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				|  |  |  package cn.iocoder.dashboard.modules.tool.service.codegen.impl;
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				|  |  |  
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				|  |  |  import cn.hutool.core.collection.CollUtil;
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				|  |  | -import cn.hutool.core.map.MapUtil;
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				|  |  | -import cn.hutool.core.util.StrUtil;
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				|  |  | -import cn.iocoder.dashboard.framework.mybatis.core.dataobject.BaseDO;
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				|  |  | -import cn.iocoder.dashboard.modules.tool.convert.codegen.CodegenConvert;
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				|  |  | -import cn.iocoder.dashboard.modules.tool.dal.mysql.dao.coegen.*;
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				|  |  | -import cn.iocoder.dashboard.modules.tool.dal.mysql.dataobject.codegen.*;
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				|  |  | -import cn.iocoder.dashboard.modules.tool.enums.codegen.*;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dao.coegen.ToolCodegenColumnMapper;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dao.coegen.ToolCodegenTableMapper;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dao.coegen.ToolInformationSchemaColumnMapper;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dao.coegen.ToolInformationSchemaTableMapper;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dataobject.codegen.ToolCodegenColumnDO;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dataobject.codegen.ToolCodegenTableDO;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dataobject.codegen.ToolInformationSchemaColumnDO;
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				|  |  | +import cn.iocoder.dashboard.modules.tool.dal.mysql.dataobject.codegen.ToolInformationSchemaTableDO;
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				|  |  |  import cn.iocoder.dashboard.modules.tool.service.codegen.ToolCodegenService;
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				|  |  | -import com.google.common.collect.Sets;
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				|  |  |  import org.springframework.stereotype.Service;
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				|  |  |  import org.springframework.transaction.annotation.Transactional;
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				|  |  |  
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				|  |  |  import javax.annotation.Resource;
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				|  |  | -import java.math.BigDecimal;
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				|  |  | -import java.util.*;
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				|  |  | +import java.util.List;
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				|  |  |  
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				|  |  |  /**
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				|  |  |   * 代码生成 Service 实现类
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				|  | @@ -25,74 +24,6 @@ import java.util.*;
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				|  |  |  @Service
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				|  |  |  public class ToolCodegenServiceImpl implements ToolCodegenService {
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				|  |  |  
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				|  |  | -    /**
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				|  |  | -     * 字段名与 {@link ToolCodegenColumnListConditionEnum} 的默认映射
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				|  |  | -     * 注意,字段的匹配以后缀的方式
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				|  |  | -     */
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				|  |  | -    private static final Map<String, ToolCodegenColumnListConditionEnum> columnListOperationConditionMappings =
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				|  |  | -            MapUtil.<String, ToolCodegenColumnListConditionEnum>builder()
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				|  |  | -                    .put("name", ToolCodegenColumnListConditionEnum.LIKE)
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				|  |  | -                    .put("time", ToolCodegenColumnListConditionEnum.BETWEEN)
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				|  |  | -                    .put("date", ToolCodegenColumnListConditionEnum.BETWEEN)
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				|  |  | -                    .build();
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				|  |  | -
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				|  |  | -    /**
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				|  |  | -     * 字段名与 {@link ToolCodegenColumnHtmlTypeEnum} 的默认映射
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				|  |  | -     * 注意,字段的匹配以后缀的方式
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				|  |  | -     */
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				|  |  | -    private static final Map<String, ToolCodegenColumnHtmlTypeEnum> columnHtmlTypeMappings =
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				|  |  | -            MapUtil.<String, ToolCodegenColumnHtmlTypeEnum>builder()
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				|  |  | -                    .put("status", ToolCodegenColumnHtmlTypeEnum.RADIO)
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				|  |  | -                    .put("sex", ToolCodegenColumnHtmlTypeEnum.RADIO)
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				|  |  | -                    .put("type", ToolCodegenColumnHtmlTypeEnum.SELECT)
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				|  |  | -                    .put("image", ToolCodegenColumnHtmlTypeEnum.UPLOAD_IMAGE)
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				|  |  | -                    .put("file", ToolCodegenColumnHtmlTypeEnum.UPLOAD_FILE)
