rethinkdb

问题 I am trying to append an object into an array in rethink . Here is how I am trying to append it: rethink.table('shifts') .get(shiftId) .update(row => row("milestones").default([]).append({ dateAchieved: "2017-01-01", phaseType: "TEST" })).run(rethinkConnection) The error I get is this: first_error: 'Inserted value must be an OBJECT (got ARRAY):\n[\n\t{\n\t\t"dateAchieved":\t"2017-01-01",\n\t\t"phaseType":\t"TEST"\n\t}\n]', I also tried the same code about, but removed .default([]) , which did

问题 I'm having difficulty hiding the output of clojure.tools.logging a library is using. The library is logging an error and this causes a stacktrace on stderr but it's not an error-level message for me and I can't figure out a way to hide it. I use timbre for my own application so I guess capturing the output and re-logging it as a warning or just a debug would be ideal, but for now I just need the stacktrace noise gone. I've tried rebinding err to out and then nesting the body within a with-out

问题 I'm having a rather large amount of difficulty with trying to remove nested objects from my table, without accidentally deleting all my data in the process (happened three times now, thank god I made copies). My Object: { "value1": thing, "value2": thing, "value3": thing, "roles": { "1": { "name": "Dave", "id": "1" }, "2": { "name": "Jeff", "id": "2" }, "3": { "name": "Rick", "id": "3" }, "4": { "name": "Red", "id": "4" } } }` I've tried a number of rethink queries, but none have worked thus

问题 I'm attempting to display data from my databases in RethinkDB (using the rethinkdb-elixir package from Hamiltop https://github.com/hamiltop/rethinkdb-elixir) in Phoenix. I'm relatively new to both, but I already managed to insert two tables and some data into those tables. I know this because I checked it through RethinkDB's web GUI. Now I want to display table data in an html page of my project. I've reduced the errors to one: protocol Phoenix.HTML.Safe not implemented for %RethinkDB

问题 I have the following data structure: wall { slug: "wall-slug", nodes: { "node1": "id-from-nodes-table-1", "node2": "id-from-nodes-table-2" } } nodes { id: "id-from-nodes-table-1", something: "something" } Trying to merge document from nodes table into definite node in nodes object in wall table in this way: r.db("test").table("walls").getAll("wall-slug", {index: "slug"}).map(function(row) { return row.merge({nodes: row("nodes").map(function(node) { return r.db("test").table("nodes").get(node)

问题 Say I have the following data structure: { "name": "i1", "time": 1, "status": 1} { "name": "i2", "time": 2, "status": 1} { "name": "i3", "time": 3, "status": 1} { "name": "i4", "time": 4, "status": 2} I need to retrieve the item with the largest time and "status" = 1. Then update it's "status" to 2, all this atomically, so the same item can't be retrieved by other consumer in the same time. Is this possible with rethinkdb ? 回答1: Since atomicity in RethinkDB is only guaranteed on a per

问题 I'm using RethinkDB driver for Java. I want to filter the rows without field endedAt in table jam like this: public List<Jam> getCurrent(){ Cursor cursor = r.table("jam") .filter(row -> row.hasFields("endedAt")).not() .run(conn); List<Map<String,Object>> list=cursor.toList(); return list.stream().map(item->JamRepository.toJam(item)).collect(Collectors.toList()); } And I've got this error Expected type DATUM but found SELECTION Java I have another filter function in another class: public List

问题 I've noticed something strange with compound indexes in the between function in RethinkDB. It seems to retrieve results that don't match the query. It's all detailed below. r.dbCreate('test') r.db('test').tableCreate('numbers') r.db('test').table('numbers').insert([ { first: 1, second: 1 }, { first: 1, second: 2 }, { first: 1, second: 3 }, { first: 1, second: 4 }, { first: 1, second: 5 }, { first: 2, second: 1 }, { first: 2, second: 2 }, { first: 2, second: 3 }, { first: 2, second: 4 }, {

问题 Im using rethinkdbdash with koa and trying to figure out how to perform a set up of the database when the app first starts. Im trying to accomplish something similar to Segphalt's cats of instagram tutorial but using koa. var conn; r.connect(config.database).then(function(c) { conn = c; return r.dbCreate(config.database.db).run(conn); }) .then(function() { return r.tableCreate("instacat").run(conn); }) .then(function() { return q.all([ r.table("instacat").indexCreate("time").run(conn), r

问题 I'm using PHP-RQL library to work with RethinkDB, i need to get changes when new data inserted. but i'm getting PHP Fatal error: Uncaught RqlDriverError: Options must be an array. in api documentation its says: table->changes(array('squash' => true, 'include_states' => false)) → stream singleSelection->changes(array('squash' => true, 'include_states' => false)) → stream Return an infinite stream of objects representing changes to a query. Example: Subscribe to the changes on a table. r\table(