Send JavaScript » History » Version 2
Tomek Dziemidowicz, 2019-07-18 09:09 PM
| 1 | 1 | Tomek Dziemidowicz | h1. Send JavaScript |
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| 2 | |||
| 3 | <pre><code class="javascript"> |
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| 4 | 2 | Tomek Dziemidowicz | function sqlitesync_SyncSendData() { |
| 5 | sqlitesync_AddLog('<b>Starting sending data</b>'); |
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| 6 | 1 | Tomek Dziemidowicz | |
| 7 | 2 | Tomek Dziemidowicz | sqlitesync_SyncGlobalTableIndex = 0; |
| 8 | sqlitesync_SyncDataToSend = "<?xml version=\"1.0\" encoding=\"utf-8\"?><SyncData xmlns=\"urn:sync-schema\">"; |
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| 9 | sqlitesync_SyncSendTable(sqlitesync_SyncGlobalTableIndex); |
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| 10 | } |
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| 11 | 1 | Tomek Dziemidowicz | |
| 12 | 2 | Tomek Dziemidowicz | function sqlitesync_SyncSendTable(tableIndex) { |
| 13 | var selectAllStatement = "select * from sqlite_master where type='table' and sql like '%RowId%'"; |
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| 14 | sqlitesync_DB.transaction(function (tx) { |
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| 15 | tx.executeSql(selectAllStatement, [], function (tx, result) { |
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| 16 | var datasetTables = result.rows; |
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| 17 | var item = datasetTables.item(tableIndex); |
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| 18 | if (item['tbl_name'] != "MergeDelete") { |
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| 19 | |||
| 20 | sqlitesync_SyncDataToSend += "<tab n=\"" + item['tbl_name'] + "\">"; |
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| 21 | |||
| 22 | var columnParts = datasetTables.item(tableIndex).sql.replace(/^[^\(]+\(([^\)]+)\)/g, '$1').split(','); |
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| 23 | var columnNames = []; |
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| 24 | for (var col in columnParts) { |
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| 25 | if (typeof columnParts[col] === 'string') |
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| 26 | columnNames.push(columnParts[col].split(" ")[0]); |
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| 27 | } |
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| 28 | |||
| 29 | /*** nowe rekordy***/ |
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| 30 | var selectForTable = "select * from " + item['tbl_name'] + " where RowId is null"; |
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| 31 | var tableName = item['tbl_name']; |
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| 32 | tx.executeSql(selectForTable, [], function (tx, result) { |
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| 33 | var datasetTable = result.rows; |
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| 34 | |||
| 35 | if (datasetTable.length > 0){ |
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| 36 | sqlitesync_AddLog('Sending a new records for the table: ' + item['tbl_name'] + ''); |
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| 37 | } |
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| 38 | sqlitesync_SyncDataToSend += "<ins>"; |
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| 39 | for (var i = 0, row = null; i < datasetTable.length; i++) { |
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| 40 | row = datasetTable.item(i); |
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| 41 | sqlitesync_SyncDataToSend += "<r>"; |
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| 42 | for (var j = 0; j < columnNames.length; j++) { |
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| 43 | if (columnNames[j].replace(/"/gi, '') != 'MergeUpdate') { |
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| 44 | sqlitesync_SyncDataToSend += "<" + columnNames[j].replace(/"/gi, '') + ">"; |
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| 45 | sqlitesync_SyncDataToSend += "<![CDATA[" + row[columnNames[j].replace(/"/gi, '')] + "]]>"; |
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| 46 | sqlitesync_SyncDataToSend += "</" + columnNames[j].replace(/"/gi, '') + ">"; |
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| 47 | } |
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| 48 | } |
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| 49 | sqlitesync_SyncDataToSend += "</r>"; |
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| 50 | } |
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| 51 | sqlitesync_SyncDataToSend += "</ins>"; |
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| 52 | /*** zakutalizowane rekordy***/ |
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| 53 | var selectForUpdateTable = "select * from " + item['tbl_name'] + " where MergeUpdate > 0 and RowId is not null"; |
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| 54 | tx.executeSql(selectForUpdateTable, [], function (tx, result) { |
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| 55 | datasetTable = result.rows; |
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| 56 | |||
| 57 | if (datasetTable.length > 0){ |
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| 58 | sqlitesync_AddLog('Sending updated records for the table: ' + item['tbl_name'] + ''); |
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| 59 | } |
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| 60 | |||
| 61 | sqlitesync_SyncDataToSend += "<upd>"; |
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| 62 | for (var i = 0, row = null; i < datasetTable.length; i++) { |
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| 63 | row = datasetTable.item(i); |
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| 64 | sqlitesync_SyncDataToSend += "<r>"; |
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| 65 | for (var j = 0; j < columnNames.length; j++) { |
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| 66 | if (columnNames[j].replace(/"/gi, '') != 'MergeUpdate') { |
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| 67 | sqlitesync_SyncDataToSend += "<" + columnNames[j].replace(/"/gi, '') + ">"; |
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| 68 | sqlitesync_SyncDataToSend += "<![CDATA[" + row[columnNames[j].replace(/"/gi, '')] + "]]>"; |
