重复节综合运用

需求场景

• 系统附件：根据业务表单内容，计算所需相关附件，用户无法对附件做添加删除操作。
• 用户附件：用户可追加补充附件，可以对附件做添加或删除操作。
• 动态删除：根据重复节A条目，自动计算出重复节B中的特定条目；A重复节删除条目时，B重复节需要删除相关联条目。
  
  
  

开发要点

简单实现

• 如业务需求中，每个业务选项只产生一个或多个相同数量附件，则可以使用单个重复节简单完成
• 使用group属性中的 MinOccur $INDEX 进行控制

• 使用group前端属性中的 MinOccur 控制最小行数

• 使用 $INDEX 与 业务类型(fieldBizType) 进行对首行初值进行动态变更
• 并且设置首行readonly属性值

复杂实现

• 如业务需求中，每个业务选项会产生不同数量的附件时

• 表单中设置两组重复节，groupSysAttachment与groupUserAttachment
• groupSysAttachment设置readOnly属性为true只读，只允许messenger操作
• groupUserAttachment为用户可操作重复节

• 根据“办理事项”的onFieldChange事件，计算所需附件

@Override
public InfoPlusResponse onFieldChanging(InfoPlusEvent e) {
    InfoPlusExampleRepeat form = e.toBean(InfoPlusExampleRepeat.class);
    switch (e.getField()) {
        case "fieldBizType":
            if(form.getBizType()!=null && StringUtils.isNotEmpty(form.getBizType().getCodeId())) {
                List<InfoPlusExampleRepeatSysAttachment> attachmentList=new ArrayList<>();
                switch (form.getBizType().getCodeId()) {
                    case "10": {
                        InfoPlusExampleRepeatSysAttachment att = new InfoPlusExampleRepeatSysAttachment();
                        att.setSysAttachmentName("因公出国附件1");
                        att.setSysAttachmentRequired(new CodeItemImpl("1"));
                        attachmentList.add(att);

                        InfoPlusExampleRepeatSysAttachment att1 = new InfoPlusExampleRepeatSysAttachment();
                        att1.setSysAttachmentName("因公出国附件2");
                        att1.setSysAttachmentRequired(new CodeItemImpl("1"));
                        attachmentList.add(att1);
                    }
                    break;
                    case "20": {
                        InfoPlusExampleRepeatSysAttachment att = new InfoPlusExampleRepeatSysAttachment();
                            att.setSysAttachmentName("因私出国附件1");
                            att.setSysAttachmentRequired(new CodeItemImpl("1"));
                            attachmentList.add(att);
                            InfoPlusExampleRepeatSysAttachment att1 = new InfoPlusExampleRepeatSysAttachment();
                            att1.setSysAttachmentName("因私出国附件2");
                            att1.setSysAttachmentRequired(new CodeItemImpl("1"));
                            attachmentList.add(att1);
                            InfoPlusExampleRepeatSysAttachment att2 = new InfoPlusExampleRepeatSysAttachment();
                            att2.setSysAttachmentName("因私出国附件3");
                            att2.setSysAttachmentRequired(new CodeItemImpl("1"));
                            attachmentList.add(att2);
                        }
                        break;
                    case "30": {
                            InfoPlusExampleRepeatSysAttachment att = new InfoPlusExampleRepeatSysAttachment();
                            att.setSysAttachmentName("在职证明附件");
                            attachmentList.add(att);
                        }
                        break;
                    case "40": {
                            InfoPlusExampleRepeatSysAttachment att = new InfoPlusExampleRepeatSysAttachment();
                            att.setSysAttachmentName("收入证明附件");
                            attachmentList.add(att);
                        }
                        break;
                    }
                    form.setSysAttachment(attachmentList);
                }
            break;
        }
        return new InfoPlusResponse(e, form);
    }

案例地址

动态删除

根据重复节A条目，自动计算出重复节B中的特定条目；A重复节删除条目时，B重复节需要删除相关联条目。

例：重复节A为成员列表；重复节B为成员所需上传的特定附件（只读属性，用户不可操作，由后端计算生成）。

• 因重复节没有删除条目的filedChange事件，所以需要使用其他方法实现
• 在重复节A的上一层级（与重复节同级或上级），建立一个memberCount字段（类型：int，控件样式：hidden）设置fieldChange事件
• memberCount字段value属性设置为count($fieldRepeatMemberName)，此处为重复节A中任意字段，只用于动态存储重复节A条目数量

@Override
public InfoPlusResponse onFieldChanging(InfoPlusEvent e) {
    InfoPlusExampleRepeat form = e.toBean(InfoPlusExampleRepeat.class);
    switch (e.getField()) {
        case "fieldMemberCount":
            //此处无法获取当前删除操作的重复节A的条目，需要遍历重复节B中已经生成的条目进行比对计算
            //具体实现方法
            calculateMemberAttachments(form)
            break;
        }
    return new InfoPlusResponse(e, form);
}

private void calculateMemberAttachments(InfoPlusExampleRepeat form) {
    //已存在的附件 需保留

    //附件列表
    List<MemberAttachment> attachments = form.getMemberAttachments();
    if (attachments == null) {
        attachments = new ArrayList<>();
        form.setMemberAttachments(attachments);
    }
        
    Map<String, MemberAttachment> map = new HashMap<>();
    attachments.forEach(a -> map.put(a.getMemberAttachmentName(), a));
    attachments.clear();

    //成员列表
    List<Member> members = form.getMembers();
    if (members != null) {
        for (Member member : members) {
            if (StringUtils.isNotEmpty(member.getMemberName())) {
                String attachmentName = String.format("%s的材料证明",member.getMemberName());
                MemberAttachment memberAttachment = map.get(attachmentName);
                if (memberAttachment == null) {
                    memberAttachment = new MemberAttachment();
                    memberAttachment.setMemberAttachmentName(attachmentName);
                    memberAttachment.setMemberAttachmentRequired(YesNo.是);
                    memberAttachment.setMemberAttachmentRequiredMark("*");
                }
                attachments.add(memberAttachment);
        
                String attachmentName2 = String.format("%s的条款同意书",member.getMemberName());
                MemberAttachment memberAttachment2 = map.get(attachmentName2);
                if (memberAttachment2 == null) {
                    memberAttachment2 = new MemberAttachment();
                    memberAttachment2.setMemberAttachmentName(attachmentName2);
                    memberAttachment2.setMemberAttachmentRequired(YesNo.是);
                    memberAttachment2.setMemberAttachmentRequiredMark("*");
                }
                attachments.add(memberAttachment2);
            }
        }
    }
}