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api/service/biz_query_helpers.js

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+/**
+ * 列表筛选、写入字段裁剪、审计日志列表补列（供 admin 控制器直接配合 baseModel 使用）
+ */
+const Sequelize = require("sequelize");
+const { Op } = Sequelize;
+
+function build_search_where(model, seach_option) {
+  const key = seach_option && seach_option.key;
+  const raw = seach_option && seach_option.value;
+  if (!key || raw === undefined || raw === null) return {};
+  const str = String(raw).trim();
+  if (str === "") return {};
+
+  const attr = model.rawAttributes[key];
+  if (!attr) {
+    return { [key]: { [Op.like]: `%${str}%` } };
+  }
+
+  const type_key = attr.type && attr.type.key;
+
+  if (type_key === "BOOLEAN") {
+    if (str === "true" || str === "1" || str === "是") return { [key]: true };
+    if (str === "false" || str === "0" || str === "否") return { [key]: false };
+    return {};
+  }
+
+  if (type_key === "ENUM") {
+    return { [key]: str };
+  }
+
+  if (
+    type_key === "INTEGER" ||
+    type_key === "BIGINT" ||
+    type_key === "FLOAT" ||
+    type_key === "DOUBLE" ||
+    type_key === "DECIMAL"
+  ) {
+    const n = Number(str);
+    if (!Number.isNaN(n)) return { [key]: n };
+    return {};
+  }
+
+  if (type_key === "DATE" || type_key === "DATEONLY") {
+    return { [key]: str };
+  }
+
+  return { [key]: { [Op.like]: `%${str}%` } };
+}
+
+function normalize_for_write(model, data, { for_create } = {}) {
+  const attrs = model.rawAttributes;
+  const out = {};
+  for (const k of Object.keys(data || {})) {
+    if (!attrs[k]) continue;
+    let v = data[k];
+    if (v === "") {
+      if (k === "id" && for_create) continue;
+      if (k.endsWith("_id") || k === "id") {
+        v = null;
+      } else if (attrs[k].allowNull) {
+        v = null;
+      }
+    }
+    if (k === "enabled_features" && typeof v === "string" && v.trim() !== "") {
+      try {
+        v = JSON.parse(v);
+      } catch (e) {
+        /* 保持原字符串 */
+      }
+    }
+    out[k] = v;
+  }
+  if (for_create && out.id !== undefined && (out.id === "" || out.id === null)) {
+    delete out.id;
+  }
+  return out;
+}
+
+function list_query_extra(model_name, model) {
+  if (model_name === "biz_audit_log") {
+    const tn = model.tableName;
+    return {
+      attributes: {
+        include: [[model.sequelize.col(`${tn}.created_at`), "created_at"]],
+      },
+    };
+  }
+  return {};
+}
+
+async function find_page(model, model_name, body, extra_find_options = {}) {
+  const param = body.param || body;
+  const page_option = param.pageOption || {};
+  const seach_option = param.seachOption || {};
+  const page_num = parseInt(page_option.page, 10) || 1;
+  const page_size = parseInt(page_option.pageSize, 10) || 20;
+  const offset = (page_num - 1) * page_size;
+  const where = build_search_where(model, seach_option);
+  return model.findAndCountAll({
+    where,
+    offset,
+    limit: page_size,
+    order: [["id", "DESC"]],
+    ...list_query_extra(model_name, model),
+    ...extra_find_options,
+  });
+}
+
+async function find_for_export(model, model_name, body, extra_find_options = {}) {
+  const param = body.param || body;
+  const where = build_search_where(model, param.seachOption || {});
+  const rows = await model.findAll({
+    where,
+    limit: 10000,
+    order: [["id", "DESC"]],
+    ...list_query_extra(model_name, model),
+    ...extra_find_options,
+  });
+  return { rows };
+}
+
+module.exports = {
+  build_search_where,
+  normalize_for_write,
+  list_query_extra,
+  find_page,
+  find_for_export,
+};