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dynamic loading of next rows

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This commit is contained in:
Jan Prochazka
2020-03-05 14:25:07 +01:00
parent ffe8f1027f
commit 6b3e4e7cbf
4 changed files with 99 additions and 42 deletions
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25
packages/datalib/src/TableGridDisplay.ts
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@@ -1,12 +1,7 @@
import GridDisplay from "./GridDisplay";
import {
Select,
treeToSql,
dumpSqlSelect,
createColumnResultField
} from "@dbgate/sqltree";
import { TableInfo, EngineDriver } from "@dbgate/types";
import GridConfig from "./GridConfig";
import GridDisplay from './GridDisplay';
import { Select, treeToSql, dumpSqlSelect, createColumnResultField } from '@dbgate/sqltree';
import { TableInfo, EngineDriver } from '@dbgate/types';
import GridConfig from './GridConfig';
export default class TableGridDisplay extends GridDisplay {
constructor(
@@ -16,17 +11,16 @@ export default class TableGridDisplay extends GridDisplay {
setConfig: (configh: GridConfig) => void
) {
super(config, setConfig);
this.columns = table.columns;
}
createSelect() {
const select: Select = {
commandType: "select",
commandType: 'select',
from: {
source: { name: this.table }
source: { name: this.table },
},
columns: this.table.columns.map(col =>
createColumnResultField(col.columnName)
)
columns: this.table.columns.map(col => createColumnResultField(col.columnName)),
};
return select;
}
@@ -34,8 +28,7 @@ export default class TableGridDisplay extends GridDisplay {
getPageQuery(offset: number, count: number) {
const select = this.createSelect();
if (this.driver.dialect.limitSelect) select.topRecords = count;
if (this.driver.dialect.rangeSelect)
select.range = { offset: offset, limit: count };
if (this.driver.dialect.rangeSelect) select.range = { offset: offset, limit: count };
const sql = treeToSql(this.driver, select, dumpSqlSelect);
return sql;
}