Crystal | Crystal is minimalistic PHP database toolkit
kandi X-RAY | Crystal Summary
kandi X-RAY | Crystal Summary
Crystal is minimalistic PHP database toolkit
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Top functions reviewed by kandi - BETA
- Checks if an email address is valid
- Process the rows
- Parse a string
- Set configuration options
- Assign method params
- Get validation error message
- Fetch an element
- Parse table options
- Write database query to file
- Automatic autoloader
Crystal Key Features
Crystal Examples and Code Snippets
Community Discussions
Trending Discussions on Crystal
QUESTION
I am using Django to make an API request for current standings in a league table. I would like to display this data as a table in HTML. Here is the code I am using in views.py to make the Python dictionary.
...ANSWER
Answered 2021-Jun-12 at 14:39Okay - an easier data structure to work with would be something like this:
QUESTION
I am trying to write a SQL query that adds a certain amount of empty columns, based on the number of rows in a related table (t1) for a Crystal Report. These columns should have the header of the name of the dataset.
So it should look something like this:
However I would need to change the script each time a new row gets added (e.g. opening a store - not very often, but it does happen).
I thought about using the pivot function, but I believe the number of rows must be defined - plus, there is no calculation / aggregation happening.
Does anybody have an idea on how to solve this?
...ANSWER
Answered 2021-Jun-11 at 11:45As Larnu already mentioned, dynamic SQL would be one way to go. I would suggest using a combination of XML PATH and dynamic SQL. Following an example:
QUESTION
I'm new to crystal reports I'm trying to change the selected tables based on user input in SAP crystal reports but when I enter a value it shows an error message, this is the code :
...ANSWER
Answered 2021-Jun-11 at 09:08Found a way to fix it, it just needed quotes:
declare @type nvarchar(30)
set @type= '{?Type}'
QUESTION
I've tried various ideas and I always come back to 2 main results that are wrong. I don't know where I'm going wrong.
...ANSWER
Answered 2021-Jun-01 at 06:10Use zip
to iterate over multiple objects at once instead of nested loops. You will get a tuple of (point, team). Also, eliminate the loop counter variable n
by using enumerate
. This makes your code more pythonic. Check out the corrected code below:
QUESTION
Working with react leaflet and a water api. I create an array of objects from the data obtained from the API, console log shows I have all the correct data, particularly at line 109 it does output the correct information. Yet, on lines 254 and 255, using obj2[1]
just gives me 'TypeError: Cannot read property 'name' of undefined.' Switching the index at those two lines back to 0 makes it compiles and run, but that's obviously not the right data. What is going on here?
ANSWER
Answered 2021-May-30 at 22:48The problem is you make the API call and this process takes time to get data from the server so the first time the obj2 is empty so when you call obj2[1].name is throwing error
The solution is to do this
QUESTION
I have got an application that needs to print reports at a distant location connected via the internet. Since there is no network printer we have to send reports generated through email and wait for someone to print them.
I was thinking if I can use windows service to automate the task
I've got the following options
get data from SQL Server base on filters transferred from distance location to generate crystal report and print it to the default printer.
get the report in pdf format from distance location & print it to the default printer
is any one of the options possible.
I'm asking for some help here since I've not created a windows service up till now for anything
Your guidance is highly applicated
Thanks a lot
Amit Saraf
...ANSWER
Answered 2021-May-26 at 12:42Yess window services generate and print the crystal report: Firstly you have install the packages from nuget but you have use VS.
Step 1: Create the Database Step 2: Create the Window Service Step 3: Install the Windows Service
Also help from this link: http://aspalliance.com/1917_Automate_delivery_of_Crystal_Reports_With_a_Windows_Service.3
QUESTION
I am using CIImage to add a number of different filter types to an image. All filters are working fine with their default values, plus the CIPixellate and CICrystallize filters are working with kCIInputScaleKey and kCIInputRadiusKey values added respectfully. Howsever I am having trouble adding values for the CILineOverlay filter. I would like to feed it a specific value for inputEdgeIntensity. The Core Image Filter Reference docs state:
inputEdgeIntensity: An NSNumber object whose attribute type is CIAttributeTypeScalar and whose display name is Edge Intensity.
Default value: 1.00
But I can't find an example anywhere of how to add this value using swift. Using this code does not work:
...ANSWER
Answered 2021-May-25 at 14:34The constant kCIInputIntensityKey
maps to "inputIntensity"
, but you want to set "inputEdgeIntensity"
. You should be able to do this like that:
QUESTION
I require the use of F# 4.5 running on the .NET Framework (not .NET Core). I would like this environment running in a docker container as it'll run periodically on our Jenkins build server. I thought that I could use the existing .NET Framework SDK Image but it only has F# for .NET Core/.NET 5.
So I attempted to install F# into the running container (should that work, I would add it to the image itself) but I am not having any luck. Here was my attempt...
Create a
project
folderDownload vs_BuildTools.exe to
project
Create a Dockerfile using the .NET Framework SDK 4.8 image
...
ANSWER
Answered 2021-May-21 at 17:29I was able to solve the issue by installing the F# Compiler Tools using paket. The F# Compiler Tools for F# 4.5 runs on .NET Framework (or or mono) unlike F# 5 which runs on .NET Core (or .NET 5).
DETAILS Create the DockerfileMy Dockerfile doesn't look too much different from before. I still base it on the Microsoft .NET Framework SDK 4.8 image as I want access to the .NET SDK.
QUESTION
I want to print current username using Crystal-lang, does anyone know how to help me?
...ANSWER
Answered 2021-May-19 at 07:37Yes this is still somewhat missing in the standard library. There's an ongoing discussion about it here: https://github.com/crystal-lang/crystal/issues/7829
Meanwhile we can quickly bind getuid(2)
or geteuid(2)
ourselves and combine it with System::User
:
QUESTION
I want to define a generic memoizing wrapper in Crystal. I have the following crystal code:
...ANSWER
Answered 2021-May-16 at 20:09You are using an unsafe feature "uninitialized
", which means, "keep whatever was there in memory previously" (in theory the value is random and possibly invalid, in practice you often end up with 0 anyway -- but it's still not guaranteed at all).
The short story about the uninitialized
feature is please never use it.
This behavior wouldn't surprise you if you wrote @val = 0
-- and that's kinda what you wrote.
You must define @val : T? = nil
-- to make it nilable (have this separate possible value of nil
, which is its own type - Nil
).
You may have thought that unitialized
brings nil
into the picture, but it definitely doesn't.
In response to your comment about also including nil
into possible values, here's a full solution, which, instead of Nil, uses a unique "sentinel" struct, that the user can never create.
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Install Crystal
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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