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Preventing Laravel adding multiple records to a pivot table

...ems()->where('foreign_key', $foreignKey)->count() Which, well, actually performs an additional query too '^^ But I don't need to fetch and hydrate the whole collection unless I really need it. – Silence May 24 '15 at 13:57 ...
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How to select a single field for all documents in a MongoDB collection?

... include several fields. In the following operation, find() method returns all documents that match the query. In the result set, only the item and qty fields and, by default, the _id field return in the matching documents. db.inventory.find( { type: 'food' }, { item: 1, qty: 1 } ) In this example ...
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Git submodule update

...out the specific version of the project, but not within a branch. This is called having a detached head — it means the HEAD file points directly to a commit, not to a symbolic reference. The issue is that you generally don’t want to work in a detached head environment, because it’s easy to l...
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Script parameters in Bash

...at can make it easier to parse named arguments on the command line, but usually for simple shell scripts you should just use the easy way, if it's no problem. Then you can do: /usr/local/bin/abbyyocr9 -rl Swedish -if "$1" -of "$2" 2>&1 The double quotes around the $1 and the $2 are not al...
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Specifying colClasses in the read.csv

... the read.csv function in R. In my data, the first column "time" is basically a character vector while the rest of the columns are numeric. ...
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In Windows Azure: What are web role, worker role and VM role?

... to host the application in Windows Azure, so I created a web role. I actually want to know what these roles are for. What is their significance coding wise or storage wise? ...
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Change old commit message on Git

...situation, a git rebase -i --abort might be needed to reset everything and allow you to try again) As Dave Vogt mentions in the comments, git rebase --continue is for going to the next task in the rebasing process, after you've amended the first commit. Also, Gregg Lind mentions in his answer the r...
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C++ project organisation (with gtest, cmake and doxygen)

...rs are the basis for users to interact with what you offer and must be installed. This means they have to be in a subdirectory (no-one wants lots of headers ending up in top-level /usr/include/) and your headers must be able to include themselves with such a setup. └── prj ├── inclu...
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Git resolve conflict using --ours/--theirs for all files

Is there a way to resolve conflict for all files using checkout --ours and --theirs ? I know that you can do it for individual files but couldn't find a way to do it for all. ...
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How do HTML parses work if they're not using regexp?

... Usually by using a tokeniser. The draft HTML5 specification has an extensive algorithm for handling "real world HTML". share | ...