NanoStoreInMotion | RubyMotion wrapper | Database library

by siuying Ruby Version: Current License: Non-SPDX

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kandi X-RAY | NanoStoreInMotion Summary

NanoStoreInMotion is a Ruby library typically used in Database applications. NanoStoreInMotion has no bugs, it has no vulnerabilities and it has low support. However NanoStoreInMotion has a Non-SPDX License. You can download it from GitHub.

RubyMotion wrapper for NanoStore, a lightweight schema-less key-value document database based on sqlite.

Support

Quality

Security

License

Reuse

kandi-support Support

NanoStoreInMotion has a low active ecosystem.
It has 106 star(s) with 26 fork(s). There are 6 watchers for this library.
It had no major release in the last 12 months.
There are 2 open issues and 26 have been closed. On average issues are closed in 28 days. There are no pull requests.
It has a neutral sentiment in the developer community.
The latest version of NanoStoreInMotion is current.

NanoStoreInMotion Support

Best in #Database

Average in #Database

NanoStoreInMotion Support

Best in #Database

Average in #Database

quality kandi Quality

NanoStoreInMotion has 0 bugs and 0 code smells.

NanoStoreInMotion Quality

Best in #Database

Average in #Database

NanoStoreInMotion Quality

Best in #Database

Average in #Database

security Security

NanoStoreInMotion has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
NanoStoreInMotion code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

NanoStoreInMotion Security

Best in #Database

Average in #Database

NanoStoreInMotion Security

Best in #Database

Average in #Database

license License

NanoStoreInMotion has a Non-SPDX License.
Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

NanoStoreInMotion License

Best in #Database

Average in #Database

NanoStoreInMotion License

Best in #Database

Average in #Database

build Reuse

NanoStoreInMotion releases are not available. You will need to build from source code and install.
Installation instructions, examples and code snippets are available.
NanoStoreInMotion saves you 14118 person hours of effort in developing the same functionality from scratch.
It has 28281 lines of code, 62 functions and 59 files.
It has medium code complexity. Code complexity directly impacts maintainability of the code.

NanoStoreInMotion Reuse

Best in #Database

Average in #Database

NanoStoreInMotion Reuse

Best in #Database

Average in #Database

Top functions reviewed by kandi - BETA

kandi has reviewed NanoStoreInMotion and discovered the below as its top functions. This is intended to give you an instant insight into NanoStoreInMotion implemented functionality, and help decide if they suit your requirements.

Find all the keys in the query .
Find and find the query .
Creates a new class instance
Creates a new criterion for the given options .
Returns all objects that match the specified object .
Defines an attribute with an attribute
Creates a new instance .
Remove an item from an object .
Find the key in the store .
Initialize an object

NanoStoreInMotion Key Features

RubyMotion wrapper for NanoStore, a lightweight schema-less key-value document database based on sqlite.

NanoStoreInMotion Examples and Code Snippets

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Installation

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gem install motion-cocoapods
pod setup

Set default storage type

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# memory only db
NanoStore.shared_store = NanoStore.store(:memory)

# file based db
documents_path         = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, true)[0]
NanoStore.shared_store = NanoStore.store(:file, documents_path + "/nano.db")

Define Model

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class User &lt; NanoStore::Model
  attribute :name
  attribute :age
  attribute :created_at
end

Create

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# Initialize a new object and save it
user = User.new(:name =&gt; "Bob", :age =&gt; 16, :created_at =&gt; Time.now)
user.save
user.key # =&gt; "550e8400-e29b-41d4-a716-446655440000" (automatically generated UUID)

# Create a new object directly
user = User.create(:name =&gt; "Bob", :age =&gt; 16, :created_at =&gt; Time.now)

Retrieve

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# find all models
User.all # =&gt; [&lt;User#1&gt;, &lt;User#2&gt;]

# find model by criteria
users = User.find(:name, NSFEqualTo, "Bob")

# or use Hash
users = User.find(:name =&gt; "Bob")
users = User.find(:name =&gt; { NSFEqualTo =&gt; "Ronald" })
users = User.find(:name =&gt; { NSFEqualTo =&gt; "Ronald" }, :age =&gt; { NSFGreaterThan =&gt; 50 })

# or use Array for matching multiple values
users = User.find(:name =&gt; ["Bob", "Ronald", "Ken"])

# Optionally sort the result with additional hash parameters
users = User.find({:age =&gt; { NSFGreaterThan =&gt; 10 }}, {:sort =&gt; {:age =&gt; :desc}})

Update

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user = User.find(:name, NSFEqualTo, "Bob").first
user.name = "Dom"
user.save

Delete

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user = User.find(:name, NSFEqualTo, "Bob").first
user.delete

# Bulk delete
User.delete(:age =&gt; {NSFGreaterThan =&gt; 20})

Using Transaction

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store = NanoStore.shared_store = NanoStore.store

begin
  store.transaction do |the_store|
    Animal.count # =&gt; 0
    obj1 = Animal.new
    obj1.name = "Cat"
    obj1.save
      
    obj2 = Animal.new
    obj2.name = "Dog"
    obj2.save
    Animal.count # =&gt; 2
    raise "error"  # =&gt; an error happened!
  end
rescue
  # error handling
end

Animal.count # =&gt; 0

Using Bags

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store = NanoStore.store
bag = Bag.bag
store &lt;&lt; bag

