758 lines
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758 lines
20 KiB
HTML
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<title>Getting Started with GORM · GORM Guide</title>
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<div class="book"
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data-level="0"
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data-chapter-title="Getting Started with GORM"
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data-filepath="README.md"
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data-basepath="."
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data-revision="Wed Mar 09 2016 20:51:24 GMT+0800 (CST)"
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<a href="./">
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Getting Started with GORM
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</a>
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</li>
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<li class="chapter " data-level="1" data-path="database.html">
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<a href="database.html">
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<b>1.</b>
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Database
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</a>
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<ul class="articles">
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<li class="chapter " data-level="1.1" data-path="database.html">
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<a href="database.html#connecting-to-a-database">
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<b>1.1.</b>
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Database Connection
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</a>
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</li>
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<li class="chapter " data-level="1.2" data-path="database.html">
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<a href="database.html#migration">
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<b>1.2.</b>
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Migration
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="2" data-path="models.html">
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<a href="models.html">
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<b>2.</b>
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Models
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</a>
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<ul class="articles">
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<li class="chapter " data-level="2.1" data-path="models.html">
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<a href="models.html#model-definition">
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<b>2.1.</b>
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Model Definition
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</a>
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</li>
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<li class="chapter " data-level="2.2" data-path="models.html">
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<a href="models.html#conventions">
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<b>2.2.</b>
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Conventions & Overriding
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</a>
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</li>
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<li class="chapter " data-level="2.3" data-path="associations.html">
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<a href="associations.html">
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<b>2.3.</b>
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Associations
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</a>
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<ul class="articles">
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<li class="chapter " data-level="2.3.1" data-path="associations.html">
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<a href="associations.html#belongs-to">
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<b>2.3.1.</b>
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Belongs To
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</a>
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</li>
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<li class="chapter " data-level="2.3.2" data-path="associations.html">
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<a href="associations.html#has-one">
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<b>2.3.2.</b>
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Has One
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</a>
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</li>
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<li class="chapter " data-level="2.3.3" data-path="associations.html">
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<a href="associations.html#has-many">
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<b>2.3.3.</b>
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Has Many
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</a>
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</li>
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<li class="chapter " data-level="2.3.4" data-path="associations.html">
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<a href="associations.html#many-to-many">
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<b>2.3.4.</b>
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Many To Many
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</a>
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</li>
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<li class="chapter " data-level="2.3.5" data-path="associations.html">
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<a href="associations.html#polymorphism">
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<b>2.3.5.</b>
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Polymorphism
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</a>
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</li>
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<li class="chapter " data-level="2.3.6" data-path="associations.html">
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<a href="associations.html#association-mode">
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<b>2.3.6.</b>
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Association Mode
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</a>
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</li>
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</ul>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="3" data-path="curd.html">
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<a href="curd.html">
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<b>3.</b>
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CRUD: Reading and Writing Data
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</a>
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<ul class="articles">
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<li class="chapter " data-level="3.1" data-path="curd.html">
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<a href="curd.html#create">
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<b>3.1.</b>
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Create
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</a>
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</li>
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<li class="chapter " data-level="3.2" data-path="curd.html">
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<a href="curd.html#query">
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<b>3.2.</b>
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Query
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</a>
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</li>
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<li class="chapter " data-level="3.3" data-path="curd.html">
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<a href="curd.html#preloading-eager-loading">
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<b>3.3.</b>
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Preloading (Eager Loading)
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</a>
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</li>
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<li class="chapter " data-level="3.4" data-path="curd.html">
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<a href="curd.html#update">
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<b>3.4.</b>
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Update
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</a>
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</li>
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<li class="chapter " data-level="3.5" data-path="curd.html">
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<a href="curd.html#delete">
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<b>3.5.</b>
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Delete / Soft Delete
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="4" data-path="callbacks.html">
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<a href="callbacks.html">
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<b>4.</b>
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Callbacks
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</a>
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</li>
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<li class="chapter " data-level="5" data-path="advanced.html">
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<a href="advanced.html">
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<b>5.</b>
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Advanced Usage
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</a>
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<ul class="articles">
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<li class="chapter " data-level="5.1" data-path="advanced.html">
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<a href="advanced.html#error-handling">
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<b>5.1.</b>
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Error Handling
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</a>
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</li>
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<li class="chapter " data-level="5.2" data-path="advanced.html">
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<a href="advanced.html#transactions">
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<b>5.2.</b>
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Transactions
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</a>
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</li>
