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Eloquent Queries 285 24 id: 4, 25 title: "North", 26 artist: "Something Corporate", 27 genre: "Piano Rock", 28 year: 2002 29 }, 30 { 31 id: 5, 32 title: "...Anywhere But Here", 33 artist: "The Ataris", 34 genre: "Punk Rock", 35 year: 1997 36 }, 37 { 38 id: 6, 39 title: "...Is A Real Boy", 40 artist: "Say Anything", 41 genre: "Indie Rock", 42 year: 2006 43 } 44 ] We receive a JSON string containing an array of objects that represent the values of our individual albums. So why are we learning about the __toString() functionality now? We aren’t intending to build a JSON API in this chapter, are we? No, were not quite ready for that yet. You see, I can use the JSON output to display the results of the queries that we will be executing throughout the rest of the chapter. It will be more readable than a bunch of foreach() loops for our result sets. Now you know exactly why these results are being outputted as JSON. Everyone’s a winner! Now that we have our database filled with dummy data, and have identified a way of displaying query results, let’s take a look at the structure of Eloquent queries. Query Structure Eloquent queries are used to retrieve results based on a number of rules or criteria. You don’t always want to retrieve all of your album rows. Sometimes you will only want to retrieve the discography for a single artist. In these circumstances we would use a query, to ask for only rows that have a title column value of the artist that we desire. Eloquent queries can be broken down into three parts.
Eloquent Queries 286 • The model. • Query Constraints • Fetch methods. The model is the model instance that we wish to perform the query upon. All of the examples within this section will be forming queries based upon the Album model. Query constraints are rules that are used to match a subset of our table rows. This way we can return only the rows that we are interested in. The most familiar constraint used with SQL is the WHERE clause. Finally, we have the fetch methods. These are the methods that are used to perform the query, and return the result. Let’s take a look at the structure of a eloquent query in its simplest form. 1
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Laravel: Code Bright Web applicatio
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Also By Dayle Rees Laravel: Code Ha
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CONTENTS Response Shortcuts . . . .
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CONTENTS Fetch Methods . . . . . .
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Errata This may be my second book a
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Translations If you would like to t
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Introduction vi The simple yet conf
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The Primers Hey this chapter wasn
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The Primers 3 1
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The Primers 5 1
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The Primers 7 1 import dayle.blog.*
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The Primers 9 1 { 2 "name": "Lushui
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The Primers 11 1 { 2 "an_object": {
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The Primers 13 Composer Composer is
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The Primers 15 their Github usernam
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The Primers 17 1 "role": "Genius" T
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The Primers 19 You can add as many
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The Primers 21 1 "require": { 2 "xm
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The Primers 23 1 "autoload": { 2 "c
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The Primers 25 1
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The Primers 27 1 php composer.phar
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The Primers 29 21 22 - Installing x
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The Primers 31 1 Loading composer r
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Architecture I want to make Code Br
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Architecture 35 1
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Architecture 37 The Facade in this
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Getting Started Laravel is a framew
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Getting Started 41 Note that the ve
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Getting Started 43 The next task wi
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Getting Started 45 43 location ~ /\
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Getting Started 47 • autoload.php
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Getting Started 49 The Application
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Basic Routing You are on a long, st
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Basic Routing 53 1
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Basic Routing 55 1 http://domain.co
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Basic Routing 57 12 { 13 return "Bo
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Responses When someone asks you a q
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Responses 61 1
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Responses 63 Redirects A Redirect i
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Responses 65 1
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Responses 67 object actually inheri
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Responses 69 1
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Filters I recall a couple of years
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Filters 73 1
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Filters 75 1
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Filters 77 1
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Filters 79 1
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Filters 81 First we need to create
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Filters 83 All of these filters rel
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Controllers 85 it would make sense
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Controllers 87 1
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Controllers 89 Here we have our Art
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Blade 91 standard view files. The o
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Blade 93 1 2 3 {{{ 'alert("CHUNKY
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Blade 95 1 2 3 c~~p ,---------. 4
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Blade 97 1 2 3 4 5 6 7 Narwhal
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Blade 99 1 @section('head') 2 3 @s
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Blade 101 11 We have a template! 12
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Blade 103 24 25 @extends('third')
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Advanced Routing Oh I see, you’re
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Advanced Routing 107 1
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URL Generation 115 1 http://myapp.d
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URL Generation 117 1
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URL Generation 119 1 http://myapp.d
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URL Generation 121 However, in some
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URL Generation 123 1 2 3 My Route
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Request Data Data, and its manipula
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Request Data 127 1 2 3 4 5 6 7
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Request Data 129 1 string(3) "bar"
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Request Data 131 1 array(2) { ["foo
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Request Data 133 1
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Request Data 135 13 var_dump(Input:
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Request Data 137 1
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Request Data 139 1
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Request Data 141 We have added the
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Request Data 143 1 application/pdf
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Request Data 145 1
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Request Data 147 The withCookie() m
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Forms It was a cold, dark night in
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Forms 151 1 2 3 4 5 Here, we use
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Forms 153 1 2 3 5 7 Great! Whil
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Forms 155 1 2 3 {{ Form::open(arra
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Forms 157 1 2 3 6 8 First Name 9
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Forms 159 Password Fields Some thin
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Forms 167 Normal Buttons When we ne
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Forms 169 1
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Forms 171 ARGH. We are all gonna di
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Validation A few months ago I was g
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Validation 175 Simple Validation Do
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Validation 177 1
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Validation 179 22 23 if ($validator
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Validation 181 17 'username' => 'mi
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Validation 183 1
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Validation 185 1 array( 2 'field' =
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Validation 193 1
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Validation 195 1
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Validation 197 We are redirected ba
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Validation 199 20 {{ Form::password
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Validation 201 1 2 3 Registration
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Validation 203 1
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Validation 205 1
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Validation 207 1
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Databases 209 As you can see, you h
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Databases 211 17 'charset' => 'utf8
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Databases 213 1 'my_connection' =>
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Databases 215 Preparing If you want
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Schema Builder 217 The second param
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Schema Builder 219 1
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Schema Builder 225 boolean Not all
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Schema Builder 229 Special Column T
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Page 262 and 263: Migrations We have a rather impress
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Page 292 and 293: Eloquent Queries In the previous ch
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Page 296 and 297: Eloquent Queries 281 Thanks to this
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Page 316 and 317: Eloquent Queries 301 In the above e
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Eloquent Collections 337 11 string
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Eloquent Collections 339 1
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Eloquent Collections 341 1 array (s
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Eloquent Collections 343 1 int 6 So
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Eloquent Relationships It was a col
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Eloquent Relationships 347 Let’s
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Eloquent Relationships 349 1 +-----
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Eloquent Relationships 351 1 +-----
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Eloquent Relationships 353 21 }); 2
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Eloquent Relationships 355 1 return
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Eloquent Relationships 357 13 $albu
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Eloquent Relationships 359 1
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Build An App 1: Playstation Game Co
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