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				|  |  | -                    .put("content", ToolCodegenColumnHtmlTypeEnum.EDITOR)
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				|  |  | -                    .build();
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				|  |  | -
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				|  |  | -    /**
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				|  |  | -     * 新增操作,不需要传递的字段
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				|  |  | -     */
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				|  |  | -    private static final Set<String> CREATE_OPERATION_EXCLUDE_COLUMN = Sets.newHashSet("id");
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				|  |  | -    /**
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				|  |  | -     * 修改操作,不需要传递的字段
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				|  |  | -     */
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				|  |  | -    private static final Set<String> UPDATE_OPERATION_EXCLUDE_COLUMN = Sets.newHashSet();
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				|  |  | -    /**
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				|  |  | -     * 列表操作的条件,不需要传递的字段
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				|  |  | -     */
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				|  |  | -    private static final Set<String> LIST_OPERATION_EXCLUDE_COLUMN = Sets.newHashSet("id");
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				|  |  | -    /**
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				|  |  | -     * 列表操作的结果,不需要返回的字段
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				|  |  | -     */
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				|  |  | -    private static final Set<String> LIST_OPERATION_RESULT_EXCLUDE_COLUMN = Sets.newHashSet();
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				|  |  | -
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				|  |  | -    /**
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				|  |  | -     * Java 类型与 MySQL 类型的映射关系
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				|  |  | -     */
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				|  |  | -    private static final Map<String, Set<String>> javaTypeMappings = MapUtil.<String, Set<String>>builder()
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				|  |  | -            .put(Boolean.class.getSimpleName(), Sets.newHashSet("bit"))
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				|  |  | -            .put(Integer.class.getSimpleName(), Sets.newHashSet("tinyint", "smallint", "mediumint", "int"))
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				|  |  | -            .put(Long.class.getSimpleName(), Collections.singleton("bigint"))
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				|  |  | -            .put(Double.class.getSimpleName(), Sets.newHashSet("float", "double"))
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				|  |  | -            .put(BigDecimal.class.getSimpleName(), Sets.newHashSet("decimal", "numeric"))
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				|  |  | -            .put(String.class.getSimpleName(), Sets.newHashSet("tinytext", "text", "mediumtext", "longtext", // 长文本
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				|  |  | -                    "char", "varchar", "nvarchar", "varchar2")) // 短文本
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				|  |  | -            .put(Date.class.getSimpleName(), Sets.newHashSet("datetime", "time", "date", "timestamp"))
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				|  |  | -            .build();
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				|  |  | -
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				|  |  | -    static {
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				|  |  | -        // 处理 OPERATION 相关的字段
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				|  |  | -        Arrays.stream(BaseDO.class.getDeclaredFields()).forEach(field -> {
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				|  |  | -            CREATE_OPERATION_EXCLUDE_COLUMN.add(field.getName());
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				|  |  | -            UPDATE_OPERATION_EXCLUDE_COLUMN.add(field.getName());
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				|  |  | -            LIST_OPERATION_EXCLUDE_COLUMN.add(field.getName());
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				|  |  | -            LIST_OPERATION_RESULT_EXCLUDE_COLUMN.add(field.getName());
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				|  |  | -        });
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				|  |  | -        LIST_OPERATION_EXCLUDE_COLUMN.remove("create_time"); // 创建时间,还是可能需要传递的
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				|  |  | -        LIST_OPERATION_RESULT_EXCLUDE_COLUMN.remove("create_time"); // 创建时间,还是需要返回的
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				|  |  | -    }
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				|  |  | -
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				|  |  |      @Resource
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				|  |  |      private ToolInformationSchemaTableMapper informationSchemaTableMapper;
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				|  |  |      @Resource
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				|  | @@ -102,6 +33,11 @@ public class ToolCodegenServiceImpl implements ToolCodegenService {
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				|  |  |      @Resource
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				|  |  |      private ToolCodegenColumnMapper codegenColumnMapper;
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				|  |  |  
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				|  |  | +    @Resource
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				|  |  | +    private ToolCodegenBuilder codegenBuilder;
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				|  |  | +    @Resource
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				|  |  | +    private ToolCodegenEngine codegenEngine;