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<li class="chapter " data-level="5.3" data-path="advanced.html">
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<a href="advanced.html#sql-builder">
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<b>5.3.</b>
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Raw SQL & SQL Builder
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</a>
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</li>
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<li class="chapter " data-level="5.4" data-path="advanced.html">
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<a href="advanced.html#generic-database-interface-sqldb">
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<b>5.4.</b>
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Generic database interface sql.DB
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</a>
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</li>
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<li class="chapter " data-level="5.5" data-path="advanced.html">
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<a href="advanced.html#compose-primary-key">
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<b>5.5.</b>
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Composite Primary Key
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</a>
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</li>
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<li class="chapter " data-level="5.6" data-path="advanced.html">
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<a href="advanced.html#logger">
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<b>5.6.</b>
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Overriding Logger
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="6" data-path="development.html">
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<a href="development.html">
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<b>6.</b>
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Development
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</a>
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<ul class="articles">
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<li class="chapter " data-level="6.1" data-path="development.html">
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<a href="development.html#architecture">
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<b>6.1.</b>
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Architecture
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</a>
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</li>
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<li class="chapter " data-level="6.2" data-path="development.html">
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<a href="development.html#write-plugins">
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<b>6.2.</b>
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Write Plugins
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</a>
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</li>
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</ul>
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</li>
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<li class="chapter " data-level="7" data-path="changelog.html">
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<a href="changelog.html">
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<b>7.</b>
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Change Log
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</a>
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</li>
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<li class="divider"></li>
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</ul>
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</nav>
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</div>
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<div class="book-body">
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<div class="body-inner">
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<div class="book-header" role="navigation">
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<!-- Title -->
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<h1>
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<i class="fa fa-circle-o-notch fa-spin"></i>
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<a href="." >Getting Started with GORM</a>
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</h1>
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</div>
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<div class="page-wrapper" tabindex="-1" role="main">
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<div class="page-inner">
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<section class="normal markdown-section">
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<h1 id="gorm">GORM</h1>
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<p>The fantastic ORM library for Golang, aims to be developer friendly.</p>
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<p><a href="https://gitter.im/jinzhu/gorm?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge" target="_blank"><img src="https:/badges.gitter.im/Join%20Chat.svg" alt="Join the chat at https://gitter.im/jinzhu/gorm"></a>
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<a href="https://app.wercker.com/project/bykey/0cb7bb1039e21b74f8274941428e0921" target="_blank"><img src="https:/app.wercker.com/status/0cb7bb1039e21b74f8274941428e0921/s/master" alt="wercker status" title="wercker status"></a>
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<a href="https://godoc.org/github.com/jinzhu/gorm" target="_blank"><img src="https:/godoc.org/github.com/jinzhu/gorm?status.svg" alt="GoDoc"></a></p>
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<h2 id="overview">Overview</h2>
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<ul>
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<li>Full-Featured ORM (almost)</li>
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<li>Associations (Has One, Has Many, Belongs To, Many To Many, Polymorphism)</li>
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<li>Callbacks (Before/After Create/Save/Update/Delete/Find)</li>
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<li>Preloading (eager loading)</li>
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<li>Transactions</li>
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<li>Composite Primary Key</li>
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<li>SQL Builder</li>
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<li>Auto Migrations</li>
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<li>Logger</li>
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<li>Extendable, write Plugins based on GORM callbacks</li>
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<li>Every feature comes with tests</li>
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<li>Developer Friendly</li>
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</ul>
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<h2 id="install">Install</h2>
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<pre><code class="lang-sh">go get -u github.com/jinzhu/gorm
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</code></pre>
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<h2 id="upgrading-to-v10">Upgrading To V1.0</h2>
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<ul>
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<li><a href="changelog.html">CHANGELOG</a></li>
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</ul>
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<h2 id="quick-start">Quick Start</h2>
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<pre><code class="lang-go"><span class="hljs-keyword">package</span> main
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<span class="hljs-keyword">import</span> (
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<span class="hljs-string">"github.com/jinzhu/gorm"</span>
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_ <span class="hljs-string">"github.com/jinzhu/gorm/dialects/sqlite"</span>
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)
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<span class="hljs-keyword">type</span> Product <span class="hljs-keyword">struct</span> {
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gorm.Model
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Code <span class="hljs-keyword">string</span>
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Price <span class="hljs-keyword">uint</span>
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}
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<span class="hljs-keyword">func</span> main() {
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db, err := gorm.Open(<span class="hljs-string">"sqlite3"</span>, <span class="hljs-string">"test.db"</span>)
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<span class="hljs-keyword">if</span> err != <span class="hljs-literal">nil</span> {
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<span class="hljs-built_in">panic</span>(<span class="hljs-string">"failed to connect database"</span>)
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}
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<span class="hljs-comment">// Create</span>
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db.Create(&Product{Code: <span class="hljs-string">"L1212"</span>, Price: <span class="hljs-number">1000</span>})
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<span class="hljs-comment">// Read</span>
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<span class="hljs-keyword">var</span> product Product
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db.First(&product, <span class="hljs-number">1</span>) <span class="hljs-comment">// find product with id 1</span>
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db.First(&product, <span class="hljs-string">"code = ?"</span>, <span class="hljs-string">"L1212"</span>) <span class="hljs-comment">// find product with code l1212</span>
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<span class="hljs-comment">// Update - update product's price to 2000</span>
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db.Model(&product).Update(<span class="hljs-string">"Price"</span>, <span class="hljs-number">2000</span>)
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<span class="hljs-comment">// Delete - delete product</span>
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db.Delete(&product)
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}
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</code></pre>
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<h1 id="author">Author</h1>
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<p><strong>jinzhu</strong></p>
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<ul>
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