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Added support for Objective-C validation functions.
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| #ifdef __OBJC__ | ||
| #import <Foundation/Foundation.h> | ||
| #endif | ||
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| #define COUCHCOCOA_IMPL | ||
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| // | ||
| // CouchbaseCallbacks.h | ||
| // iErl14 | ||
| // | ||
| // Created by Jens Alfke on 10/3/11. | ||
| // Copyright (c) 2011 Couchbase, Inc. All rights reserved. | ||
| // | ||
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| #import <Foundation/Foundation.h> | ||
| @protocol CouchbaseValidationContext; | ||
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| typedef void (^CouchEmitBlock)(id key, id value); | ||
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| /** A "map" function called when a document is to be added to a view. | ||
| @param doc The contents of the document being analyzed. | ||
| @param emit A block to be called to add a key/value pair to the view. Your block can call zero, one or multiple times. */ | ||
| typedef void (^CouchMapBlock)(NSDictionary* doc, CouchEmitBlock emit); | ||
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| /** A "reduce" function called to summarize the results of a view. | ||
| @param keys An array of keys to be reduced. | ||
| @param values A parallel array of values to be reduced, corresponding one-to-one with the keys. | ||
| @param rereduce YES if the input keys and values are the results of previous reductions. | ||
| @return The reduced value; almost always a scalar or small fixed-size object. */ | ||
| typedef id (^CouchReduceBlock)(NSArray* keys, NSArray* values, BOOL rereduce); | ||
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| /** Called to validate a document before it's added to the database. | ||
| @param doc The submitted document contents. | ||
| @param context Lets the block access relevant information and specify an error message. | ||
| @return YES to accept the document, NO to reject it. */ | ||
| typedef BOOL (^CouchValidateUpdateBlock)(NSDictionary* doc, | ||
| id<CouchbaseValidationContext> context); | ||
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| /** Central per-process registry for native design-document functions. | ||
| Associates a key (a unique ID stored in the design doc as the "source" of the function) | ||
| with a C block. | ||
| This class is thread-safe. */ | ||
| @interface CouchbaseCallbacks : NSObject | ||
| { | ||
| NSMutableArray* _registries; | ||
| } | ||
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| + (CouchbaseCallbacks*) sharedInstance; | ||
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| - (NSString*) generateKey; | ||
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| - (void) registerMapBlock: (CouchMapBlock)block forKey: (NSString*)key; | ||
| - (void) registerReduceBlock: (CouchReduceBlock)block forKey: (NSString*)key; | ||
| - (void) registerValidateUpdateBlock: (CouchValidateUpdateBlock)block forKey: (NSString*)key; | ||
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| - (CouchMapBlock) mapBlockForKey: (NSString*)key; | ||
| - (CouchReduceBlock) reduceBlockForKey: (NSString*)key; | ||
| - (CouchValidateUpdateBlock) validateUpdateBlockForKey: (NSString*)key; | ||
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| @end | ||
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| /** Context passed into a CouchValidateUpdateBlock. */ | ||
| @protocol CouchbaseValidationContext <NSObject> | ||
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| /** The contents of the current revision of the document, or nil if this is a new document. */ | ||
| @property (readonly) NSDictionary* currentRevision; | ||
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| /** The name of the database being updated. */ | ||
| @property (readonly) NSString* databaseName; | ||
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| /** The name of the logged-in user, or nil if this is an anonymous request. */ | ||
| @property (readonly) NSString* userName; | ||
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| /** Does the user have admin privileges? | ||
| (If the database is in the default "admin party" mode, this will be YES even when the userName is nil.) */ | ||
| @property (readonly) BOOL isAdmin; | ||
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| /** The database's security object, which assigns roles and privileges. */ | ||
| @property (readonly) NSDictionary* security; | ||
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| /** The type of error to report, if the validate block returns NO. | ||
| The default value is "forbidden", which will result in an HTTP 403 status. */ | ||
| @property (copy) NSString* errorType; | ||
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| /** The error message to return in the HTTP response, if the validate block returns NO. | ||
| The default value is "invalid document". */ | ||
| @property (copy) NSString* errorMessage; | ||
| @end |
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