crud

问题 I am able to get a generic notification "that there was a change to the contacts DB", but I want to know the specific record that was inserted, updated, or deleted. Following is the code that gets registered and gets the onChange notification. Unfortunately, it is not specific which makes my processing exhaustive and inefficient. Here is the code stub: if ((mNativeContactsObserver == null) && (mHandler == null)) { mHandler = new Handler(this.getMainLooper()) { }; mNativeContactsObserver = new

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I'm looking for a very simple ORM framework working on Android for SQLite. I've been testing ActiveAndroid but none of the example

问题 I need to open a Bootstrap Modal from clicking on a button in a Bootstrap navbar and other places ( to show data for a component instance, ie. providing "editing" functionality ), but I don't know how to accomplish this. Here is my code: EDIT: Code updated. ApplicationContainer = React.createClass({ render: function() { return ( <div className="container-fluid"> <NavBar /> <div className="row"> <div className="col-md-2"> <ScheduleEntryList /> </div> <div className="col-md-10"> </div> </div>

问题 Looking through the documentation for the Postgres 9.4 datatype JSONB, it is not immediately obvious to me how to do updates on JSONB columns. Documentation for JSONB types and functions: http://www.postgresql.org/docs/9.4/static/functions-json.html http://www.postgresql.org/docs/9.4/static/datatype-json.html As an examples, I have this basic table structure: CREATE TABLE test(id serial, data jsonb); Inserting is easy, as in: INSERT INTO test(data) values ('{"name": "my-name", "tags": ["tag1"

问题 I have a simple model class with 2 ManyToManyField fields like this: models.py class Folder(models.Model): user = models.ManyToManyField(User) asset = models.ManyToManyField(Asset) In my view, I know the user ID and the asset ID. Say the user ID is 1 and the asset ID is 30, how do I inject this row? I guess I don't understand how to instantiate Folder so I can save/update the row. views.py def addAssetToMyFolder(request, id=None): ''' view is simplified for brevity ''' f = Folder( user = 1,

问题 @Query is returning error when I pass more than one object in the select query. Error - Validation failed for query for method public abstract java.util.List Pojo @Entity @Table(name = "SUBJECT") public class Subject { private long id; private Long fkCode; private Long fkData; private Date assignedDate; private Data data; private Code code; //setters getters @OneToOne @JoinColumn(name="fkCode",insertable=false, updatable=false) public Code getCode() { return code; } @OneToOne @JoinColumn(name

问题 I'm getting an error while trying to delete a field from a mongo database I created in an API project I'm working on. I'm still very much new to not only RESTful APIs but also MongoDB and Express. I followed a tutorial on Youtube that explained the steps to go through to make such an API and so I did and everything worked perfectly. Now I'm trying to reproduce this API using my own custom fields. Basically my database is populated with two elements right now. I've already created get, add and

问题 I have an already existing application built on Java 5 & Struts2 MVC framework having Oracle 11g DB. Application has large number of tables which are often updated using insert queries or update statements and I am looking to develop a CRUD application and avoid any manual script execution. Number of tables are very large with dependency over each other, so I was looking for a java framework which can directly generate the code based on existing table structure, with the flexibility to allow

问题 In a small app that intercepts SMS and persists them in a local database, I'm trying to implement a find method in my DAO. this my all my CRUD code : public class CSmsReceiverDAO implements IDAO<CSmsReceived> { private SQLiteDatabase bdd; private CMaBaseSQLite cMaBaseSQLite; private static final String NOM_BDD = "sms.db"; private static final int VERSION_BDD = 1; private static final String COL_ID = "ID"; private static final int NUM_COL_ID = 0; private static final String TABLE_SMS_SENT =

问题 I'm trying to write CRUD operations using ajax. Here some code: These are my View classes: //PhotoSummary @model PhotoAlbum.WEB.Models.PhotoViewModel <div class="well"> <h3> <strong>@Model.Name</strong> <span class="pull-right label label-primary">@Model.AverageRaiting.ToString("# stars")</span> </h3> <span class="lead">@Model.Description</span> @Html.DialogFormLink("Update", Url.Action("UpdatePhoto", new {photoId = @Model.PhotoId}), "Update Photo", @Model.PhotoId.ToString(), Url.Action(