dennii/dbgate
1
0
Fork 0
mirror of https://github.com/DeNNiiInc/dbgate.git synced 2026-04-18 19:36:00 +00:00
Code Issues Packages Projects Releases Wiki Activity

generate update script

Browse Source
This commit is contained in:
Jan Prochazka
2020-03-23 20:41:40 +01:00
parent 1560b7c2e0
commit 464662cb18
17 changed files with 281 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files

95
packages/sqltree/src/dumpSqlCommand.ts
View File

@@ -1,62 +1,111 @@
import { SqlDumper } from '@dbgate/types';
import { Command, Select } from './types';
import { Command, Select, Update, Delete, Insert } from './types';
import { dumpSqlExpression } from './dumpSqlExpression';
import { dumpSqlFromDefinition } from './dumpSqlSource';
import { dumpSqlFromDefinition, dumpSqlSourceRef } from './dumpSqlSource';
import { dumpSqlCondition } from './dumpSqlCondition';
export function dumpSqlSelect(dmp: SqlDumper, select: Select) {
export function dumpSqlSelect(dmp: SqlDumper, cmd: Select) {
dmp.put('^select ');
if (select.topRecords) {
dmp.put('^top %s ', select.topRecords);
if (cmd.topRecords) {
dmp.put('^top %s ', cmd.topRecords);
}
if (select.distinct) {
if (cmd.distinct) {
dmp.put('^distinct ');
}
if (select.selectAll) {
if (cmd.selectAll) {
dmp.put('* ');
}
if (select.columns) {
if (select.selectAll) dmp.put('&n,');
if (cmd.columns) {
if (cmd.selectAll) dmp.put('&n,');
dmp.put('&>&n');
dmp.putCollection(',&n', select.columns, fld => {
dmp.putCollection(',&n', cmd.columns, fld => {
dumpSqlExpression(dmp, fld);
if (fld.alias) dmp.put(' ^as %i', fld.alias);
});
dmp.put('&n&<');
}
dmp.put('^from ');
dumpSqlFromDefinition(dmp, select.from);
if (select.where) {
dumpSqlFromDefinition(dmp, cmd.from);
if (cmd.where) {
dmp.put('&n^where ');
dumpSqlCondition(dmp, select.where);
dumpSqlCondition(dmp, cmd.where);
dmp.put('&n');
}
if (select.groupBy) {
if (cmd.groupBy) {
dmp.put('&n^group ^by ');
dmp.putCollection(', ', select.groupBy, expr => dumpSqlExpression(dmp, expr));
dmp.putCollection(', ', cmd.groupBy, expr => dumpSqlExpression(dmp, expr));
dmp.put('&n');
}
if (select.orderBy) {
if (cmd.orderBy) {
dmp.put('&n^order ^by ');
dmp.putCollection(', ', select.orderBy, expr => {
dmp.putCollection(', ', cmd.orderBy, expr => {
dumpSqlExpression(dmp, expr);
dmp.put(' %k', expr.direction);
});
dmp.put('&n');
}
if (select.range) {
if (cmd.range) {
if (dmp.dialect.offsetFetchRangeSyntax) {
dmp.put('^offset %s ^rows ^fetch ^next %s ^rows ^only', select.range.offset, select.range.limit);
dmp.put('^offset %s ^rows ^fetch ^next %s ^rows ^only', cmd.range.offset, cmd.range.limit);
} else {
dmp.put('^limit %s ^offset %s ', select.range.limit, select.range.offset);
dmp.put('^limit %s ^offset %s ', cmd.range.limit, cmd.range.offset);
}
}
}
export function dumpSqlCommand(dmp: SqlDumper, command: Command) {
switch (command.commandType) {
export function dumpSqlUpdate(dmp: SqlDumper, cmd: Update) {
dmp.put('^update ');
dumpSqlSourceRef(dmp, cmd.from);
dmp.put('&n^set ');
dmp.put('&>');
dmp.putCollection(', ', cmd.fields, col => {
dmp.put('%i=', col.targetColumn);
dumpSqlExpression(dmp, col);
});
dmp.put('&<');
if (cmd.where) {
dmp.put('&n^where ');
dumpSqlCondition(dmp, cmd.where);
dmp.put('&n');
}
}
export function dumpSqlDelete(dmp: SqlDumper, cmd: Delete) {
dmp.put('^delete ');
dumpSqlSourceRef(dmp, cmd.from);
if (cmd.where) {
dmp.put('&n^where ');
dumpSqlCondition(dmp, cmd.where);
dmp.put('&n');
}
}
export function dumpSqlInsert(dmp: SqlDumper, cmd: Insert) {
dmp.put(
'^insert ^into %f (%,i) ^values (',
cmd.targetTable,
cmd.fields.map(x => x.targetColumn)
);
dmp.putCollection(',', cmd.fields, x => dumpSqlExpression(dmp, x));
dmp.put(')');
}
export function dumpSqlCommand(dmp: SqlDumper, cmd: Command) {
switch (cmd.commandType) {
case 'select':
dumpSqlSelect(dmp, command);
dumpSqlSelect(dmp, cmd);
break;
case 'update':
dumpSqlUpdate(dmp, cmd);
break;
case 'delete':
dumpSqlDelete(dmp, cmd);
break;
case 'insert':
dumpSqlInsert(dmp, cmd);
break;
}
}