can someone show me how to create 2 databases with realm?
I have 2 screens. Screen "Coins" contains working code below. I want to add another realm database to the screen "Cars".
Unfortunately an error occurs:
"Realm at path '/Users/......./Documents/default.realm' already opened on current thread with different schema
//Screen "Coins"
var Realm = require('realm');
realm_coins = new Realm({
schema: [{
name: "Coins",
properties: {
coins: "int"
}
}]
})
If i add the following to the Screen "Cars", the mentioned error occurrs
//Screen "Cars"
var Realm = require('realm');
realm_cars = new Realm({
schema: [{
name: "Cars",
properties: {
name: "string"
}
}]
})
When creating your Realm instance, you pass in an array of your schema definitions:
const realm = new Realm({
schema: [{
name: "Coins",
properties: {
coins: "int"
}
}, {
name: "Cars",
properties: {
name: "string"
}
}]
});
Related
I have the following models, and many-to-many relation between them:
model User {
id String #id #default(cuid())
name String?
email String? #unique
followings Artist[]
}
model Artist {
id String #id #default(cuid())
name String #unique
spotifyId String #unique
followers User[]
}
When a user logs into my app, I retrieve their current followed artists, and need to update my database.
I have managed to select artists data from database (for updating user <-> artist relation), sample data:
const followings = [
{
id: '...',
name: 'MARINA',
spotifyId: '6CwfuxIqcltXDGjfZsMd9A'
},
{
id: '...',
name: 'Dua Lipa',
spotifyId: '6M2wZ9GZgrQXHCFfjv46we'
},
]
Now, this is my user object:
const user = {
id: 'someId',
name: 'someName',
email: 'someEmail'
}
I tried to insert or update user <-> artist relation with this query but I'm getting Bad Request error:
await prisma.user.upsert({
where: {
email: user.email
},
create: {
name: user.name,
email: user.email,
followings: {
connectOrCreate: followings
}
},
update: {
followings: {
connectOrCreate: followings
}
}
})
Please advise what I need to do. Thanks in advance.
P.S. I took the idea of the query from Updating a many-to-many relationship in Prisma post, but it didn't work for me, so please don't mark duplicate.
connectOrCreate should specify where key with id (so Prisma could find this entity) and create key with all required model fields (so Prisma could create it if it not already present), but you just passing an array of models. Change your code to this one:
await prisma.user.upsert({
where: {
email: 'user.email',
},
create: {
name: 'user.name',
email: 'user.email',
followings: {
connectOrCreate: [
{
create: {
name: 'MARINA',
spotifyId: '6CwfuxIqcltXDGjfZsMd9A',
},
where: { id: '...' },
},
],
},
},
update: {
followings: {
connectOrCreate: [
{
create: {
name: 'MARINA',
spotifyId: '6CwfuxIqcltXDGjfZsMd9A',
},
where: { id: '...' },
},
],
},
},
});
I'm using realm for Javascript using React-native
I want to generate a realm schema to hold an array of Object as this:
arrayOfObj:[{ key1:1111, key2:2222, key3:333 }]
What I have tried so far is using the mixed type in my schema
const mySchema = {
name: "mySchema",
properties: {
_id: "objectId",
arrOfObj: "mixed" //'have used mixed[] too but they all don't work
}
}
I have tried using mixed and also using mixed[] but when I try to insert the array of object i get the error: mySchema.arrOfObj must be of type 'mixed?[]', got 'object' ([object Object])].
Now, What is the correct data type for the array of object in realm?
const myScheme = {
name: "myScheme",
primaryKey: "_id",
properties: {
_id: "objectId",
_partition: "string",
name: "string",
tasks: "myData[]"
}
};
const myData = {
name: "myData",
primaryKey: "_id",
properties: {
_id: "objectId",
_partition: "string",
firstname: "string",
lastname: "string",
}
};
I'm creating tables of Realm database using React native. My function of creating table is,
const Realm = require('realm');
exports.createTables = function(tableName, pkey, structure) {
let realm = new Realm({
schema: [{name: tableName, primaryKey: pkey, properties: structure}]
});
return realm;
};
and i calling this method,
import realmDatabase from './RealmDatabase';
realmDatabase.createTables("MstUnitType", "UnitTypeId", {
"UnitTypeName" : "string",
"UnitTypeId" : "string",
} );
realmDatabase.createTables("MstTime", "TimeId", {
"TimeId" : "string",
"From" : "string",
"To" : "string",
} );
realmDatabase.createTables("MstQuestions", "QuestionId", {
"QuestionId" : "string",
"Question" : "string",
} );
I got only MstUnitType table in defualt.realm file other 2 table not created while i run above 3 create table methods one by one.
