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| 1 | +import { tableList } from './table'; |
| 2 | + |
| 3 | +// 创建数据库的方法 |
| 4 | +export const createDB = (dbName: string, version: number) => { |
| 5 | + return new Promise((resolve, reject) => { |
| 6 | + const request = window.indexedDB.open(dbName, version); |
| 7 | + request.onerror = (event: any) => { |
| 8 | + reject(event.target.error); |
| 9 | + }; |
| 10 | + request.onsuccess = (event: any) => { |
| 11 | + resolve(event.target.result); |
| 12 | + }; |
| 13 | + request.onupgradeneeded = (event: any) => { |
| 14 | + const db = event.target.result; // 数据库对象 |
| 15 | + // 创建存储库 |
| 16 | + tableList.forEach((item: any) => { |
| 17 | + const { tableDetails } = item; |
| 18 | + const objectStore = db.createObjectStore(tableDetails.name, tableDetails.primaryKey); |
| 19 | + tableDetails.column.forEach((i: any) => { |
| 20 | + if (i.isIndex) { |
| 21 | + objectStore.createIndex(i.name, i.keyPath, i.options); |
| 22 | + } |
| 23 | + }); |
| 24 | + }); |
| 25 | + }; |
| 26 | + }); |
| 27 | +}; |
| 28 | + |
| 29 | +type TableType = 'workspaceConsoleDDL'; |
| 30 | + |
| 31 | +type DBType = 'chat2db'; |
| 32 | + |
| 33 | +// 添加数据 |
| 34 | +export const addData = (db: DBType, tableName: TableType, data: any) => { |
| 35 | + return new Promise((resolve, reject) => { |
| 36 | + const transaction = window._indexedDB[db].transaction(tableName, 'readwrite'); |
| 37 | + const objectStore = transaction.objectStore(tableName); |
| 38 | + const request = objectStore.add(data); |
| 39 | + request.onsuccess = () => { |
| 40 | + resolve(true); |
| 41 | + }; |
| 42 | + request.onerror = (error) => { |
| 43 | + reject(error); |
| 44 | + }; |
| 45 | + }); |
| 46 | +}; |
| 47 | + |
| 48 | +// 通过索引删除数据 |
| 49 | +export const deleteDataByIndex = (db: DBType, tableName: TableType, indexName, indexValue) => { |
| 50 | + return new Promise((resolve, reject) => { |
| 51 | + const transaction = window._indexedDB[db].transaction(tableName, 'readwrite'); |
| 52 | + const objectStore = transaction.objectStore(tableName); |
| 53 | + const request = objectStore.index(indexName).delete(indexValue); |
| 54 | + request.onsuccess = () => { |
| 55 | + resolve(true); |
| 56 | + }; |
| 57 | + request.onerror = () => { |
| 58 | + reject(false); |
| 59 | + }; |
| 60 | + }); |
| 61 | +}; |
| 62 | + |
| 63 | +// 通过主键删除数据 |
| 64 | +export const deleteData = (db: DBType, tableName: TableType, key: any) => { |
| 65 | + return new Promise((resolve, reject) => { |
| 66 | + const transaction = window._indexedDB[db].transaction(tableName, 'readwrite'); |
| 67 | + const objectStore = transaction.objectStore(tableName); |
| 68 | + const request = objectStore.delete(key); |
| 69 | + request.onsuccess = () => { |
| 70 | + resolve(true); |
| 71 | + }; |
| 72 | + request.onerror = () => { |
| 73 | + reject(false); |
| 74 | + }; |
| 75 | + }); |
| 76 | +}; |
| 77 | + |
| 78 | +// 通过索引查询数据,支持传入多个索引 |
| 79 | +export const getDataByIndex = (db: DBType, tableName: TableType, indexName: string, indexValue: any) => { |
| 80 | + return new Promise((resolve, reject) => { |
| 81 | + const transaction = window._indexedDB[db].transaction(tableName, 'readwrite'); |
| 82 | + const objectStore = transaction.objectStore(tableName); |
| 83 | + const request = objectStore.index(indexName).get(indexValue); |
| 84 | + request.onsuccess = () => { |
| 85 | + resolve(request.result); |
| 86 | + }; |
| 87 | + request.onerror = () => { |
| 88 | + reject(false); |
| 89 | + }; |
| 90 | + }); |
| 91 | +}; |
| 92 | + |
| 93 | +// 通过游标查询数据，支持传入多个条件 |
| 94 | +export const getDataByCursor = (db: DBType, tableName: TableType, condition: {[key in string]: any} |
| 95 | +) => { |
| 96 | + return new Promise((resolve, reject) => { |
| 97 | + const transaction = window._indexedDB[db].transaction(tableName, 'readwrite'); |
| 98 | + const objectStore = transaction.objectStore(tableName); |
| 99 | + const request = objectStore.openCursor(); |
| 100 | + const result: any[] = []; |
| 101 | + request.onsuccess = (event: any) => { |
| 102 | + const cursor = event.target.result; |
| 103 | + if (cursor) { |
| 104 | + let flag = true; |
| 105 | + Object.keys(condition).forEach((key) => { |
| 106 | + if (cursor.value[key] !== condition[key]) { |
| 107 | + flag = false; |
| 108 | + } |
| 109 | + }); |
| 110 | + if (flag) { |
| 111 | + result.push(cursor.value); |
| 112 | + } |
| 113 | + cursor.continue(); |
| 114 | + } else { |
| 115 | + resolve(result); |
| 116 | + } |
| 117 | + }; |
| 118 | + request.onerror = () => { |
| 119 | + reject(false); |
| 120 | + }; |
| 121 | + }); |
| 122 | + |
| 123 | +}; |
| 124 | + |
| 125 | + |
| 126 | +// 修改数据 |
| 127 | +export const updateData = (db: DBType, tableName: TableType, data: any) => { |
| 128 | + return new Promise((resolve, reject) => { |
| 129 | + const transaction = window._indexedDB[db].transaction(tableName, 'readwrite'); |
| 130 | + const objectStore = transaction.objectStore(tableName); |
| 131 | + const request = objectStore.put(data); |
| 132 | + request.onsuccess = () => { |
| 133 | + resolve(true); |
| 134 | + }; |
| 135 | + request.onerror = () => { |
| 136 | + reject(false); |
| 137 | + }; |
| 138 | + }); |
| 139 | +}; |
| 140 | + |
| 141 | +// 关闭数据库 |
| 142 | +export const closeDB = (db: DBType) => { |
| 143 | + return new Promise((resolve) => { |
| 144 | + window._indexedDB[db].close(); |
| 145 | + resolve(true); |
| 146 | + }); |
| 147 | +}; |
| 148 | + |
| 149 | +export default { |
| 150 | + createDB, |
| 151 | + addData, |
| 152 | + deleteDataByIndex, |
| 153 | + deleteData, |
| 154 | + getDataByIndex, |
| 155 | + getDataByCursor, |
| 156 | + updateData, |
| 157 | + closeDB, |
| 158 | +}; |
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