

        /// 分组聚合

        /// sql: select count(*),ownerid from account group by ownerid

        /// </summary>

        public void Group(IOrganizationService service)

        {

            string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>


                                    <entity name='account'>

                                        <attribute name='name' alias='name_count' aggregate='count' />


                                        <attribute name='ownerid' alias='ownerid' groupby='true' />


                                    </entity>

                                </fetch>";

            EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));

            if (ec != null && ec.Entities.Count > 0)

            {

                Entity en = ec.Entities[0];

                //获取结果

                decimal value = ((Money)((AliasedValue)en["name_count"]).Value).Value;

                EntityReference ownerEr = (EntityReference)((AliasedValue)en["ownerid"]).Value;

            }

        }

/// <summary>

        /// 分组聚合,按年分组

        /// </summary>

        public void GroupByYear(IOrganizationService service)

        {

            string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>


                                    <entity name='account'>

                                       <attribute name='accountid' alias='account_count' aggregate='count'/>


                                       <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 


                                       <attribute name='actualclosedate' groupby='true' dategrouping='year' alias='year' />


                                    </entity>

                                </fetch>";

            EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));

            if (ec != null && ec.Entities.Count > 0)

            {

                Entity en = ec.Entities[0];

                //获取结果

                int value_year = (Int32)((AliasedValue)en["year"]).Value;

                int value_count = (Int32)((AliasedValue)en["account_count"]).Value;

                decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;


            }

        }

/// <summary>

        /// 分组聚合,按季度分组

        /// </summary>

        public void GroupByQuarter(IOrganizationService service)

        {

            string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>


                                    <entity name='account'>

                                       <attribute name='accountid' alias='account_count' aggregate='count'/>


                                       <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 


                                       <attribute name='actualclosedate' groupby='true' dategrouping='quarter' alias='quarter' />


                                    </entity>

                                </fetch>";

            EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));

            if (ec != null && ec.Entities.Count > 0)

            {

                Entity en = ec.Entities[0];

                //获取结果

                int value_quarter = (Int32)((AliasedValue)en["quarter"]).Value;

                int value_count = (Int32)((AliasedValue)en["account_count"]).Value;

                decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;

            }

        }

/// <summary>

        /// 分组聚合,按月分组

        /// </summary>

        public void GroupByMonth(IOrganizationService service)

        {

            string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>


                                    <entity name='account'>

                                       <attribute name='accountid' alias='account_count' aggregate='count'/>


                                       <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 


                                       <attribute name='actualclosedate' groupby='true' dategrouping='month' alias='month' />


                                    </entity>

                                </fetch>";

            EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));

            if (ec != null && ec.Entities.Count > 0)

            {

                Entity en = ec.Entities[0];

                //获取结果

                int value_month = (Int32)((AliasedValue)en["month"]).Value;

                int value_count = (Int32)((AliasedValue)en["account_count"]).Value;

                decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;

            }

        }

/// <summary>

        /// 分组聚合,按周分组

        /// </summary>

        public void GroupByWeek(IOrganizationService service)

        {

            string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>


                                    <entity name='account'>

                                       <attribute name='accountid' alias='account_count' aggregate='count'/>


                                       <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 


                                       <attribute name='actualclosedate' groupby='true' dategrouping='week' alias='week' />


                                    </entity>

                                </fetch>";

            EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));

            if (ec != null && ec.Entities.Count > 0)

            {

                Entity en = ec.Entities[0];

                //获取结果

                int value_week = (Int32)((AliasedValue)en["week"]).Value;

                int value_count = (Int32)((AliasedValue)en["account_count"]).Value;

                decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;

            }

        }

/// <summary>

        /// 分组聚合,按日分组

        /// </summary>

        public void GroupByDay(IOrganizationService service)

        {

            string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>


                                    <entity name='account'>

                                       <attribute name='accountid' alias='account_count' aggregate='count'/>


                                       <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 


                                       <attribute name='actualclosedate' groupby='true' dategrouping='day' alias='day' />


                                    </entity>

                                </fetch>";

            EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));

            if (ec != null && ec.Entities.Count > 0)

            {

                Entity en = ec.Entities[0];

                //获取结果

                int value_day = (Int32)((AliasedValue)en["day"]).Value;

                int value_count = (Int32)((AliasedValue)en["account_count"]).Value;

                decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;

            }

        }

/// <summary>

        /// 分组聚合,多个分组根据

        /// </summary>

        public void GroupByYearAndQuarter(IOrganizationService service)

        {

            string fetchXml = @"<fetch distinct='false' mapping='logical' aggregate='true'>


                                    <entity name='account'>

                                       <attribute name='accountid' alias='account_count' aggregate='count'/>


                                       <attribute name='estimatedvalue' alias='estimatedvalue_sum' aggregate='sum'/> 


                                       <attribute name='actualclosedate' groupby='true' dategrouping='year' alias='year' />


                                       <attribute name='actualclosedate' groupby='true' dategrouping='quarter' alias='quarter' />


                                    </entity>

                                </fetch>";

            EntityCollection ec = service.RetrieveMultiple(new FetchExpression(fetchXml));

            if (ec != null && ec.Entities.Count > 0)

            {

                Entity en = ec.Entities[0];

                //获取结果

                int value_year = (Int32)((AliasedValue)en["year"]).Value;

                int value_quarter = (Int32)((AliasedValue)en["quarter"]).Value;

                int value_count = (Int32)((AliasedValue)en["account_count"]).Value;

                decimal value_sum = ((Money)((AliasedValue)en["estimatedvalue_sum"]).Value).Value;

            }

        }

    }

}