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| 69 | sqlitesync_SyncDataToSend += "</" + columnNames[j].replace(/"/gi, '') + ">"; |
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| 70 | } |
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| 71 | } |
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| 72 | sqlitesync_SyncDataToSend += "</r>"; |
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| 73 | } |
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| 74 | sqlitesync_SyncDataToSend += "</upd>"; |
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| 75 | sqlitesync_SyncDataToSend += "</tab>"; |
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| 76 | sqlitesync_SyncGlobalTableIndex++; |
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| 77 | if (sqlitesync_SyncGlobalTableIndex < datasetTables.length) |
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| 78 | sqlitesync_SyncSendTable(sqlitesync_SyncGlobalTableIndex); |
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| 79 | else |
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| 80 | sqlitesync_SyncSendTableDelete(tx); |
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| 81 | }); |
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| 82 | /***/ |
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| 83 | }); |
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| 84 | /***/ |
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| 85 | } |
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| 86 | else { |
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| 87 | sqlitesync_SyncGlobalTableIndex++; |
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| 88 | if (sqlitesync_SyncGlobalTableIndex < datasetTables.length) |
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| 89 | sqlitesync_SyncSendTable(sqlitesync_SyncGlobalTableIndex); |
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| 90 | else |
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| 91 | sqlitesync_SyncSendTableDelete(tx); |
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| 92 | } |
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| 93 | }); |
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| 94 | }); |
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| 95 | } |
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| 96 | |||
| 97 | /* |
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| 98 | * After synchronization, we need to clear marker for updated records to make sure that we will not send it again |
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| 99 | */ |
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| 100 | function sqlitesync_SyncClearUpdateMarker() { |
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| 101 | var selectAllStatement = "select * from sqlite_master where type='table' and sql like '%RowId%'"; |
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| 102 | sqlitesync_DB.transaction(function (tx) { |
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| 103 | tx.executeSql(selectAllStatement, [], function (tx, result) { |
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| 104 | var datasetTables = result.rows; |
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| 105 | for(var tableIndex=0; tableIndex<datasetTables.length; tableIndex++){ |
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| 106 | var item = datasetTables.item(tableIndex); |
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| 107 | if (item['tbl_name'].toString().toLowerCase() == "mergeidentity") { |
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| 108 | |||
| 109 | tx.executeSql("update MergeIdentity set MergeUpdate=0 where MergeUpdate > 0;", [],function (transaction, result) {},function (transaction, error) {console.log(error);}); |
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| 110 | } |
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| 111 | |||
| 112 | if (item['tbl_name'] != "MergeDelete" && item['tbl_name'] != "MergeIdentity") { |
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| 113 | var selectForUpdateTable = "select *, ? as syncTableName from " + item['tbl_name'] + " where MergeUpdate > 0"; |
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| 114 | tx.executeSql(selectForUpdateTable, [item['tbl_name']], function (tx, result) { |
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| 115 | if(result.rows.length > 0){ |
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| 116 | var syncTableName = result.rows.item(0)['syncTableName']; |
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| 117 | var selectTriggerStatement = "select * from sqlite_master where type='trigger' and name = 'trMergeUpdate_"+syncTableName+"'"; |
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| 118 | tx.executeSql(selectTriggerStatement, [], function (tx, result) { |
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| 119 | if(result.rows.length > 0){ |
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| 120 | var syncTableName = result.rows.item(0)['tbl_name']; |
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| 121 | var trigger = result.rows.item(0)['sql']; |
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| 122 | |||
| 123 | tx.executeSql("drop trigger trMergeUpdate_"+syncTableName+";", [],function (transaction, result) { |
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| 124 | |||
| 125 | }, |
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| 126 | function (transaction, error) { |
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| 127 | }); |
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| 128 | tx.executeSql("update " + syncTableName + " set MergeUpdate=0 where MergeUpdate > 0;", [],function (transaction, result) { |
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| 129 | |||
| 130 | }, |
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| 131 | function (transaction, error) { |
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| 132 | }); |
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| 133 | tx.executeSql(trigger, [],function (transaction, result) { |
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| 134 | |||
| 135 | }, |
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| 136 | function (transaction, error) { |
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| 137 | }); |
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| 138 | } |
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| 139 | }); |
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| 140 | } |