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				|  |  | +
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				|  |  |      @Override
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				|  |  |      @Transactional
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				|  |  |      public Long createCodegenTable(String tableName) {
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				|  | @@ -119,102 +55,16 @@ public class ToolCodegenServiceImpl implements ToolCodegenService {
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				|  |  |              throw new RuntimeException(""); // TODO
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				|  |  |          }
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				|  |  |  
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				|  |  | -        // 将 table 插入到数据库
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				|  |  | -        ToolCodegenTableDO table = CodegenConvert.INSTANCE.convert(schemaTable);
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				|  |  | -        initTableDefault(table);
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				|  |  | +        // 构建 ToolCodegenTableDO 对象,插入到 DB 中
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				|  |  | +        ToolCodegenTableDO table = codegenBuilder.buildTable(schemaTable);
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				|  |  |          codegenTableMapper.insert(table);
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				|  |  | -        // 将 column 插入到数据库
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				|  |  | -        List<ToolCodegenColumnDO> columns = CodegenConvert.INSTANCE.convertList(schemaColumns);
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				|  |  | +        // 构建 ToolCodegenColumnDO 数组,插入到 DB 中
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				|  |  | +        List<ToolCodegenColumnDO> columns = codegenBuilder.buildColumns(schemaColumns);
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				|  |  |          columns.forEach(column -> {
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				|  |  | -            initColumnDefault(column);
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				|  |  |              column.setTableId(table.getId());
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				|  |  |              codegenColumnMapper.insert(column); // TODO 批量插入
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				|  |  |          });
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				|  |  |          return table.getId();
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				|  |  |      }
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				|  |  |  
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				|  |  | -    /**
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				|  |  | -     * 初始化 Table 表的默认字段
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				|  |  | -     *
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				|  |  | -     * @param table 表定义
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				|  |  | -     */
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				|  |  | -    private void initTableDefault(ToolCodegenTableDO table) {
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				|  |  | -        table.setModuleName(StrUtil.subBefore(table.getTableName(),
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				|  |  | -                '_', false)); // 第一个 _ 前缀的前面,作为 module 名字
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				|  |  | -        table.setBusinessName(StrUtil.subAfter(table.getTableName(),
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				|  |  | -                '_', false)); // 第一个 _ 前缀的后面,作为 module 名字
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				|  |  | -        table.setBusinessName(StrUtil.toCamelCase(table.getBusinessName())); // 可能存在多个 _ 的情况,转换成驼峰
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				|  |  | -        table.setClassName(StrUtil.upperFirst(StrUtil.toCamelCase(table.getTableName()))); // 驼峰 + 首字母大写
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				|  |  | -        table.setClassComment(StrUtil.subBefore(table.getTableComment(), // 去除结尾的表,作为类描述
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				|  |  | -                '表', true));
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				|  |  | -        table.setAuthor("芋艿"); // TODO 稍后改成创建人
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				|  |  | -        table.setTemplateType(ToolCodegenTemplateTypeEnum.CRUD.getType());
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				|  |  | -    }
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				|  |  | -
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				|  |  | -    /**
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				|  |  | -     * 初始化 Column 列的默认字段
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				|  |  | -     *
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				|  |  | -     * @param column 列定义
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				|  |  | -     */
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				|  |  | -    private void initColumnDefault(ToolCodegenColumnDO column) {
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				|  |  | -        // 处理 Java 相关的字段的默认值
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				|  |  | -        processColumnJava(column);
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				|  |  | -        // 处理 CRUD 相关的字段的默认值
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				|  |  | -        processColumnOperation(column);
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				|  |  | -        // 处理 UI 相关的字段的默认值
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				|  |  | -        processColumnUI(column);
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				|  |  | -    }
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				|  |  | -
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				|  |  | -    private void processColumnJava(ToolCodegenColumnDO column) {