# add subclass of NanoStore::Model object to bag
page = Page.new
page.text = "Hello"
page.index = 1
bag &lt;&lt; page 
    
# save the bag
bag.save
  
# obtain the bags from document store
bags = store.bags

Association

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class User &lt; NanoStore::Model
  attribute :name
  attribute :age
  attribute :created_at
  bag :cars
end

class Car &lt; NanoStore::Model
  attribute :name
  attribute :age
end

user = User.new(:name =&gt; "Peter", :age =&gt; 20, :created_at =&gt; Time.now)
user.cars &lt;&lt; Car.new(:name =&gt; "Mini", :age =&gt; 0)
user.save

user.cars # =&gt; #&lt;NanoStore::Bag:0x7411410&gt;

KVO

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class Radio &lt; NanoStore::Model
  attribute :name
end

radio = Radio.new
radio.addObserver(observer, forKeyPath:"name", options: NSKeyValueObservingOptionNew, context: nil)

Example

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# Create a store
store = NanoStore.shared_store = NanoStore.store
    
# Increase the save interval
store.save_interval = 1000

# Do a bunch of inserts and/or edits
obj1 = Animal.new
obj1.name = "Cat"
store &lt;&lt; obj1

obj2 = Animal.new
obj2.name = "Dog"
store &lt;&lt; obj2

# Don't forget that some objects could be lingering in memory. Force a save.
store.save

See all related Code Snippets

Community Discussions

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Trending Discussions on Database

QUESTION

How to create or alter a DB schema dynamically (at run time) using Gramex FormHandler

Asked 2022-Apr-08 at 06:35

I want to be able to (at run time) create or alter a DB schema dynamically on a particular event (e.g. click of a button) using FormHandler microservice of Gramex.

ANSWER

Answered 2022-Apr-08 at 06:20

You can do it using queryfunction of FormHandler which can modify the query based on the query parameters passed in the url.

Refer the link below for more https://gramener.com/gramex/guide/formhandler/#formhandler-queryfunction

Source https://stackoverflow.com/questions/71792397

QUESTION

MongoDB query all documents contains ids that does not exist anymore in the collection

Asked 2022-Mar-02 at 03:10

I ran into an issue that I haven't found a solution to yet. I have a collection with dozens of documents that every one of the documents contains a list (let's use the name 'list' as a key for that list) with ids of other documents(they are connected in some way).

some of the documents in the collection were deleted and I try to find all the documents that contain the ids of documents that do not exist anymore in the collection.

example:

As to the example above: I want to get the document with the id : 5e3266e9bd724a000107a902 because it contains a list with the id 5e32a7f7bd724a00012c1104 that does not exist anymore.

ANSWER

Answered 2022-Mar-02 at 03:10

Here is a solution that works exploiting $lookup on the same collection (think "self-JOIN"):

var r = [
    {_id: 0, aa: [ 10, 11, 12 ] }
    ,{_id: 1, aa: [ 10, 11, 12 ] }
    ,{_id: 2, aa: [ 20, 21, 22 ] }  // 21 is on watch list...
    ,{_id: 3, aa: [ 21, 20, 12 ] }  // this one too and 21 is in different position
    ,{_id: 4, aa: [ 10, 22, 12 ] }  
    ,{_id: 5, aa: [ 10, 22, 23 ] }  // this one too...
    ,{_id: 6, aa: [ 10, 22, 21, 23 ] }  // this one has BOTH 21 and 23

    ,{_id: 10, X:10}
    ,{_id: 11, X:11}
    ,{_id: 12, X:12}
    ,{_id: 20, X:20}
    ,{_id: 21, X:21}
    ,{_id: 22, X:22}
    ,{_id: 23, X:23}
];

db.foo.insert(r);

// Here is the whole thing:                                                                    
db.foo.aggregate([ ]);

// Delete _id 21 and 23:                                                                            
db.foo.remove({_id: 21});
db.foo.remove({_id: 23});

// Double check:                                                                               
c = db.foo.aggregate([ ]);
                                                                                 

// Where does id 21 and/or 23 NOT exist anymore?  Note we don't ask for 21 or 23.
// We just know we expect a query to return docs that indicate 21 and/or 23
// are no longer there:                                                       
c = db.foo.aggregate([
    // NOTE!  By using localField:'aa', we are asking for EACH element in the
    // array to be used as a value to match to _id (in the same collection):
    {$lookup: {from: 'foo', localField: 'aa', foreignField: '_id', as: 'X'}},

    // Exploit "make a list of scalars from array of objects" notation by taking
    // input array $X and taking the _id field out:
    {$project: {X: {$setDifference: ["$aa", "$X._id"] }} },

    // Keep those that match -- and protect against against empty sets
    // with $ifNull to turn a null into an array of len 0:
    {$match: {$expr: {$gt:[{$size: {$ifNull:['$X',[]]}}, 0]}} }
]);

{ "_id" : 2, "X" : [ 21 ] }
{ "_id" : 3, "X" : [ 21 ] }
{ "_id" : 5, "X" : [ 23 ] }
{ "_id" : 6, "X" : [ 21, 23 ] }

Source https://stackoverflow.com/questions/71313345

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install NanoStoreInMotion

Install the CocoaPods dependency manager if you haven't it already:. Require nano-store to your project 'Rakefile'. Now, you can use NanoStore in your app.
If you are upgrading from an older version of nano-store gem, make sure you run rake clean and remove vendor/Pods/build* folders before building your project. Otherwise you may still using the old binaries!.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .