storage

What are the pros and cons of using dynamic array of records vs. TList<TMyRecord> in Delphi?

给你一囗甜甜゛ 提交于 2019-12-07 01:13:57
问题 This is a theoretical question intended to generate a look-up list of pros and cons of different data storage ways in Delphi. Let's say we have a record: type TMyRecord = record X,Y,Z: Single; IsValid: Boolean; end; Basic options of storing an array of such records are: array of TMyRecord; custom descendant of TList with getter/setter TList<TMyRecord>; I'm specifically interested about #1 vs #3 comparison, how much is the difference between those, especially performance-wise. 回答1: TList<T>

How to create laravel storage symbolic link for production or sub domain system?

亡梦爱人 提交于 2019-12-06 19:36:41
问题 When I worked on laravel local development server php artisan storage:link works fine for me. But when I transfer my site to production server then I saw my public storage link was a folder. Then I delete that tried to create a link. I got an error because my app was in the root folder and tried to solve this problem. 回答1: Another simple way is to run Executing php artisan storage:link Command Programmatically On routes/web.php Route::get('/foo', function () { Artisan::call('storage:link'); }

React Native AsyncStorage storing values other than strings

泪湿孤枕 提交于 2019-12-06 16:32:52
问题 Is there any way to store values other than strings with AsyncStorage? I want to store simple boolean values for example. AsyncStorage.setItem('key', 'ok'); Is no problem, but: AsyncStorage.setItem('key', false); Does not work.. 回答1: Based on the AsyncStorage React-native docs, I'm afraid you can only store strings.. static setItem(key: string, value: string, callback?: ?(error: ?Error) > => void) Sets value for key and calls callback on completion, along with an Error if there is any.

Storing a set of values in Delphi

一个人想着一个人 提交于 2019-12-06 16:18:34
I am trying to store a set of values in delphi, but i want to be able to address them using their name, instead of an assigned number. For example, an array of 'OldValues' would let me do OldValue[1] := InflationEdit.Text; Ideally however, i would like to have a value stored in 'Data.Inflation.OldValue' for example. For each identifier, such as Inflation, there is an OldValue, NewValue and StoredValue. There are about 12 of these identifiers. Is there some way i could store the values like this? that way i could then do something like: Data.Inflation.NewValue := Data.Inflation.OldValue; Data

Where does Internet Explorer stores its form data history that is uses for auto completion?

随声附和 提交于 2019-12-06 16:13:58
Where does Internet Explorer stores its form data history that is uses for auto completion? I need to make a tool the cleans IE form data. Is there an API for this? Or what are the registry keys? Autocomplete data is stored in the registry in two places: HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\IntelliForms\Storage1 HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\IntelliForms\Storage2 Direct manipulation is not supported. Technically, the IE7+ API to do this is: rundll32.exe inetcpl.cpl,ClearMyTracksByProcess 48 But I'm not sure this is formally supported for public

Database entries modification history

∥☆過路亽.° 提交于 2019-12-06 16:02:46
问题 I am currently working on a big management system (in PHP using Zend Framework, but that is not really revelant of the solution to this question) in which I have to manage multiple entries. Each entry has many fields and span on two tables in a 1-to-many relationship (through a single foreign key). There is roughly 50 fields in the first table and 30 fields in the second one. I am now at the stage to implement a history tracking of the different modifications made by users (and some automated

HTML5: “local storage” and “sqlite storage” Limits

筅森魡賤 提交于 2019-12-06 15:28:16
I have seen posted limits on client-side storage: LocalStorage: sizes are 5MB Sqlite storage: 5MB expandable by user request. First, are these numbers still correct? ...and how about "sessions storage" too? Secondly, are these storage schemes mutually exclusive? ... or is this limit an aggregate of all client-side storage - LocalStorage, SessionStorage, Cache (via manifest) and Sqlite data. Thanks for your help. Greg As per my knowledge that 5mb shared across local storage,session storage.If we close the browser session storage keys are removed as data saved per session. And this 5mb is per

Saving camera data to cache when launched via intent

孤人 提交于 2019-12-06 14:43:31
I am launching the Camera application via an Intent and saving the image temporarily to the SD card using the EXTRA_OUTPUT option. The URI passed needs to point to a location on external storage. I also need to provide a URI if I want the full-size image to be returned. I would like to account for the fact that the user might not have an SD card mounted. It is my understanding that due to the security measures Android imposes, the Camera application does not have write permissions to my application's cache folder. Is there any way around this via some intermediary steps? Or perhaps there is a

laravel symlink is changed when code is pushed to live site

大兔子大兔子 提交于 2019-12-06 12:46:52
I am using laravel 5.5's storage symlink to store images. When I push code to the git and pull from live site then symlink path on live site becomes same as is on my local code . My local has this symlink storage -> /home/path/to/project/app/public/ But live site expects this symlink path storage -> /var/www/html/website.com/public_html/project_code/storage/app/public/ Every time I have to delete symlink and create it again on live site. I have do these steps on live site cd public rm storage cd .. php artisan storage:link after doing these steps my symlink becomes according to live site and

Android saving data in Internal Storage NullPointerException

限于喜欢 提交于 2019-12-06 11:40:27
I have a little problem with writing a file in internal storage from my application.I'm gettin a null pointer exception,but can't find the way to fix it..and actually can't understand which one of the elements is null. Here is the code that I'm using : hash= jsonObj.getString("hash"); Log.w("CLIENT AUTH HASH","SHOW CLIENT AUTH HASH : "+hash); FileOutputStream out = context.openFileOutput("autohash",context.MODE_PRIVATE); out.write(hash.getBytes()); out.close(); The class where I'm trying to create and write this file is not an Activity , it's just some kind of helper class and that's why it's