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				|  |  | -        // 处理 javaField 字段
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				|  |  | -        column.setJavaField(StrUtil.toCamelCase(column.getColumnName()));
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				|  |  | -        // 处理 dictType 字段,暂无
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				|  |  | -        // 处理 javaType 字段
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				|  |  | -        String dbType = StrUtil.subBefore(column.getColumnType(), '(', false);
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				|  |  | -        javaTypeMappings.entrySet().stream()
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				|  |  | -                .filter(entry -> entry.getValue().contains(dbType))
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				|  |  | -                .findFirst().ifPresent(entry -> column.setJavaType(entry.getKey()));
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				|  |  | -        if (column.getJavaType() == null) {
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				|  |  | -            throw new IllegalStateException(String.format("column(%s) 的数据库类型(%s) 找不到匹配的 Java 类型",
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				|  |  | -                    column.getColumnName(), column.getColumnType()));
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				|  |  | -        }
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				|  |  | -    }
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				|  |  | -
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				|  |  | -    private void processColumnOperation(ToolCodegenColumnDO column) {
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				|  |  | -        // 处理 createOperation 字段
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				|  |  | -        column.setCreateOperation(!CREATE_OPERATION_EXCLUDE_COLUMN.contains(column.getJavaField())
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				|  |  | -            && !column.getPrimaryKey()); // 对于主键,创建时无需传递
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				|  |  | -        // 处理 updateOperation 字段
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				|  |  | -        column.setUpdateOperation(!UPDATE_OPERATION_EXCLUDE_COLUMN.contains(column.getJavaField())
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				|  |  | -            || column.getPrimaryKey()); // 对于主键,更新时需要传递
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				|  |  | -        // 处理 listOperation 字段
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				|  |  | -        column.setListOperation(!LIST_OPERATION_EXCLUDE_COLUMN.contains(column.getJavaField())
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				|  |  | -                && !column.getPrimaryKey()); // 对于主键,列表过滤不需要传递
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				|  |  | -        // 处理 listOperationCondition 字段
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				|  |  | -        columnListOperationConditionMappings.entrySet().stream()
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				|  |  | -                .filter(entry -> StrUtil.endWithIgnoreCase(column.getJavaField(), entry.getKey()))
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				|  |  | -                .findFirst().ifPresent(entry -> column.setListOperationCondition(entry.getValue().getCondition()));
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				|  |  | -        if (column.getListOperationCondition() == null) {
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				|  |  | -            column.setListOperationCondition(ToolCodegenColumnListConditionEnum.EQ.getCondition());
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				|  |  | -        }
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				|  |  | -        // 处理 listOperationResult 字段
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				|  |  | -        column.setListOperationResult(!LIST_OPERATION_RESULT_EXCLUDE_COLUMN.contains(column.getJavaField()));
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				|  |  | -    }
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				|  |  | -
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				|  |  | -    private void processColumnUI(ToolCodegenColumnDO column) {
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				|  |  | -        // 基于后缀进行匹配
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				|  |  | -        columnHtmlTypeMappings.entrySet().stream()
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				|  |  | -                .filter(entry -> StrUtil.endWithIgnoreCase(column.getJavaField(), entry.getKey()))
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				|  |  | -                .findFirst().ifPresent(entry -> column.setHtmlType(entry.getValue().getType()));
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				|  |  | -        // 如果是 Boolean 类型时,设置为 radio 类型.
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				|  |  | -        // 其它类型,因为字段名可以相对保障,所以不进行处理。例如说 date 对应 datetime 类型.
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				|  |  | -        if (Boolean.class.getSimpleName().equals(column.getJavaType())) {
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				|  |  | -            column.setHtmlType(ToolCodegenColumnHtmlTypeEnum.RADIO.getType());
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				|  |  | -        }
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				|  |  | -        // 兜底,设置默认为 input 类型
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				|  |  | -        if (column.getHtmlType() == null) {
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				|  |  | -            column.setHtmlType(ToolCodegenColumnHtmlTypeEnum.INPUT.getType());
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				|  |  | -        }
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				|  |  | -    }
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				|  |  | -
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				|  |  |  }
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