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feat: on update current timestamp in MySQL #1174

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feat: on update current timestamp in MySQL #1174

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4e35fd8
feat: on update current ts
Oct 10, 2024
0f990bd
chore: unneeded import
Oct 10, 2024
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23 changes: 23 additions & 0 deletions src/schema/column-definition-builder.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@ import { GeneratedNode } from '../operation-node/generated-node.js'
import { DefaultValueNode } from '../operation-node/default-value-node.js'
import { parseOnModifyForeignAction } from '../parser/on-modify-action-parser.js'
import { Expression } from '../expression/expression.js'
import { RawNode } from '../operation-node/raw-node.js'

export class ColumnDefinitionBuilder implements OperationNodeSource {
readonly #node: ColumnDefinitionNode
Expand Down Expand Up @@ -239,6 +240,28 @@ export class ColumnDefinitionBuilder implements OperationNodeSource {
)
}

/**
* Adds an `ON UPDATE CURRENT_TIMESTAMP` clause to a column
*
* This clause is only supported in MySQL
*
* ### Examples
*
* ```ts
* ctx.db.schema.createTable('test')
* .addColumn('updated_at', 'datetime', (col) =>
* col.defaultTo(sql`current_timestamp`).onUpdateCurrentTimestamp(),
* )
* ```
*/
onUpdateCurrentTimestamp(): ColumnDefinitionBuilder {
return new ColumnDefinitionBuilder(
ColumnDefinitionNode.cloneWith(this.#node, {
endModifiers: [RawNode.createWithSql(`ON UPDATE CURRENT_TIMESTAMP`)],
}),
)
}

/**
* Adds a unique constraint for the column.
*
Expand Down
6 changes: 5 additions & 1 deletion test/node/src/schema.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -233,6 +233,9 @@ for (const dialect of DIALECTS) {
.addColumn('u', 'char')
.addColumn('v', 'binary(16)')
.addColumn('w', 'varbinary(16)')
.addColumn('updated_at', 'datetime', (col) =>
col.defaultTo(sql`current_timestamp`).onUpdateCurrentTimestamp(),
)

testSql(builder, dialect, {
mysql: {
Expand Down Expand Up @@ -260,7 +263,8 @@ for (const dialect of DIALECTS) {
'`t` char(4),',
'`u` char,',
'`v` binary(16),',
'`w` varbinary(16))',
'`w` varbinary(16),',
'`updated_at` datetime default current_timestamp ON UPDATE CURRENT_TIMESTAMP)',
],
parameters: [],
},
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