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Implement pointer types in postgres. (#2086)

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* Support pointers in postgres

* implement count

* Fix bug in createClass
This commit is contained in:
Drew
2016-06-17 11:09:42 -07:00
committed by GitHub
parent ab06055369
commit 006540cda5
6 changed files with 37 additions and 17 deletions
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21
src/Adapters/Storage/Postgres/PostgresStorageAdapter.js
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@@ -133,6 +133,7 @@ export class PostgresStorageAdapter {
}
})
.then(() => this._client.query('INSERT INTO "_SCHEMA" ("className", "schema", "isParseClass") VALUES ($<className>, $<schema>, true)', { className, schema }))
.then(() => schema);
}
addFieldIfNotExists(className, fieldName, type) {
@@ -212,7 +213,7 @@ export class PostgresStorageAdapter {
// rejection reason are TBD.
getAllClasses() {
return this._ensureSchemaCollectionExists()
.then(() => this._client.map('SELECT * FROM "_SCHEMA"'), null, row => ({ className: row.className, ...row.schema }));
.then(() => this._client.map('SELECT * FROM "_SCHEMA"', null, row => ({ className: row.className, ...row.schema })));
}
// Return a promise for the schema with the given name, in Parse format. If
@@ -329,6 +330,10 @@ export class PostgresStorageAdapter {
updatePatterns.push(`$${index}:name = $${index + 1}`);
values.push(fieldName, fieldValue);
index += 2;
} else if (fieldValue.__type === 'Pointer') {
updatePatterns.push(`$${index}:name = $${index + 1}`);
values.push(fieldName, fieldValue.objectId);
index += 2;
} else {
return Promise.reject(new Parse.Error(Parse.Error.OPERATION_FORBIDDEN, `Postgres doesn't support update ${JSON.stringify(fieldValue)} yet`));
}
@@ -352,7 +357,10 @@ export class PostgresStorageAdapter {
let where = buildWhereClause({ schema, query, index: 2 })
values.push(...where.values);
const qs = `SELECT * FROM $1:name WHERE ${where.pattern} ${limit !== undefined ? `LIMIT $${values.length + 1}` : ''}`;
const wherePattern = where.pattern.length > 0 ? `WHERE ${where.pattern}` : '';
const limitPattern = limit !== undefined ? `LIMIT $${values.length + 1}` : '';
const qs = `SELECT * FROM $1:name ${wherePattern} ${limitPattern}`;
if (limit !== undefined) {
values.push(limit);
}
@@ -408,7 +416,14 @@ export class PostgresStorageAdapter {
// Executes a count.
count(className, schema, query) {
return Promise.reject('Not implemented yet.')
let values = [className];
let where = buildWhereClause({ schema, query, index: 2 });
values.push(...where.values);
const wherePattern = where.pattern.length > 0 ? `WHERE ${where.pattern}` : '';
const qs = `SELECT COUNT(*) FROM $1:name ${wherePattern}`;
return this._client.query(qs, values)
.then(result => parseInt(result[0].count))
}
}