在 PostgreSQL 中编写创建 ST_Geometry 类型的脚本

使用可调用创建空间类型地理处理工具的 Python 脚本,可将 ST_Geometry 类型、子类型和函数添加到 PostgreSQL 数据库。

创建空间类型工具可执行以下操作:

在运行脚本之前,您必须将 st_geometry 库复制到 PostgreSQL 服务器。

下列步骤介绍如何使用 Python 脚本在 PostgreSQL 数据库中安装 ST_Geometry 类型:

步骤:
  1. 从位于 ArcGIS 客户端安装位置中的 DatabaseSupport 目录复制 st_geometry 库,并将其放置在 PostgreSQL lib 目录中。
    • 如果 PostgreSQL 安装在 Linux 服务器上,则以根用户身份登录服务器,并将 st_geometry.so 文件放在 /usr/lib64/pgsql 目录中。
    • 如果 PostgreSQL 安装在 Windows 服务器上,则将 st_geometry.dll 文件放在 %PostgreSQL%\lib 目录中。
  2. 将此示例脚本复制到 ArcGIS for Desktop 中的 Python 窗口或任何 Python IDE(如 PythonWin 或 WING)。根据需要更改任意变量值,以与您的站点信息相匹配。
    """
    Name: create_spatial_type.py
    Description: Provide connection information to an enterprise database
    and create spatial type in the database.
    Type create_spatial_type.py -h or create_spatial_type.py --help for usage
    Author: Esri
    """
    
    # Import system modules
    import arcpy, os, optparse, sys
    
    
    # Define usage and version
    parser = optparse.OptionParser(usage = "usage: %prog [Options]", version="%prog 1.0 for 10.1 release")
    
    #Define help and options
    parser.add_option ("--DBMS", dest="Database_type", type="choice", choices=['ORACLE', 'POSTGRESQL', ''], default="", help="Type of enterprise DBMS: ORACLE, or POSTGRESQL.")
    parser.add_option ("-i", dest="Instance", type="string", default="", help="DBMS instance name")
    parser.add_option ("--auth", dest="account_authentication", type ="choice", choices=['DATABASE_AUTH', 'OPERATING_SYSTEM_AUTH'], default='DATABASE_AUTH', help="Authentication type options (case-sensitive):  DATABASE_AUTH, OPERATING_SYSTEM_AUTH.  Default=DATABASE_AUTH")
    parser.add_option ("-U", dest="Dbms_admin", type="string", default="", help="DBMS administrator user")
    parser.add_option ("-P", dest="Dbms_admin_pwd", type="string", default="", help="DBMS administrator password")
    parser.add_option ("-D", dest="Database", type="string", default="none", help="Database name:  Not required for Oracle")
    parser.add_option ("-p", dest="Password", type="string", default="", help="SDE user password")
    parser.add_option ("-t", dest="tablespace", type="string", default="", help="Default tablespace for SDE user")
    parser.add_option ("--path", dest="libpath", type="string", default="", help="path to the ST shape library including library file name.")
    
    # Check if value entered for option
    try:
    	(options, args) = parser.parse_args()
    
    	
    #Check if no system arguments (options) entered
    	if len(sys.argv) == 1:
    		print "%s: error: %s\n" % (sys.argv[0], "No command options given")
    		parser.print_help()
    		sys.exit(3)
    	
    
    	#Usage parameters for spatial database connection
    	database_type = options.Database_type.upper()
    	instance = options.Instance
    	account_authentication = options.account_authentication.upper()
    	password = options.Password 
    	tablespace = options.tablespace
    	database = options.Database.lower()
    	dbms_admin = options.Dbms_admin
    	dbms_admin_pwd = options.Dbms_admin_pwd
    	lib_path = options.libpath
    
    	if( database_type ==""):	
    		print " \n%s: error: \n%s\n" % (sys.argv[0], "DBMS type (--DBMS) must be specified.")
    		parser.print_help()
    		sys.exit(3)		
    
    	# Local variables
    	instance_temp = instance.replace("\\","_")
    	instance_temp = instance_temp.replace("/","_")
    	instance_temp = instance_temp.replace(":","_")
    	Conn_File_NameT = instance_temp + "_" + database
    	
    	if os.environ.get("TEMP") == None:
    		temp = "c:\\temp"	
    	else:
    		temp = os.environ.get("TEMP")
    	
    	if os.environ.get("TMP") == None:
    		temp = "/usr/tmp"		
    	else:
    		temp = os.environ.get("TMP")  
    	
    	Connection_File_Name = Conn_File_NameT + ".sde"
    	Connection_File_Name_full_path = temp + os.sep + Conn_File_NameT + ".sde"
    	
    	
    	# Check for the .sde file and delete it if present
    	arcpy.env.overwriteOutput=True
    	if os.path.exists(Connection_File_Name_full_path):
    		os.remove(Connection_File_Name_full_path)
    	
    	
    	print "\nCreating Database Connection File...\n"	
    	# Process: Create Database Connection File...
    	# Usage:  out_file_location, out_file_name, DBMS_TYPE, instnace, database, account_authentication, username, password, save_username_password(must be true)
    	arcpy.CreateDatabaseConnection_management(out_folder_path=temp, out_name=Connection_File_Name, database_platform=database_type, instance=instance, database=database, account_authentication=account_authentication, username=dbms_admin, password=dbms_admin_pwd, save_user_pass="TRUE")
    	for i in range(arcpy.GetMessageCount()):
    		if "000565" in arcpy.GetMessage(i):   #Check if database connection was successful
    			arcpy.AddReturnMessage(i)
    			arcpy.AddMessage("\n+++++++++")
    			arcpy.AddMessage("Exiting!!")
    			arcpy.AddMessage("+++++++++\n")
    			sys.exit(3)            
    		else:
    			arcpy.AddReturnMessage(i)
    			arcpy.AddMessage("+++++++++\n")	
    	
    	# Process: Create spatial type...
    	try:
    		print "Create spatial type...\n"
    		arcpy.CreateSpatialType_management(input_workspace=Connection_File_Name_full_path, sde_user_password=password, tablespace_name=tablespace, st_shape_library_path=lib_path)
    		print "after spatial type...\n"
    		for i in range(arcpy.GetMessageCount()):
    			arcpy.AddReturnMessage(i)
    		arcpy.AddMessage("+++++++++\n")
    	except:
    		for i in range(arcpy.GetMessageCount()):
    			arcpy.AddReturnMessage(i)
    			
    	if os.path.exists(Connection_File_Name_full_path):
    		os.remove(Connection_File_Name_full_path)
    			
    #Check if no value entered for option	
    except SystemExit as e:
    	if e.code == 2:
    		parser.usage = ""
    		print "\n"
    		parser.print_help()   
    		parser.exit(2)
    
  3. 运行更改的脚本在 PostgreSQL 数据库中创建 ST_Geometry 类型、子类型和函数。

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9/15/2013