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| 141 | }); |
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| 142 | /***/ |
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| 143 | } |
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| 144 | } |
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| 145 | }); |
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| 146 | }); |
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| 147 | } |
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| 148 | |||
| 149 | /* |
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| 150 | * After synchronization, we need to clear marker for deleted records to make sure that we will not send it again |
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| 151 | */ |
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| 152 | function sqlitesync_SyncClearDeletedRecords() { |
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| 153 | var selectAllStatement = "delete from MergeDelete"; |
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| 154 | sqlitesync_DB.transaction(function (tx) { |
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| 155 | tx.executeSql(selectAllStatement, [], function (tx, result) { |
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| 156 | }); |
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| 157 | }); |
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| 158 | } |
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| 159 | |||
| 160 | /* |
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| 161 | * Preparing and sending records deleted on device |
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| 162 | */ |
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| 163 | function sqlitesync_SyncSendTableDelete(tx) { |
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| 164 | var selectForDelete = "select * from MergeDelete"; |
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| 165 | tx.executeSql(selectForDelete, [], function (tx, result) { |
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| 166 | datasetTable = result.rows; |
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| 167 | sqlitesync_SyncDataToSend += "<delete>"; |
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| 168 | if (datasetTable.length > 0) { |
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| 169 | sqlitesync_AddLog('Sending records for deleting'); |
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| 170 | } |
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| 171 | for (var i = 0, row = null; i < datasetTable.length; i++) { |
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| 172 | row = datasetTable.item(i); |
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| 173 | sqlitesync_SyncDataToSend += "<r>"; |
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| 174 | sqlitesync_SyncDataToSend += "<tb>" + row['TableId'] + "</tb>"; |
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| 175 | sqlitesync_SyncDataToSend += "<id>" + row['RowId'] + "</id>"; |
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| 176 | sqlitesync_SyncDataToSend += "</r>"; |
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| 177 | } |
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| 178 | sqlitesync_SyncDataToSend += "</delete>"; |
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| 179 | |||
| 180 | sqlitesync_SyncSendToServer(); |
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| 181 | }); |
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| 182 | } |
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| 183 | |||
| 184 | /* |
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| 185 | * Send packge with changes to server |
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| 186 | */ |
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| 187 | function sqlitesync_SyncSendToServer() { |
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| 188 | sqlitesync_SyncDataToSend += "</SyncData>"; |
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| 189 | |||
| 190 | $.ajax({ |
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| 191 | url: sqlitesync_SyncServerURL + "Send", |
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| 192 | method: 'POST', |
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| 193 | headers: { |
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| 194 | 'Content-Type':'application/json' |
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| 195 | }, |
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| 196 | cache : false, |
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| 197 | scope:this, |
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| 198 | data: JSON.stringify({ "subscriber" : sqlitesync_syncPdaIdent, "content": sqlitesync_SyncDataToSend , "version" : "3" }), |
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| 199 | dataType: 'json', |
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| 200 | timeout: 5 * 60 * 1000,//10min |
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| 201 | success: function (response, status) { //Success Callback |
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| 202 | |||
| 203 | sqlitesync_SyncClearUpdateMarker(); |
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| 204 | sqlitesync_SyncClearDeletedRecords(); |
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| 205 | |||
| 206 | sqlitesync_AddLog('Sending finished'); |
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| 207 | //after success we are getting changes from server |
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| 208 | sqlitesync_SyncTables(); |
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| 209 | }, |
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| 210 | failure: function (result, request) { |
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| 211 | var statusCode = result.status; |
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| 212 | var responseText = result.responseText; |
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| 213 | sqlitesync_AddLog('<p>Error while syncing with the server ' + responseText + '</p>'); |
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| 214 | } |
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| 215 | }); |
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| 216 | } |
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| 217 | |||
| 218 | 1 | Tomek Dziemidowicz | </code></pre> |