Yes i found solution of above. Following way we can create multiple tables at a time,
var Realm = require('realm');
const CarSchema = {
name: 'Car',
properties: {
make: 'string',
model: 'string',
miles: {type: 'int', default: 0},
}
};
const PersonSchema = {
name: 'Person',
properties: {
name: 'string',
birthday: 'date',
cars: {type: 'list', objectType: 'Car'},
picture: {type: 'data', optional: true}, // optional property
}
};
// Initialize a Realm with Car and Person models
let realm = new Realm({schema: [CarSchema, PersonSchema]});
I new to learn dojo and trying to learn by it using samples code.
Using dojo 1.6
With help of sample codes , I created a tree
now i want to apply sorting on root and also on child.
With the help of this sample code , i changed the code
Output is not sorted n but the root folder has changed their position and child is deleted.
Plz help me to resolve this.
My code :
dojo.require("dojo.data.ItemFileWriteStore");
dojo.require("dojo.data.ItemFileReadStore");
dojo.require("dijit.tree.ForestStoreModel");
dojo.require("dijit.Tree");
var data = [ { id: 1, name: "answerTypeLabel", type:'scenario', children:[{_reference: 2}]},
{ id: 2, name: "acceptRequestLabel", type:'paragraph', data: "acceptRequestLabel"},
{ id: 3, name: "rejectRequestLabel", type:'scenario', children:[{_reference: 5},{_reference: 6}]},
{ id: 4, name: "MoreInformationLabel", type:'scenario', children:[{_reference: 7},{_reference: 8}]},
{ id: 5, name: "rejectRequestStatusLabel", type:'paragraph', data: "rejectRequestStatusLabel"},
{ id: 6, name: "rejectRequestNotCoveredLabel", type:'paragraph', data: "rejectRequestNotCoveredLabel" },
{ id: 7, name: "MoreInformationDocumentLabel", type:'paragraph', data: "MoreInformationDocumentLabel"},
{ id: 8, name: "MoreInformationDataLabel", type:'paragraph', data: "MoreInformationDataLabel"}
];
dojo.addOnLoad(function() {
var sortableStore = new dojo.data.ItemFileReadStore({
data: {
identifier: 'id',
label: 'name',
items: data
}
});
var model = new dijit.tree.ForestStoreModel({
rootLabel: 'Names',
store: new dojo.data.ItemFileWriteStore({
data: {
identifier: 'id',
items: [],
label: 'name'
}
}) // blank itemsstore
})
var tree = new dijit.Tree({
model: model,
updateItems: function(items) {
var self = this;
console.log('pre', this.model.root.children);
dojo.forEach(items, function(newItem) {
console.log('add', newItem);
try {
self.model.store.newItem({
id: sortableStore.getValue(newItem, 'id'),
name: sortableStore.getValue(newItem, 'name'),
type: sortableStore.getValue(newItem, 'type'),
data: sortableStore.getValue(newItem, 'data'),
});
} catch (e) {
console.log(e);
}
});
console.log('post', this.model.root.children);
console.log("children: ", this.rootNode.getChildren());
},
});
tree.placeAt(dojo.body());
sortableStore.fetch({
query: {
type:'scenario'
},
sort: [{
attribute: "name"}],
onComplete: function(items) {
console.log(items, 'sorted');
tree.updateItems(items);
}
})
});
Output :
The 'Names' origins from you setting 'rootLabel'.
Btw, fiddles have revisions and is simply a paste-bin like feature :)
You need to use the tree model pasteItem to insert referenced items (the 'children' property of each 'newItem').
Otherwise, there's another approach, if you get rid of the '_reference' structure of your data. See: http://jsfiddle.net/GHFdA/1/
I have created classes
dojo.declare("UNIT",null,{
_id:'',
constructor:function(i){
this._id=i;
});
and
dojo.declare("ELEMENT", null, {
_id:'',
_unit_id:'',
constructor:function(u,i){
this._unit_id=u;
this._id=i;
});
I have array of Units and I want find one which have id like my element._unit_id. Hot to do this with Dojo ? I was looking in documentation examples but there is dojo.filter by I cannot pass argument . Can anybody help ?
You can use dojo.filter.E.g:
var units = [{
id: 1,
name: "aaaa"
},
{
id: 2,
name: "bbbb"
},
{
id: "2",
name: "cccc"
},
{
id: "3",
name: "dddd"
}];
var currentElementId = 2;
var filteredArr = dojo.filter(units, function(item) {
return item.id==currentElementId;
});
// do something with filtered array
}
Test page for you